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    • X86-decoder

    Vex-0f38-execute

    Dispatch function for VEX-encoded instructions in the first three-byte opcode map

    Signature
    (vex-0f38-execute proc-mode 
                      start-rip temp-rip prefixes rex-byte 
                      vex-prefixes opcode modr/m sib x86) 
     
      → 
    x86
    Arguments
    temp-rip — temp-rip points to the byte following the opcode byte.
    vex-prefixes — Completely populated when this function is called.
    Returns
    x86 — Type (x86p x86), given (x86p x86).

    Definitions and Theorems

    Function: vex-0f38-execute

    (defun
     vex-0f38-execute
     (proc-mode start-rip temp-rip prefixes rex-byte
                vex-prefixes opcode modr/m sib x86)
     (declare (xargs :stobjs (x86)))
     (declare (type (integer 0 4) proc-mode)
              (type (signed-byte 48) start-rip)
              (type (signed-byte 48) temp-rip)
              (type (unsigned-byte 52) prefixes)
              (type (unsigned-byte 8) rex-byte)
              (type (unsigned-byte 24) vex-prefixes)
              (type (unsigned-byte 8) opcode)
              (type (unsigned-byte 8) modr/m)
              (type (unsigned-byte 8) sib))
     (declare (xargs :guard (and (vex-prefixes-byte0-p vex-prefixes)
                                 (modr/m-p modr/m)
                                 (sib-p sib))))
     (case
      opcode
      (0
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (1
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (2
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (3
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (4
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (5
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (6
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (7
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (8
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (9
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (10
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (11
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (12
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (13
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (14
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (15
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (16 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                            start-rip temp-rip x86))))
      (17 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                            start-rip temp-rip x86))))
      (18 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                            start-rip temp-rip x86))))
      (19
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-11 (:f16c :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:f16c :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-11 (:f16c :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:f16c :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (20 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                            start-rip temp-rip x86))))
      (21 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                            start-rip temp-rip x86))))
      (22
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (23
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (24
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-6 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-6 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              (equal (modr/m->mod modr/m) 3))
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-6 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              (equal (modr/m->mod modr/m) 3))
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-6 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (25
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-6 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              (equal (modr/m->mod modr/m) 3))
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-6 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (26
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-6 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (27 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                            start-rip temp-rip x86))))
      (28
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (29
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (30
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (31 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                            start-rip temp-rip x86))))
      (32
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-5 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-5 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (33
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-5 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-5 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (34
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-5 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-5 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (35
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-5 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-5 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (36
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-5 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-5 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (37
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-5 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-5 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (38 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                            start-rip temp-rip x86))))
      (39 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                            start-rip temp-rip x86))))
      (40
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (41
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (42
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-1 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-1 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (43
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (44
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-6 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-6 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (45
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-6 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-6 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (46
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-6 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-6 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (47
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-6 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-6 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (48
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-5 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-5 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (49
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-5 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-5 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (50
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-5 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-5 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (51
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-5 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-5 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (52
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-5 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-5 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (53
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-5 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (54
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (55
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (56
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (57
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (58
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (59
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (60
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (61
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (62
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (63
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (64
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (65
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
               (let ((chk-ex (or (chk-exc :type-4 (:avx)))))
                    (or chk-ex
                        (if (or (equal (feature-flags-macro '(:avx)) 0))
                            ':ud
                            nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (66 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                            start-rip temp-rip x86))))
      (67 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                            start-rip temp-rip x86))))
      (68 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                            start-rip temp-rip x86))))
      (69
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (70
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (71
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-4 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (76 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                            start-rip temp-rip x86))))
      (77 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                            start-rip temp-rip x86))))
      (78 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                            start-rip temp-rip x86))))
      (79 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                            start-rip temp-rip x86))))
      (82 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                            start-rip temp-rip x86))))
      (83 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                            start-rip temp-rip x86))))
      (88
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-7 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-7 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (89
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-7 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-7 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (90
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-6 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (91 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                            start-rip temp-rip x86))))
      (100 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (101 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (102 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (117 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (118 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (119 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (120
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-7 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-7 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (121
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-7 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-7 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (122 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (123 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (124 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (125 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (126 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (127 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (131 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (136 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (137 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (138 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (139 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (140
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-6 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-6 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-6 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-6 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (141 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (142
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-6 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-6 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-6 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              (not (equal (modr/m->mod modr/m) 3)))
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-6 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (144
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-12 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-12 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-12 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-12 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (145
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-12 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-12 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-12 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-12 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (146
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-12 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-12 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-12 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-12 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (147
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-12 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-12 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-12 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
                (let ((chk-ex (or (chk-exc :type-12 (:avx2)))))
                     (or chk-ex
                         (if (or (equal (feature-flags-macro '(:avx2))
                                        0))
                             ':ud
                             nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (150
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (151
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (152
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (153
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (154
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (155
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (156
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (157
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (158
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (159
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (160 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (161 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (162 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (163 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (166
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (167
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (168
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (169
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (170
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (171
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (172
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (173
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (174
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (175
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (180 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (181 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (182
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (183
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (184
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (185
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (186
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (187
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (188
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (189
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (190
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 1)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (191
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-2 (:fma :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:fma :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (196 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (198 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (199 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (200 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (202 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (203 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (204 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (205 (cond (t (x86-illegal-instruction "#UD Encountered!"
                                             start-rip temp-rip x86))))
      (219
       (cond
        ((and (equal (vex->vvvv vex-prefixes) 15)
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-4 (:aes :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:aes :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (220
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-4 (:aes :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:aes :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (221
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-4 (:aes :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:aes :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (222
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-4 (:aes :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:aes :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (223
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              nil)
         (let
          ((fault-var
              (let ((chk-ex (or (chk-exc :type-4 (:aes :avx)))))
                   (or chk-ex
                       (if (or (equal (feature-flags-macro '(:aes :avx))
                                      0))
                           ':ud
                           nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (242
       (cond
        ((and (equal (vex->pp vex-prefixes) 0)
              (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi1 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi1 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->pp vex-prefixes) 0)
              (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi1 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi1 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (243
       (cond
        ((and (equal (vex->pp vex-prefixes) 0)
              (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->w vex-prefixes) 0)
              (equal (modr/m->reg modr/m) 1))
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi1 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi1 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->pp vex-prefixes) 0)
              (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->w vex-prefixes) 1)
              (equal (modr/m->reg modr/m) 1))
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi1 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi1 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->pp vex-prefixes) 0)
              (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->w vex-prefixes) 0)
              (equal (modr/m->reg modr/m) 2))
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi1 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi1 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->pp vex-prefixes) 0)
              (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->w vex-prefixes) 1)
              (equal (modr/m->reg modr/m) 2))
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi1 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi1 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->pp vex-prefixes) 0)
              (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->w vex-prefixes) 0)
              (equal (modr/m->reg modr/m) 3))
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi1 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi1 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->pp vex-prefixes) 0)
              (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->w vex-prefixes) 1)
              (equal (modr/m->reg modr/m) 3))
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi1 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi1 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (245
       (cond
        ((and (equal (vex->pp vex-prefixes) 0)
              (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi2 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi2 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->pp vex-prefixes) 0)
              (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi2 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi2 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 3)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi2 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi2 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 3)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi2 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi2 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 2)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi2 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi2 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 2)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi2 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi2 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (246
       (cond
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 3)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi2 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi2 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 3)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi2 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi2 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (247
       (cond
        ((and (equal (vex->pp vex-prefixes) 0)
              (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi1 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi1 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (equal (vex->pp vex-prefixes) 0)
              (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi1 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi1 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 2)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi2 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi2 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 2)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi2 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi2 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi2 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi2 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 1)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi2 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi2 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 3)
              (equal (vex->w vex-prefixes) 0)
              nil)
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi2 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi2 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        ((and (not (equal (vex->vvvv vex-prefixes) 15))
              (equal (vex->l vex-prefixes) 0)
              (equal (vex->pp vex-prefixes) 3)
              (equal (vex->w vex-prefixes) 1)
              nil)
         (let
          ((fault-var
             (let ((chk-ex (or (chk-exc :type-13 (:bmi2 :avx)))))
                  (or chk-ex
                      (if (or (equal (feature-flags-macro '(:bmi2 :avx))
                                     0))
                          ':ud
                          nil)))))
          (if
           fault-var
           (case fault-var
                 (:ud (x86-illegal-instruction "#UD Encountered!"
                                               start-rip temp-rip x86))
                 (:gp (x86-general-protection "#GP Encountered!"
                                              start-rip temp-rip x86))
                 (:nm (x86-device-not-available "#NM Encountered!"
                                                start-rip temp-rip x86))
                 (t (x86-step-unimplemented
                         "Unimplemented exception in x86isa!"
                         x86)))
           (x86-step-unimplemented "Opcode Unimplemented in x86isa!"
                                   x86))))
        (t (x86-illegal-instruction "#UD Encountered!"
                                    start-rip temp-rip x86))))
      (t (x86-illegal-instruction "#UD Encountered!"
                                  start-rip temp-rip x86))))

    Theorem: x86p-of-vex-0f38-execute

    (defthm
     x86p-of-vex-0f38-execute
     (implies
       (x86p x86)
       (b* ((x86 (vex-0f38-execute proc-mode
                                   start-rip temp-rip prefixes rex-byte
                                   vex-prefixes opcode modr/m sib x86)))
           (x86p x86)))
     :rule-classes :rewrite)