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• State-stobj

Read1-memory-unsigned64

Signature

(read1-memory-unsigned64 addr stat1 feat) → *

Definitions and Theorems

Function: read1-memory-unsigned64

(defun read1-memory-unsigned64 (addr stat1 feat)
 (declare (xargs :stobjs (stat1)))
 (declare (xargs :guard (and (stat1p stat1)
                             (b* ((stat (stat-from-stat1 stat1)))
                               (and (integerp addr)
                                    (statp stat)
                                    (featp feat)
                                    (stat-validp stat feat))))))
 (let ((__function__ 'read1-memory-unsigned64))
  (declare (ignorable __function__))
  (if
   (mbt (stat1p stat1))
   (b* ((stat (stat-from-stat1 stat1)))
    (let* ((b0 (read-memory-unsigned8 addr stat feat))
           (b1 (read-memory-unsigned8 (+ (lifix addr) 1)
                                      stat feat))
           (b2 (read-memory-unsigned8 (+ (lifix addr) 2)
                                      stat feat))
           (b3 (read-memory-unsigned8 (+ (lifix addr) 3)
                                      stat feat))
           (b4 (read-memory-unsigned8 (+ (lifix addr) 4)
                                      stat feat))
           (b5 (read-memory-unsigned8 (+ (lifix addr) 5)
                                      stat feat))
           (b6 (read-memory-unsigned8 (+ (lifix addr) 6)
                                      stat feat))
           (b7 (read-memory-unsigned8 (+ (lifix addr) 7)
                                      stat feat)))
     (cond
      ((feat-little-endianp feat)
       (logapp
        8 b0
        (logapp
         8 b1
         (logapp
          8 b2
          (logapp
             8 b3
             (logapp 8 b4
                     (logapp 8
                             b5 (logapp 8 b6 (logapp 8 b7 0)))))))))
      ((feat-big-endianp feat)
       (logapp
        8 b7
        (logapp
         8 b6
         (logapp
          8 b5
          (logapp
             8 b4
             (logapp 8 b3
                     (logapp 8
                             b2 (logapp 8 b1 (logapp 8 b0 0)))))))))
      (t (acl2::impossible-fn)))))
   0)))