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• Modr/m-decoding

Show-no-modr/m-insts

Show all the instructions in inst-lst which don't require a ModR/M byte

Signature

(show-no-modr/m-insts inst-lst) → no-modr/m-insts

Arguments

inst-lst — Guard (inst-list-p inst-lst).

Returns

no-modr/m-insts — Type (inst-list-p no-modr/m-insts), given (inst-list-p inst-lst).

Definitions and Theorems

Function: show-no-modr/m-insts

(defun show-no-modr/m-insts (inst-lst)
  (declare (xargs :guard (inst-list-p inst-lst)))
  (let ((__function__ 'show-no-modr/m-insts))
    (declare (ignorable __function__))
    (b* (((when (endp inst-lst)) nil)
         (inst (car inst-lst))
         (rest (show-no-modr/m-insts (cdr inst-lst))))
      (if (inst-needs-modr/m-p inst)
          rest
        (cons inst rest)))))

Theorem: inst-list-p-of-show-no-modr/m-insts

(defthm inst-list-p-of-show-no-modr/m-insts
  (implies (inst-list-p inst-lst)
           (b* ((no-modr/m-insts (show-no-modr/m-insts inst-lst)))
             (inst-list-p no-modr/m-insts)))
  :rule-classes :rewrite)