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One-byte-opcodes

X86-mov-op/en-oi

Signature
(x86-mov-op/en-oi proc-mode start-rip temp-rip prefixes rex-byte opcode modr/m sib x86) → x86
Returns: x86 — Type (x86p x86), given (x86p x86).

Definitions and Theorems

Function: x86-mov-op/en-oi

(defun x86-mov-op/en-oi
       (proc-mode start-rip temp-rip
                  prefixes rex-byte 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 8) opcode)
          (type (unsigned-byte 8) modr/m)
          (type (unsigned-byte 8) sib))
 (declare (ignorable proc-mode start-rip temp-rip
                     prefixes rex-byte opcode modr/m sib))
 (declare (xargs :guard (and (prefixes-p prefixes)
                             (modr/m-p modr/m)
                             (sib-p sib)
                             (rip-guard-okp proc-mode temp-rip))))
 (let ((__function__ 'x86-mov-op/en-oi))
  (declare (ignorable __function__))
  (b* ((?ctx 'x86-mov-op/en-oi))
    (b*
      ((byte-operand? (and (<= 176 opcode) (<= opcode 183)))
       ((the (integer 1 8) operand-size)
        (select-operand-size proc-mode byte-operand?
                             rex-byte nil prefixes nil nil nil x86))
       ((mv flg0 imm x86)
        (rme-size-opt proc-mode
                      operand-size temp-rip 1 :x nil x86
                      :mem-ptr? nil))
       ((when flg0)
        (!!ms-fresh :imm-rme-size-error flg0))
       ((mv flg temp-rip)
        (add-to-*ip proc-mode temp-rip operand-size x86))
       ((when flg)
        (!!ms-fresh :rip-increment-error flg))
       (badlength? (check-instruction-length start-rip temp-rip 0))
       ((when badlength?)
        (!!fault-fresh :gp 0
                       :instruction-length badlength?))
       (reg (the (unsigned-byte 3)
                 (logand 7 opcode)))
       (x86 (!rgfi-size operand-size (reg-index reg rex-byte 0)
                        imm rex-byte x86))
       (x86 (write-*ip proc-mode temp-rip x86)))
      x86))))

Theorem: x86p-of-x86-mov-op/en-oi

(defthm x86p-of-x86-mov-op/en-oi
 (implies
   (x86p x86)
   (b* ((x86 (x86-mov-op/en-oi proc-mode start-rip temp-rip prefixes
                               rex-byte opcode modr/m sib x86)))
     (x86p x86)))
 :rule-classes :rewrite)