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• Xmms-reads-and-writes

Xmmi-size

Signature

(xmmi-size nbytes index x86) → val

Returns

val — Type (natp val).

Definitions and Theorems

Function: xmmi-size$inline

(defun xmmi-size$inline (nbytes index x86)
  (declare (xargs :stobjs (x86)))
  (declare (type (unsigned-byte 5) nbytes)
           (type (unsigned-byte 4) index))
  (declare (xargs :guard (member nbytes '(4 8 16))))
  (case nbytes
    (4 (rx32 index x86))
    (8 (rx64 index x86))
    (16 (rx128 index x86))
    (otherwise 0)))

Theorem: natp-of-xmmi-size

(defthm natp-of-xmmi-size
  (b* ((val (xmmi-size$inline nbytes index x86)))
    (natp val))
  :rule-classes :type-prescription)