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Xcr0bits

Xcr0bits->bndcsr-state

Access the |X86ISA|::|BNDCSR-STATE| field of a xcr0bits bit structure.

Signature
(xcr0bits->bndcsr-state x) → bndcsr-state
Arguments: x — Guard (xcr0bits-p x).
Returns: bndcsr-state — Type (bitp bndcsr-state).

Definitions and Theorems

Function: xcr0bits->bndcsr-state$inline

(defun xcr0bits->bndcsr-state$inline (x)
 (declare (xargs :guard (xcr0bits-p x)))
 (mbe
    :logic
    (let ((x (xcr0bits-fix x)))
      (part-select x :low 4 :width 1))
    :exec (the (unsigned-byte 1)
               (logand (the (unsigned-byte 1) 1)
                       (the (unsigned-byte 60)
                            (ash (the (unsigned-byte 64) x) -4))))))

Theorem: bitp-of-xcr0bits->bndcsr-state

(defthm bitp-of-xcr0bits->bndcsr-state
  (b* ((bndcsr-state (xcr0bits->bndcsr-state$inline x)))
    (bitp bndcsr-state))
  :rule-classes :rewrite)

Theorem: xcr0bits->bndcsr-state$inline-of-xcr0bits-fix-x

(defthm xcr0bits->bndcsr-state$inline-of-xcr0bits-fix-x
  (equal (xcr0bits->bndcsr-state$inline (xcr0bits-fix x))
         (xcr0bits->bndcsr-state$inline x)))

Theorem: xcr0bits->bndcsr-state$inline-xcr0bits-equiv-congruence-on-x

(defthm xcr0bits->bndcsr-state$inline-xcr0bits-equiv-congruence-on-x
  (implies (xcr0bits-equiv x x-equiv)
           (equal (xcr0bits->bndcsr-state$inline x)
                  (xcr0bits->bndcsr-state$inline x-equiv)))
  :rule-classes :congruence)

Theorem: xcr0bits->bndcsr-state-of-xcr0bits

(defthm xcr0bits->bndcsr-state-of-xcr0bits
  (equal (xcr0bits->bndcsr-state
              (xcr0bits fpu/mmx-state sse-state
                        avx-state bndreg-state bndcsr-state
                        opmask-state zmm_hi256-state
                        hi16_zmm-state res1 pkru-state res2
                        tileconfig-state tiledata-state res4))
         (bfix bndcsr-state)))

Theorem: xcr0bits->bndcsr-state-of-write-with-mask

(defthm xcr0bits->bndcsr-state-of-write-with-mask
 (implies
  (and
   (fty::bitstruct-read-over-write-hyps x xcr0bits-equiv-under-mask)
   (xcr0bits-equiv-under-mask x y fty::mask)
   (equal (logand (lognot fty::mask) 16)
          0))
  (equal (xcr0bits->bndcsr-state x)
         (xcr0bits->bndcsr-state y))))