Get the msb field from a vcd-wire.
(vcd-wire->msb x) → msb
This is an ordinary field accessor created by defprod.
Function:
(defun vcd-wire->msb$inline (x) (declare (xargs :guard (vcd-wire-p x))) (declare (xargs :guard t)) (let ((__function__ 'vcd-wire->msb)) (declare (ignorable __function__)) (mbe :logic (b* ((x (and t x))) (ifix (cdr (std::da-nth 1 x)))) :exec (cdr (std::da-nth 1 x)))))
Theorem:
(defthm integerp-of-vcd-wire->msb (b* ((msb (vcd-wire->msb$inline x))) (integerp msb)) :rule-classes :type-prescription)
Theorem:
(defthm vcd-wire->msb$inline-of-vcd-wire-fix-x (equal (vcd-wire->msb$inline (vcd-wire-fix x)) (vcd-wire->msb$inline x)))
Theorem:
(defthm vcd-wire->msb$inline-vcd-wire-equiv-congruence-on-x (implies (vcd-wire-equiv x x-equiv) (equal (vcd-wire->msb$inline x) (vcd-wire->msb$inline x-equiv))) :rule-classes :congruence)