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Feat-embedp

Check if the features indicate embedded systems.

Signature

(feat-embedp feat) → yes/no

Arguments

feat — Guard (featp feat).

Returns

yes/no — Type (booleanp yes/no).

That is, if the base is RV32E or RV64E.

Definitions and Theorems

Function: feat-embedp

(defun feat-embedp (feat)
  (declare (xargs :guard (featp feat)))
  (let ((__function__ 'feat-embedp))
    (declare (ignorable __function__))
    (or (feat-base-case (feat->base feat)
                        :rv32e)
        (feat-base-case (feat->base feat)
                        :rv64e))))

Theorem: booleanp-of-feat-embedp

(defthm booleanp-of-feat-embedp
  (b* ((yes/no (feat-embedp feat)))
    (booleanp yes/no))
  :rule-classes :rewrite)

Theorem: feat-embedp-of-feat-fix-feat

(defthm feat-embedp-of-feat-fix-feat
  (equal (feat-embedp (feat-fix feat))
         (feat-embedp feat)))

Theorem: feat-embedp-feat-equiv-congruence-on-feat

(defthm feat-embedp-feat-equiv-congruence-on-feat
  (implies (feat-equiv feat feat-equiv)
           (equal (feat-embedp feat)
                  (feat-embedp feat-equiv)))
  :rule-classes :congruence)