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Memory

Memory-fix

Fixer for memory.

Signature
(memory-fix x) → *
Arguments: x — Guard (memoryp x).

Definitions and Theorems

Function: memory-fix

(defun memory-fix (x)
  (declare (xargs :guard (memoryp x)))
  (mbe :logic
       (if (memoryp x)
           x
         (acl2::ubyte8-list-fix (take 4294967296 x)))
       :exec x))

Theorem: memoryp-of-memory-fix

(defthm memoryp-of-memory-fix
  (memoryp (memory-fix x)))

Theorem: memory-fix-when-memoryp

(defthm memory-fix-when-memoryp
  (implies (memoryp x)
           (equal (memory-fix x) x)))