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Sinteger-format

Sinteger-formatp

Recognizer for sinteger-format structures.

Signature
(sinteger-formatp x) → *

Definitions and Theorems

Function: sinteger-formatp

(defun sinteger-formatp (x)
  (declare (xargs :guard t))
  (let ((__function__ 'sinteger-formatp))
    (declare (ignorable __function__))
    (and (mbe :logic (and (alistp x)
                          (equal (strip-cars x)
                                 '(bits signed traps)))
              :exec (fty::alist-with-carsp x '(bits signed traps)))
         (b* ((bits (cdr (std::da-nth 0 x)))
              (signed (cdr (std::da-nth 1 x)))
              (?traps (cdr (std::da-nth 2 x))))
           (and (sinteger-bit-role-listp bits)
                (signed-formatp signed)
                (sinteger-bit-roles-wfp bits))))))

Theorem: consp-when-sinteger-formatp

(defthm consp-when-sinteger-formatp
  (implies (sinteger-formatp x) (consp x))
  :rule-classes :compound-recognizer)