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Literal-signed

Make-literal-signed

Basic constructor macro for literal-signed structures.

Syntax

(make-literal-signed [:val <val>] 
                     [:size <size>])

This is the usual way to construct literal-signed structures. It simply conses together a structure with the specified fields.

This macro generates a new literal-signed structure from scratch. See also change-literal-signed, which can "change" an existing structure, instead.

Definition

This is an ordinary make- macro introduced by fty::defprod.

Macro: make-literal-signed

(defmacro make-literal-signed (&rest args)
  (std::make-aggregate 'literal-signed
                       args '((:val) (:size))
                       'make-literal-signed
                       nil))

Function: literal-signed

(defun literal-signed (val size)
  (declare (xargs :guard (and (natp val) (bitsizep size))))
  (declare (xargs :guard t))
  (let ((__function__ 'literal-signed))
    (declare (ignorable __function__))
    (b* ((val (mbe :logic (nfix val) :exec val))
         (size (mbe :logic (bitsize-fix size)
                    :exec size)))
      (cons :signed (list val size)))))