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Instr-jalr

Make-instr-jalr

Basic constructor macro for instr-jalr structures.

Syntax

(make-instr-jalr [:rd <rd>] 
                 [:rs1 <rs1>] 
                 [:imm <imm>])

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

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

Definition

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

Macro: make-instr-jalr

(defmacro make-instr-jalr (&rest args)
  (std::make-aggregate 'instr-jalr
                       args '((:rd) (:rs1) (:imm))
                       'make-instr-jalr
                       nil))

Function: instr-jalr

(defun instr-jalr (rd rs1 imm)
  (declare (xargs :guard (and (ubyte5p rd)
                              (ubyte5p rs1)
                              (ubyte12p imm))))
  (declare (xargs :guard t))
  (let ((__function__ 'instr-jalr))
    (declare (ignorable __function__))
    (b* ((rd (mbe :logic (ubyte5-fix rd) :exec rd))
         (rs1 (mbe :logic (ubyte5-fix rs1) :exec rs1))
         (imm (mbe :logic (ubyte12-fix imm)
                   :exec imm)))
      (cons :jalr (list rd rs1 imm)))))