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- ;;; -*- Package: SPARC -*-
- ;;;
- ;;; **********************************************************************
- ;;; This code was written as part of the Spice Lisp project at
- ;;; Carnegie-Mellon University, and has been placed in the public domain.
- ;;; If you want to use this code or any part of Spice Lisp, please contact
- ;;; Scott Fahlman (FAHLMAN@CMUC).
- ;;; **********************************************************************
- ;;;
- ;;; $Header: pred.lisp,v 1.1 90/11/30 17:04:59 wlott Exp $
- ;;;
- ;;; This file contains the VM definition of predicate VOPs for the SPARC.
- ;;;
- ;;; Written by Rob MacLachlan
- ;;;
- ;;; Converted by William Lott.
- ;;;
-
- (in-package "SPARC")
-
-
- ;;;; The Branch VOP.
-
- ;;; The unconditional branch, emitted when we can't drop through to the desired
- ;;; destination. Dest is the continuation we transfer control to.
- ;;;
- (define-vop (branch)
- (:info dest)
- (:generator 5
- (inst b dest)
- (inst nop)))
-
-
- ;;;; Conditional VOPs:
-
- (define-vop (if-eq)
- (:args (x :scs (any-reg descriptor-reg zero null))
- (y :scs (any-reg descriptor-reg zero null)))
- (:conditional)
- (:info target not-p)
- (:policy :fast-safe)
- (:translate eq)
- (:generator 3
- (inst cmp x y)
- (inst b (if not-p :ne :eq) target)
- (inst nop)))
-