From c855188598407d2221e7b1c33506ed7bda50bb01 Mon Sep 17 00:00:00 2001 From: wlott <wlott> Date: Fri, 18 May 1990 00:57:18 +0000 Subject: [PATCH] Changed a SC restriction to be unsigned-reg instead of doing the shift myself. Changed get-header-data to treat the header data as unsigned. --- compiler/mips/system.lisp | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/compiler/mips/system.lisp b/compiler/mips/system.lisp index 8041efd12..a17d09355 100644 --- a/compiler/mips/system.lisp +++ b/compiler/mips/system.lisp @@ -7,7 +7,7 @@ ;;; Scott Fahlman (FAHLMAN@CMUC). ;;; ********************************************************************** ;;; -;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/mips/system.lisp,v 1.14 1990/05/14 02:00:23 wlott Exp $ +;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/compiler/mips/system.lisp,v 1.15 1990/05/18 00:57:18 wlott Exp $ ;;; ;;; MIPS VM definitions of various system hacking operations. ;;; @@ -98,12 +98,10 @@ (define-vop (get-header-data) (:args (x :scs (descriptor-reg))) - (:temporary (:scs (non-descriptor-reg) :type random) temp) - (:results (res :scs (any-reg descriptor-reg))) + (:results (res :scs (unsigned-reg))) (:generator 6 - (loadw temp x 0 vm:other-pointer-type) - (inst sra temp temp vm:type-bits) - (inst sll res temp 2))) + (loadw res x 0 vm:other-pointer-type) + (inst srl res res vm:type-bits))) (define-vop (set-header-data) (:args (x :scs (descriptor-reg) :target res) -- GitLab