From: briggs <briggs@openbsd.org>
Date: Wed, 18 Sep 1996 02:09:29 +0000 (+0000)
Subject: NetBSD PR#2761 (wrong fmovem emulation) from Takeshi Nakayama
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=1c6e17d94cab3dd2487ee2722fe2481ea5a300b7;p=openbsd

NetBSD PR#2761 (wrong fmovem emulation) from Takeshi Nakayama
(takeshi@sakabe.nuie.nagoya-u.ac.jp).  Untested by me, but it
looks correct against the FP User's manual.
---

diff --git a/sys/arch/m68k/fpe/fpu_emulate.c b/sys/arch/m68k/fpe/fpu_emulate.c
index 172f393a99b..472ec39e52d 100644
--- a/sys/arch/m68k/fpe/fpu_emulate.c
+++ b/sys/arch/m68k/fpe/fpu_emulate.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: fpu_emulate.c,v 1.4 1996/05/29 11:29:30 niklas Exp $	*/
+/*	$OpenBSD: fpu_emulate.c,v 1.5 1996/09/18 02:09:29 briggs Exp $	*/
 /*	$NetBSD: fpu_emulate.c,v 1.6 1996/05/15 07:31:55 leo Exp $	*/
 
 /*
@@ -446,7 +446,7 @@ fpu_emul_fmovm(fe, insn)
     int word1, sig;
     int reglist, regmask, regnum;
     int fpu_to_mem, order;
-    int w1_post_incr;		/* XXX - FP regs order? */
+    int w1_post_incr;
     int *fpregs;
 
     insn->is_advance = 4;
@@ -488,7 +488,11 @@ fpu_emul_fmovm(fe, insn)
     }
 
     while ((0 <= regnum) && (regnum < 8)) {
-	regmask = 1 << regnum;
+	if (w1_post_incr) {
+	    regmask = 0x80 >> regnum;
+	} else {
+	    regmask = 1 << regnum;
+	}
 	if (regmask & reglist) {
 	    if (fpu_to_mem) {
 		sig = fpu_store_ea(frame, insn, &insn->is_ea0,