xorg-x11-server/xserver-1.3.0-x86emu-imul-int64.patch
Adam Jackson 65a4e80308 * Tue Apr 10 2007 Adam Jackson <ajax@redhat.com> 1.2.99.905-3
- xserver-1.3.0-domain-obiwan.patch: Fix a PCI domain off-by-one. (#235861)
- xserver-1.3.0-x86emu-imul-int64.patch: Fix imul in x86emu. (#235861)
2007-04-10 20:58:00 +00:00

29 lines
915 B
Diff

commit 2fe74ef339c3a4902ae8214f5a0454662895422c
Author: Matthias Hopf <mhopf@suse.de>
Date: Thu Mar 15 16:56:01 2007 +0100
Fix calculations in x86 emulator for the long long case (Andreas Schwab).
diff --git a/hw/xfree86/x86emu/prim_ops.c b/hw/xfree86/x86emu/prim_ops.c
index 461e09e..b9e7257 100644
--- a/hw/xfree86/x86emu/prim_ops.c
+++ b/hw/xfree86/x86emu/prim_ops.c
@@ -2082,7 +2082,7 @@ Implements the IMUL instruction and side effects.
void imul_long_direct(u32 *res_lo, u32* res_hi,u32 d, u32 s)
{
#ifdef __HAS_LONG_LONG__
- s64 res = (s32)d * (s32)s;
+ s64 res = (s64)(s32)d * (s32)s;
*res_lo = (u32)res;
*res_hi = (u32)(res >> 32);
@@ -2174,7 +2174,7 @@ Implements the MUL instruction and side effects.
void mul_long(u32 s)
{
#ifdef __HAS_LONG_LONG__
- u64 res = (u32)M.x86.R_EAX * (u32)s;
+ u64 res = (u64)M.x86.R_EAX * s;
M.x86.R_EAX = (u32)res;
M.x86.R_EDX = (u32)(res >> 32);