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Fix calculations in x86 emulator for the long long case (Andreas Schwab).

This commit is contained in:
Matthias Hopf 2007-03-15 16:56:01 +01:00
parent ae75019ccf
commit 2fe74ef339
1 changed files with 2 additions and 2 deletions
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4
hw/xfree86/x86emu/prim_ops.c
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@ -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) void imul_long_direct(u32 *res_lo, u32* res_hi,u32 d, u32 s)
{ {
#ifdef __HAS_LONG_LONG__ #ifdef __HAS_LONG_LONG__
s64 res = (s32)d * (s32)s; s64 res = (s64)(s32)d * (s32)s;
*res_lo = (u32)res; *res_lo = (u32)res;
*res_hi = (u32)(res >> 32); *res_hi = (u32)(res >> 32);
@ -2174,7 +2174,7 @@ Implements the MUL instruction and side effects.
void mul_long(u32 s) void mul_long(u32 s)
{ {
#ifdef __HAS_LONG_LONG__ #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_EAX = (u32)res;
M.x86.R_EDX = (u32)(res >> 32); M.x86.R_EDX = (u32)(res >> 32);