Retro/pcem
Watch
1
0
Fork
You've already forked pcem
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Further fixes to IMUL flags.

Browse source
This commit is contained in:
TomW 2014-10-02 19:52:56 +01:00
commit 008c795834
2 changed files with 46 additions and 46 deletions
Download patch file Download diff file Expand all files Collapse all files

24
src/x86_ops_misc.h
View file

@ -75,8 +75,8 @@ static int opF6_a16(uint32_t fetchdat)
tempws = (int)((int8_t)AL) * (int)((int8_t)dst);
AX = tempws & 0xffff;
flags_rebuild();
if (AH && AH != 0xff) flags |= (C_FLAG | V_FLAG);
else flags &= ~(C_FLAG | V_FLAG);
if (((int16_t)AX >> 7) != 0 && ((int16_t)AX >> 7) != -1) flags |= (C_FLAG | V_FLAG);
else flags &= ~(C_FLAG | V_FLAG);
cycles -= 14;
break;
case 0x30: /*DIV AL,b*/
@ -163,8 +163,8 @@ static int opF6_a32(uint32_t fetchdat)
tempws = (int)((int8_t)AL) * (int)((int8_t)dst);
AX = tempws & 0xffff;
flags_rebuild();
if (AH && AH != 0xff) flags |= (C_FLAG | V_FLAG);
else flags &= ~(C_FLAG | V_FLAG);
if (((int16_t)AX >> 7) != 0 && ((int16_t)AX >> 7) != -1) flags |= (C_FLAG | V_FLAG);
else flags &= ~(C_FLAG | V_FLAG);
cycles -= 14;
break;
case 0x30: /*DIV AL,b*/
@ -257,8 +257,8 @@ static int opF7_w_a16(uint32_t fetchdat)
AX = templ & 0xFFFF;
DX = templ >> 16;
flags_rebuild();
if (DX && DX != 0xFFFF) flags |= (C_FLAG | V_FLAG);
else flags &= ~(C_FLAG | V_FLAG);
if (((int32_t)templ >> 15) != 0 && ((int32_t)templ >> 15) != -1) flags |= (C_FLAG | V_FLAG);
else flags &= ~(C_FLAG | V_FLAG);
cycles -= 22;
break;
case 0x30: /*DIV AX,w*/
@ -341,8 +341,8 @@ static int opF7_w_a32(uint32_t fetchdat)
AX = templ & 0xFFFF;
DX = templ >> 16;
flags_rebuild();
if (DX && DX != 0xFFFF) flags |= (C_FLAG | V_FLAG);
else flags &= ~(C_FLAG | V_FLAG);
if (((int32_t)templ >> 15) != 0 && ((int32_t)templ >> 15) != -1) flags |= (C_FLAG | V_FLAG);
else flags &= ~(C_FLAG | V_FLAG);
cycles -= 22;
break;
case 0x30: /*DIV AX,w*/
@ -425,8 +425,8 @@ static int opF7_l_a16(uint32_t fetchdat)
EAX = temp64 & 0xffffffff;
EDX = temp64 >> 32;
flags_rebuild();
if (EDX && EDX != 0xffffffff) flags |= (C_FLAG|V_FLAG);
else flags &= ~(C_FLAG|V_FLAG);
if (((int64_t)temp64 >> 31) != 0 && ((int64_t)temp64 >> 31) != -1) flags |= (C_FLAG | V_FLAG);
else flags &= ~(C_FLAG | V_FLAG);
cycles -= 38;
break;
case 0x30: /*DIV EAX,l*/
@ -485,8 +485,8 @@ static int opF7_l_a32(uint32_t fetchdat)
EAX = temp64 & 0xffffffff;
EDX = temp64 >> 32;
flags_rebuild();
if (EDX && EDX != 0xffffffff) flags |= (C_FLAG|V_FLAG);
else flags &= ~(C_FLAG|V_FLAG);
if (((int64_t)temp64 >> 31) != 0 && ((int64_t)temp64 >> 31) != -1) flags |= (C_FLAG | V_FLAG);
else flags &= ~(C_FLAG | V_FLAG);
cycles -= 38;
break;
case 0x30: /*DIV EAX,l*/