ShuriZma
/
pcsx2
mirror of https://github.com/PCSX2/pcsx2.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

eh looks like rama had more recent versions of these files too. so i'm reverting them. hopefully i didn't miss anymore files :( 

git-svn-id: http://pcsx2-playground.googlecode.com/svn/trunk@8 a6443dda-0b58-4228-96e9-037be469359c
This commit is contained in:
cottonvibes 2008-08-12 09:04:42 +00:00 committed by Gregory Hainaut
parent dabe75ff69
commit e848a8a485
1 changed files with 112 additions and 42 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

154
pcsx2/x86/ix86/ix86.c
View File

@ -72,16 +72,16 @@ void WriteRmOffset(x86IntRegType to, int offset)
if( (to&7) == ESP ) {
if( offset == 0 ) {
ModRM( 0, 0, 4 );
ModRM( 0, ESP, 4 );
SibSB( 0, ESP, 4 );
}
else if( offset < 128 && offset >= -128 ) {
ModRM( 1, 0, 4 );
ModRM( 0, ESP, 4 );
SibSB( 0, ESP, 4 );
write8(offset);
}
else {
ModRM( 2, 0, 4 );
ModRM( 0, ESP, 4 );
SibSB( 0, ESP, 4 );
write32(offset);
}
}
@ -1117,32 +1117,56 @@ void ADD64RtoR( x86IntRegType to, x86IntRegType from )
void ADD32ItoR( x86IntRegType to, u32 from )
{
RexB(0, to);
if ( to == EAX) {
write8( 0x05 );
}
else {
write8( 0x81 );
if(from < 0x80)
{
write8( 0x83 );
ModRM( 3, 0, to );
write8( from );
}
else
{
if ( to == EAX) {
write8( 0x05 );
}
else {
write8( 0x81 );
ModRM( 3, 0, to );
}
write32( from );
}
write32( from );
}
/* add imm32 to m32 */
void ADD32ItoM( uptr to, u32 from )
{
write8( 0x81 );
ModRM( 0, 0, DISP32 );
write32( MEMADDR(to, 8) );
write32( from );
if(from < 0x80)
{
write8( 0x83 );
ModRM( 0, 0, DISP32 );
write32( MEMADDR(to, 8) );
write8( from );
} else {
write8( 0x81 );
ModRM( 0, 0, DISP32 );
write32( MEMADDR(to, 8) );
write32( from );
}
}
// add imm32 to [r32+off]
void ADD32ItoRmOffset( x86IntRegType to, u32 from, int offset)
{
RexB(0,to);
write8( 0x81 );
WriteRmOffset(to,offset);
write32(from);
RexB(0,to);
if(from < 0x80)
{
write8( 0x83 );
WriteRmOffset(to,offset);
write8(from);
} else {
write8( 0x81 );
WriteRmOffset(to,offset);
write32(from);
}
}
/* add r32 to r32 */
@ -1183,28 +1207,46 @@ void ADD16RtoR( x86IntRegType to , x86IntRegType from )
/* add imm16 to r16 */
void ADD16ItoR( x86IntRegType to, u16 from )
{
write8( 0x66 );
RexB(0,to);
write8( 0x66 );
if ( to == EAX)
{
{
write8( 0x05 );
write16( from );
}
else
{
else if(from < 0x80)
{
write8( 0x83 );
ModRM( 3, 0, to );
write8( from );
}
else
{
write8( 0x81 );
ModRM( 3, 0, to );
write16( from );
}
write16( from );
}
/* add imm16 to m16 */
void ADD16ItoM( uptr to, u16 from )
{
write8( 0x66 );
write8( 0x81 );
ModRM( 0, 0, DISP32 );
write32( MEMADDR(to, 6) );
write16( from );
if(from < 0x80)
{
write8( 0x83 );
ModRM( 0, 0, DISP32 );
write32( MEMADDR(to, 6) );
write8( from );
}
else
{
write8( 0x81 );
ModRM( 0, 0, DISP32 );
write32( MEMADDR(to, 6) );
write16( from );
}
}
/* add r16 to m16 */
@ -2286,13 +2328,20 @@ void AND64I32toM( uptr to, u32 from )
void AND32ItoR( x86IntRegType to, u32 from )
{
RexB(0,to);
if ( to == EAX ) {
write8( 0x25 );
} else {
write8( 0x81 );
ModRM( 3, 0x4, to );
if(from < 0x80)
{
AND32I8toR(to, (u8)from);
}
else
{
if ( to == EAX ) {
write8( 0x25 );
} else {
write8( 0x81 );
ModRM( 3, 0x4, to );
}
write32( from );
}
write32( from );
}
/* and sign ext imm8 to r32 */
@ -2307,10 +2356,17 @@ void AND32I8toR( x86IntRegType to, u8 from )
/* and imm32 to m32 */
void AND32ItoM( uptr to, u32 from )
{
write8( 0x81 );
ModRM( 0, 0x4, DISP32 );
write32( MEMADDR(to, 8) );
write32( from );
if(from < 0x80)
{
AND32I8toM(to, (u8)from);
}
else
{
write8( 0x81 );
ModRM( 0, 0x4, DISP32 );
write32( MEMADDR(to, 8) );
write32( from );
}
}
/* and sign ext imm8 to m32 */
@ -2360,24 +2416,38 @@ void AND16RtoR( x86IntRegType to, x86IntRegType from )
/* and imm16 to r16 */
void AND16ItoR( x86IntRegType to, u16 from )
{
write8(0x66);
RexB(0,to);
write8(0x66);
if ( to == EAX ) {
write8( 0x25 );
write16( from );
} else if ( from < 0x80 ) {
write8( 0x83 );
ModRM( 3, 0x4, to );
write8( from );
} else {
write8( 0x81 );
ModRM( 3, 0x4, to );
write16( from );
}
write16( from );
}
/* and imm16 to m16 */
void AND16ItoM( uptr to, u16 from )
{
write16( 0x8166 );
ModRM( 0, 0x4, DISP32 );
write32( MEMADDR(to, 6) );
write16( from );
write8(0x66);
if ( from < 0x80 ) {
write8( 0x83 );
ModRM( 0, 0x4, DISP32 );
write32( MEMADDR(to, 6) );
write8( from );
} else {
write8( 0x81 );
ModRM( 0, 0x4, DISP32 );
write32( MEMADDR(to, 6) );
write16( from );
}
}
/* and r16 to m16 */