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optimization for the clamping methods in the FPU recs. ClampValues2() was using a hack to make infinities always become positive; the new code doesn't do this since the real ps2 doesn't do it. 

git-svn-id: http://pcsx2-playground.googlecode.com/svn/trunk@56 a6443dda-0b58-4228-96e9-037be469359c
This commit is contained in:
cottonvibes 2008-08-26 03:10:38 +00:00 committed by Gregory Hainaut
parent d307bd6275
commit b6e7ff33fd
2 changed files with 12 additions and 5 deletions
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2
pcsx2/x86/iCore.cpp
View File

@ -179,7 +179,7 @@ int _getFreeXMMreg()
_freeXMMreg(tempi);
return tempi;
}
SysPrintf("*PCSX2*: VUrec ERROR\n");
SysPrintf("*PCSX2*: XMM Reg Allocation Error in _getFreeXMMreg()!\n");
return -1;
}

15
pcsx2/x86/iFPU.c
View File

@ -505,7 +505,6 @@ void recSQRT_S_(int info)
void recABS_S_(int info)
{
//AND32ItoM( (uptr)&fpuRegs.fpr[ _Fd_ ].f, 0x7fffffff ); // isn't this faster?
MOV32MtoR( EAX, (uptr)&fpuRegs.fpr[ _Fs_ ].f );
AND32ItoR( EAX, 0x7fffffff );
MOV32RtoM( (uptr)&fpuRegs.fpr[ _Fd_ ].f, EAX );
@ -519,7 +518,6 @@ void recMOV_S_(int info)
void recNEG_S_(int info)
{
//XOR32ItoM( (uptr)&fpuRegs.fpr[ _Fd_ ].f, 0x80000000 ); // isn't this faster?
MOV32MtoR( EAX,(uptr)&fpuRegs.fpr[ _Fs_ ].f );
XOR32ItoR( EAX, 0x80000000 );
MOV32RtoM( (uptr)&fpuRegs.fpr[ _Fd_ ].f, EAX );
@ -755,7 +753,10 @@ static PCSX2_ALIGNED16(u32 s_overflowmask[]) = {0x7f7fffff, 0x7f7fffff, 0x7f7fff
static u32 s_signbit = 0x80000000;
extern int g_VuNanHandling;
void ClampValues(regd){
void ClampValues(regd) {
SSE_MAXSS_M32_to_XMM(regd, (uptr)&g_minvals[0]);
SSE_MINSS_M32_to_XMM(regd, (uptr)&g_maxvals[0]);
/*
int t5reg = _allocTempXMMreg(XMMT_FPS, -1);
SSE_XORPS_XMM_to_XMM(t5reg, t5reg);
@ -767,10 +768,15 @@ void ClampValues(regd){
SSE_ANDPS_XMM_to_XMM(regd, t5reg);
SSE_MAXSS_M32_to_XMM(regd, (uptr)&g_minvals[0]);
SSE_MINSS_M32_to_XMM(regd, (uptr)&g_maxvals[0]);
_freeXMMreg(t5reg);
*/
}
void ClampValues2(regd){
void ClampValues2(regd) {
SSE_MAXSS_M32_to_XMM(regd, (uptr)&g_minvals[0]);
SSE_MINSS_M32_to_XMM(regd, (uptr)&g_maxvals[0]);
/*
int t5reg = _allocTempXMMreg(XMMT_FPS, -1);
SSE_XORPS_XMM_to_XMM(t5reg, t5reg);
@ -785,6 +791,7 @@ void ClampValues2(regd){
SSE_MINSS_M32_to_XMM(regd, (uptr)&g_maxvals[0]);
_freeXMMreg(t5reg);
*/
}
static void (*recComOpXMM_to_XMM[] )(x86SSERegType, x86SSERegType) = {