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Fixed a minor issue in MADDiq/MADDAiq VU opcode. 

(when _Fs_ == 0)

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@578 96395faa-99c1-11dd-bbfe-3dabce05a288
This commit is contained in:
tmkkmac 2009-02-23 17:08:33 +00:00
parent cf2919cc5a
commit ad5c6cff48
1 changed files with 28 additions and 18 deletions
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32
pcsx2/x86/iVUmicroUpper.cpp
View File

@ -1808,21 +1808,21 @@ void recVUMI_MADD_iq_toD(VURegs *VU, uptr addr, int regd, int info)
}
if( _X_Y_Z_W == 8 ) {
if( regd == EEREC_ACC ) {
if( _Fs_ == 0 ) {
// add addr to w
SSE_SHUFPS_XMM_to_XMM(regd, regd, 0x27);
SSE_ADDSS_M32_to_XMM(regd, addr);
SSE_SHUFPS_XMM_to_XMM(regd, regd, 0x27);
// do nothing if regd == ACC (ACCx <= ACCx + 0.0 * *addr)
if( regd != EEREC_ACC ) {
SSE_MOVSS_XMM_to_XMM(regd, EEREC_ACC);
}
else {
return;
}
if( regd == EEREC_ACC ) {
assert( EEREC_TEMP < XMMREGS );
SSE_MOVSS_M32_to_XMM(EEREC_TEMP, addr);
SSE_MULSS_XMM_to_XMM(EEREC_TEMP, EEREC_S);
if (CHECK_VU_EXTRA_OVERFLOW) { vuFloat_useEAX( info, EEREC_TEMP, 8); }
SSE_ADDSS_XMM_to_XMM(regd, EEREC_TEMP);
}
}
else if( regd == EEREC_S ) {
SSE_MULSS_M32_to_XMM(regd, addr);
if (CHECK_VU_EXTRA_OVERFLOW) { vuFloat_useEAX( info, regd, _X_Y_Z_W ); }
@ -1837,11 +1837,21 @@ void recVUMI_MADD_iq_toD(VURegs *VU, uptr addr, int regd, int info)
}
else {
if( _Fs_ == 0 ) {
// add addr to w
if( regd == EEREC_ACC ) { // ACCxyz is unchanged, ACCw <= ACCw + *addr
if( _W ) { // if _W is zero, do nothing
SSE_MOVSS_M32_to_XMM(EEREC_TEMP, addr); // { *addr, 0, 0, 0 }
SSE_SHUFPS_XMM_to_XMM(EEREC_TEMP, EEREC_TEMP, 0x27); // { 0, 0, 0, *addr }
SSE_ADDPS_XMM_to_XMM(regd, EEREC_TEMP); // { ACCx, ACCy, ACCz, ACCw + *addr }
}
}
else { // DESTxyz <= ACCxyz, DESTw <= ACCw + *addr
if( _W ) {
SSE_SHUFPS_XMM_to_XMM(regd, regd, 0x27);
SSE_ADDSS_M32_to_XMM(regd, addr);
SSE_SHUFPS_XMM_to_XMM(regd, regd, 0x27);
SSE_MOVSS_M32_to_XMM(EEREC_TEMP, addr); // { *addr, 0, 0, 0 }
SSE_SHUFPS_XMM_to_XMM(EEREC_TEMP, EEREC_TEMP, 0x27); // { 0, 0, 0, *addr }
SSE_ADDPS_XMM_to_XMM(EEREC_TEMP, EEREC_ACC); // { ACCx, ACCy, ACCz, ACCw + *addr }
}
else SSE_MOVAPS_XMM_to_XMM(EEREC_TEMP, EEREC_ACC);
VU_MERGE_REGS(regd, EEREC_TEMP);
}
return;