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GIF Unit: Stop multiple fires of FINISH IRQ's 

- Fixes Indiecar Series 2005.
- Savestate bump was required, sorry, not sorry :P
This commit is contained in:
refractionpcsx2 2015-08-12 02:16:23 +01:00
parent 98c74879bf
commit 68de5228a8
4 changed files with 16 additions and 3 deletions
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5
pcsx2/GS.cpp
View File

@ -108,7 +108,10 @@ static __fi void gsCSRwrite( const tGS_CSR& csr )
gifUnit.Execute(false, true); // Resume paused transfers
}
if(csr.FINISH) CSRreg.FINISH = false;
if (csr.FINISH) {
CSRreg.FINISH = false;
gifUnit.gsFINISH.gsFINISHFired = false; //Clear the previously fired FINISH (YS, Indiecar 2005, MGS3)
}
if(csr.HSINT) CSRreg.HSINT = false;
if(csr.VSINT) CSRreg.VSINT = false;
if(csr.EDWINT) CSRreg.EDWINT = false;

4
pcsx2/Gif_Unit.cpp
View File

@ -97,8 +97,9 @@ bool Gif_HandlerAD_Debug(u8* pMem) {
}
void Gif_FinishIRQ() {
if (CSRreg.FINISH && !(GSIMR&0x200)) {
if (CSRreg.FINISH && !(GSIMR & 0x200) && gifUnit.gsFINISH.gsFINISHFired == false) {
gsIrq();
gifUnit.gsFINISH.gsFINISHFired = true;
}
}
@ -163,6 +164,7 @@ void SaveStateBase::gifFreeze() {
Freeze(mtvuMode);
Freeze(gifUnit.stat);
Freeze(gifUnit.gsSIGNAL);
Freeze(gifUnit.gsFINISH);
Freeze(gifUnit.lastTranType);
gifPathFreeze(GIF_PATH_1);
gifPathFreeze(GIF_PATH_2);

8
pcsx2/Gif_Unit.h
View File

@ -133,6 +133,12 @@ struct GS_SIGNAL {
void Reset() { memzero(*this); }
};
struct GS_FINISH {
bool gsFINISHFired;
void Reset() { memzero(*this); }
};
static __fi void incTag(u32& offset, u32& size, u32 incAmount) {
size += incAmount;
offset += incAmount;
@ -413,6 +419,7 @@ struct Gif_Path {
struct Gif_Unit {
Gif_Path gifPath[3];
GS_SIGNAL gsSIGNAL; // Stalling Signal
GS_FINISH gsFINISH; // Finish Signal
tGIF_STAT& stat;
GIF_TRANSFER_TYPE lastTranType; // Last Transfer Type
@ -427,6 +434,7 @@ struct Gif_Unit {
GUNIT_WARN(Color_Red, "Gif Unit Reset!!! [soft=%d]", softReset);
ResetRegs();
gsSIGNAL.Reset();
gsFINISH.Reset();
gifPath[0].Reset(softReset);
gifPath[1].Reset(softReset);
gifPath[2].Reset(softReset);

2
pcsx2/SaveState.h
View File

@ -24,7 +24,7 @@
// the lower 16 bit value. IF the change is breaking of all compatibility with old
// states, increment the upper 16 bit value, and clear the lower 16 bits to 0.
static const u32 g_SaveVersion = (0x9A0A << 16) | 0x0000;
static const u32 g_SaveVersion = (0x9A0B << 16) | 0x0000;
// this function is meant to be used in the place of GSfreeze, and provides a safe layer
// between the GS saving function and the MTGS's needs. :)