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microVU: changed flag handling algorithms some more... 

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@966 96395faa-99c1-11dd-bbfe-3dabce05a288
This commit is contained in:
cottonvibes 2009-04-13 03:46:19 +00:00
parent c43412948f
commit 557564edc2
1 changed files with 40 additions and 15 deletions
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55
pcsx2/x86/microVU_Compile.inl
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@ -88,35 +88,60 @@ microVUt(void) mVUsetFlags(int* bStatus, int* bMac) {
}
// Status/Mac Flags Setup Code
int xStatus = 0; // Status Instance starts at #0 on every block
int xMac = 0; // Mac Instance starts at #0 on every block
int pStatus = 0;
int pMac = 0;
int xStatus = 8; // Status Instance starts at #0 on every block ((8&3) == 0)
int xMac = 8; // Mac Instance starts at #0 on every block ((8&3) == 0)
int pStatus = 3;
int pMac = 3;
int yStatus = 0;
int xS = 0, yS = 1, zS = 0;
int xM = 0, yM = 1, zM = 0;
int xCount = mVUcount; // Backup count
mVUcount = 0;
iPC = mVUstartPC;
for (int i = 0; i < xCount; i++) {
if ((xCount - i) > aCount) mVUstatusFlagOp<vuIndex>(); // Don't Optimize out on the last ~4+ instructions
if (doStatus||isFSSET||doDivFlag) { mVUinfo |= xStatus << 12; } // _fsInstance
if (doMac) { mVUinfo |= xMac << 10; } // _fmInstance
pStatus = (xStatus + ((mVUstall > 3) ? 3 : mVUstall)) & 3;
pMac = (xMac + ((mVUstall > 3) ? 3 : mVUstall)) & 3;
mVUinfo |= pStatus << 18; // _fvsInstance
mVUinfo |= pMac << 16; // _fvmInstance
if (doStatus||isFSSET||doDivFlag) { xStatus = (xStatus+1) & 3; }
if (doMac) { xMac = (xMac+1) & 3; }
if (doStatus||isFSSET||doDivFlag) { mVUinfo |= (xStatus&3) << 12; } // _fsInstance
if (doMac) { mVUinfo |= (xMac&3) << 10; } // _fmInstance
yS += (mVUstall > 3) ? 3 : mVUstall;
if (yS > zS) {
pStatus += (yS-zS);
if (pStatus >= xStatus) pStatus = (xStatus-1);
zS++;
xS = (yS-zS);
zS = yS;
yS -= xS;
}
yS++;
yM += (mVUstall > 3) ? 3 : mVUstall;
if (yM > zM) {
pMac += (yM-zM);
if (pMac >= xMac) pMac = (xMac-1);
zM++;
xM = (yM-zM);
zM = yM;
yM -= xM;
}
yM++;
mVUinfo |= (pStatus&3) << 18; // _fvsInstance
mVUinfo |= (pMac&3) << 16; // _fvmInstance
if (doStatus||isFSSET||doDivFlag) { xStatus = (xStatus+1); }
if (doMac) { xMac = (xMac+1); }
incPC2(2);
}
mVUcount = xCount; // Restore count
// Setup Last 4 instances of Status/Mac flags (needed for accurate block linking)
iPC = endPC;
for (int i = 3, int j = 3, int ii = 1, int jj = 3; aCount > 0; ii++, aCount--) {
for (int i = 3, int j = 3, int ii = 1, int jj = 1; aCount > 0; ii++, jj++, aCount--) {
if ((doStatus||isFSSET||doDivFlag) && (i >= 0)) {
for (; (ii > 0 && i >= 0); ii--) { xStatus = (xStatus-1) & 3; bStatus[i] = xStatus; i--; }
for (; (ii > 0 && i >= 0); i--, ii--) { xStatus = (xStatus-1) & 3; bStatus[i] = xStatus; }
}
if (doMac && (j >= 0)) {
for (; (jj > 0 && j >= 0); jj--) { xMac = (xMac-1) & 3; bMac[i] = xMac; j--; }
for (; (jj > 0 && j >= 0); j--, jj--) { xMac = (xMac-1) & 3; bMac[i] = xMac; }
}
incPC2(-2);
}