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MMC5: Updated based on loopy's test results

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This commit is contained in:
Souryo 2017-04-23 19:26:56 -04:00
parent 4c38075c9e
commit 0468e7b9ed
1 changed files with 14 additions and 2 deletions
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16
Core/MMC5.h
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@ -139,13 +139,25 @@ private:
void SwitchChrBank(uint16_t reg, uint8_t value)
{
_chrBanks[reg - 0x5120] = value | (_chrUpperBits << 8);
_lastChrReg = reg;
if(_largeSprites) {
_lastChrReg = reg;
} else {
//Using 8x8 sprites resets the last written to bank logic
//Unsure about this part (hasn't been tested specifically, but would make sense)
_lastChrReg = 0;
}
UpdateChrBanks();
}
void UpdateChrBanks()
{
bool chrA = !_largeSprites || (_largeSprites && _spriteFetch) || (_lastVramOperationType != MemoryOperationType::PpuRenderingRead && (_lastChrReg <= 0x5127 || _extendedRamMode == 1));
if(!_largeSprites) {
//Using 8x8 sprites resets the last written to bank logic
_lastChrReg = 0;
}
bool chrA = !_largeSprites || (_largeSprites && _spriteFetch) || (_lastVramOperationType != MemoryOperationType::PpuRenderingRead && _lastChrReg <= 0x5127);
if(_chrMode == 0) {
SelectChrPage8x(0, _chrBanks[chrA ? 0x07 : 0x0B] << 3);
} else if(_chrMode == 1) {