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Mapper 14: Fixed some CHR banking issues

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This commit is contained in:
Sour 2018-06-17 16:42:49 -04:00
parent 2929a7c738
commit c07a995df4
1 changed files with 13 additions and 13 deletions
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26
Core/MMC3_14.h
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@ -29,20 +29,20 @@ protected:
Stream(_mode, _vrcMirroring, prgRegs, chrRegs);
}
virtual void SelectCHRPage(uint16_t slot, uint16_t page, ChrMemoryType memoryType = ChrMemoryType::Default) override
void UpdateChrMapping() override
{
if(_mode & 0x02) {
if(slot <= 3) {
if(!_chrMode && (_mode & 0x80) || _chrMode && slot <= 1 && (_mode & 0x20) || _chrMode && slot >= 2 && (_mode & 0x08)) {
page |= 0x100;
}
} else {
if(_chrMode && (_mode & 0x80) || !_chrMode && slot <= 5 && (_mode & 0x20) || !_chrMode && slot >= 6 && (_mode & 0x08)) {
page |= 0x100;
}
}
}
MMC3::SelectCHRPage(slot, page, memoryType);
int slotSwap = (GetState().Reg8000 & 0x80) ? 4 : 0;
int outerBank0 = (_mode & 0x08) ? 0x100 : 0;
int outerBank1 = (_mode & 0x20) ? 0x100 : 0;
int outerBank2 = (_mode & 0x80) ? 0x100 : 0;
SelectCHRPage(0 ^ slotSwap, outerBank0 | (_registers[0] & (~1)));
SelectCHRPage(1 ^ slotSwap, outerBank0 | _registers[0] | 1);
SelectCHRPage(2 ^ slotSwap, outerBank0 | (_registers[1] & (~1)));
SelectCHRPage(3 ^ slotSwap, outerBank0 | _registers[1] | 1);
SelectCHRPage(4 ^ slotSwap, outerBank1 | _registers[2]);
SelectCHRPage(5 ^ slotSwap, outerBank1 | _registers[3]);
SelectCHRPage(6 ^ slotSwap, outerBank2 | _registers[4]);
SelectCHRPage(7 ^ slotSwap, outerBank2 | _registers[5]);
}
void UpdateVrcState()