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Add submapper 1 support to Coolboy (mapper 268) #79

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Mar 12, 2022
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Add submapper 1 support to Coolboy (mapper 268) #79

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4 changes: 2 additions & 2 deletions Core/MMC3_Coolboy.h
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ class MMC3_Coolboy : public MMC3
uint8_t _exRegs[4];

protected:
uint16_t RegisterStartAddress() override { return 0x6000; }
uint16_t RegisterStartAddress() override { return _romInfo.SubMapperID == 1 ? 0x5000 : 0x6000; }
uint32_t GetChrRamSize() override { return 0x40000; }

void Reset(bool softReset) override
Expand Down Expand Up @@ -95,7 +95,7 @@ class MMC3_Coolboy : public MMC3
WritePrgRam(addr, value);
}

if((_exRegs[3] & 0x90) != 0x80) {
if(((_romInfo.SubMapperID != 1) || (addr < 0x6000)) && (_exRegs[3] & 0x90) != 0x80) {
_exRegs[addr & 0x03] = value;
UpdateState();
}
Expand Down