31 lines
695 B
C++
31 lines
695 B
C++
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/////////////////////////////////////////////////////////////////////
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// Mapper 232
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void NES_mapper232::Reset()
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{
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// set CPU bank pointers
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set_CPU_banks(0,1,num_8k_ROM_banks-2,num_8k_ROM_banks-1);
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regs[0] = 0x0C;
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regs[1] = 0x00;
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}
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void NES_mapper232::MemoryWrite(uint32 addr, uint8 data)
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{
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if(addr == 0x9000)
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{
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regs[0] = (data & 0x18) >> 1;
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}
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else if(0xA000 <= addr && addr <= 0xFFFF)
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{
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regs[1] = data & 0x03;
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}
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set_CPU_bank4((regs[0] | regs[1]) * 2 + 0);
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set_CPU_bank5((regs[0] | regs[1]) * 2 + 1);
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set_CPU_bank6((regs[0] | 0x03) * 2 + 0);
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set_CPU_bank7((regs[0] | 0x03) * 2 + 1);
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}
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/////////////////////////////////////////////////////////////////////
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