32 lines
720 B
C++
32 lines
720 B
C++
#ifdef _NES_MAPPER_CPP_
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/////////////////////////////////////////////////////////////////////
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// Mapper 122
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void NES_mapper122::Reset()
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{
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// set CPU bank pointers
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set_CPU_banks(0,1,2,3);
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}
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void NES_mapper122::MemoryWriteSaveRAM(uint32 addr, uint8 data)
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{
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if(addr = 0x6000)
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{
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uint8 chr_bank0 = data & 0x07;
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uint8 chr_bank1 = (data & 0x70) >> 4;
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set_PPU_bank0(chr_bank0*4+0);
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set_PPU_bank1(chr_bank0*4+1);
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set_PPU_bank2(chr_bank0*4+2);
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set_PPU_bank3(chr_bank0*4+3);
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set_PPU_bank4(chr_bank1*4+0);
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set_PPU_bank5(chr_bank1*4+1);
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set_PPU_bank6(chr_bank1*4+2);
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set_PPU_bank7(chr_bank1*4+3);
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}
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}
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/////////////////////////////////////////////////////////////////////
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#endif
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