39 lines
923 B
C++
39 lines
923 B
C++
//////////////////////////////////////////////////////////////////////////
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// Mapper060 //
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//////////////////////////////////////////////////////////////////////////
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void Mapper060::Reset()
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{
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patch = 0;
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DWORD crc = nes->rom->GetPROM_CRC();
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if( crc == 0xf9c484a0 ) { // Reset Based 4-in-1(Unl)
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SetPROM_16K_Bank( 4, game_sel );
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SetPROM_16K_Bank( 6, game_sel );
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SetVROM_8K_Bank( game_sel );
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game_sel++;
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game_sel &= 3;
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} else {
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patch = 1;
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SetPROM_32K_Bank( 0 );
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SetVROM_8K_Bank( 0 );
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}
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}
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void Mapper060::Write( WORD addr, BYTE data )
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{
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if( patch ) {
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if( addr & 0x80 ) {
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SetPROM_16K_Bank( 4, (addr&0x70)>>4 );
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SetPROM_16K_Bank( 6, (addr&0x70)>>4 );
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} else {
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SetPROM_32K_Bank( (addr&0x70)>>5 );
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}
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SetVROM_8K_Bank( addr&0x07 );
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if( data & 0x08 ) SetVRAM_Mirror( VRAM_VMIRROR );
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else SetVRAM_Mirror( VRAM_HMIRROR );
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}
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}
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