AxibugEmuOnline/References/virtuanessrc097-master/NES/Mapper/Mapper222.cpp
2024-08-05 17:58:53 +08:00

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//////////////////////////////////////////////////////////////////////////
// Mapper222 //
//////////////////////////////////////////////////////////////////////////
void Mapper222::Reset()
{
SetPROM_32K_Bank( 0, 1, PROM_8K_SIZE-2, PROM_8K_SIZE-1 );
if( VROM_1K_SIZE ) {
SetVROM_8K_Bank( 0 );
}
SetVRAM_Mirror( VRAM_VMIRROR );
}
void Mapper222::Write( WORD addr, BYTE data )
{
switch( addr & 0xF003 ) {
case 0x8000:
SetPROM_8K_Bank( 4, data );
break;
case 0xA000:
SetPROM_8K_Bank( 5, data );
break;
case 0xB000:
SetVROM_1K_Bank( 0, data );
break;
case 0xB002:
SetVROM_1K_Bank( 1, data );
break;
case 0xC000:
SetVROM_1K_Bank( 2, data );
break;
case 0xC002:
SetVROM_1K_Bank( 3, data );
break;
case 0xD000:
SetVROM_1K_Bank( 4, data );
break;
case 0xD002:
SetVROM_1K_Bank( 5, data );
break;
case 0xE000:
SetVROM_1K_Bank( 6, data );
break;
case 0xE002:
SetVROM_1K_Bank( 7, data );
break;
}
}