AxibugEmuOnline/virtuanessrc097-master/NES/Mapper/Mapper229.cpp

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//////////////////////////////////////////////////////////////////////////
// Mapper229 31-in-1 //
//////////////////////////////////////////////////////////////////////////
void Mapper229::Reset()
{
SetPROM_32K_Bank( 0 );
SetVROM_8K_Bank( 0 );
}
void Mapper229::Write( WORD addr, BYTE data )
{
if( addr & 0x001E ) {
BYTE prg = addr&0x001F;
SetPROM_8K_Bank( 4, prg*2+0 );
SetPROM_8K_Bank( 5, prg*2+1 );
SetPROM_8K_Bank( 6, prg*2+0 );
SetPROM_8K_Bank( 7, prg*2+1 );
SetVROM_8K_Bank( addr & 0x0FFF );
} else {
SetPROM_32K_Bank( 0 );
SetVROM_8K_Bank( 0 );
}
if( addr & 0x0020 ) {
SetVRAM_Mirror( VRAM_HMIRROR );
} else {
SetVRAM_Mirror( VRAM_VMIRROR );
}
}