AxibugEmuOnline/virtuanessrc097-master/NES/Mapper/Mapper097.cpp

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//////////////////////////////////////////////////////////////////////////
// Mapper097 Irem 74161 //
//////////////////////////////////////////////////////////////////////////
void Mapper097::Reset()
{
SetPROM_32K_Bank( PROM_8K_SIZE-2, PROM_8K_SIZE-1, 0, 1 );
if( VROM_8K_SIZE ) {
SetVROM_8K_Bank( 0 );
}
}
void Mapper097::Write( WORD addr, BYTE data )
{
if( addr < 0xC000 ) {
SetPROM_16K_Bank( 6, data & 0x0F );
if( data & 0x80 ) SetVRAM_Mirror( VRAM_VMIRROR );
else SetVRAM_Mirror( VRAM_HMIRROR );
}
}