AxibugEmuOnline/References/VirtuaNESex_src_191105/NES/Mapper/Mapper080.cpp
2024-08-05 17:58:53 +08:00

77 lines
1.5 KiB
C++

//////////////////////////////////////////////////////////////////////////
// Mapper080 Taito X1-005 //
//////////////////////////////////////////////////////////////////////////
void Mapper080::Reset()
{
SetPROM_32K_Bank( 0, 1, PROM_8K_SIZE-2, PROM_8K_SIZE-1 );
if( VROM_8K_SIZE ) {
SetVROM_8K_Bank( 0 );
}
}
void Mapper080::WriteLow( WORD addr, BYTE data )
{
switch( addr ) {
case 0x7EF0:
SetVROM_2K_Bank( 0, (data>>1)&0x3F );
if( PROM_8K_SIZE == 32 ) {
if( data & 0x80 ) {
SetVRAM_1K_Bank( 8, 1 );
SetVRAM_1K_Bank( 9, 1 );
} else {
SetVRAM_1K_Bank( 8, 0 );
SetVRAM_1K_Bank( 9, 0 );
}
}
break;
case 0x7EF1:
SetVROM_2K_Bank( 2, (data>>1)&0x3F );
if( PROM_8K_SIZE == 32 ) {
if( data & 0x80 ) {
SetVRAM_1K_Bank( 10, 1 );
SetVRAM_1K_Bank( 11, 1 );
} else {
SetVRAM_1K_Bank( 10, 0 );
SetVRAM_1K_Bank( 11, 0 );
}
}
break;
case 0x7EF2:
SetVROM_1K_Bank( 4, data );
break;
case 0x7EF3:
SetVROM_1K_Bank( 5, data );
break;
case 0x7EF4:
SetVROM_1K_Bank( 6, data );
break;
case 0x7EF5:
SetVROM_1K_Bank( 7, data );
break;
case 0x7EF6:
if( data & 0x01 ) SetVRAM_Mirror( VRAM_VMIRROR );
else SetVRAM_Mirror( VRAM_HMIRROR );
break;
case 0x7EFA:
case 0x7EFB:
SetPROM_8K_Bank( 4, data );
break;
case 0x7EFC:
case 0x7EFD:
SetPROM_8K_Bank( 5, data );
break;
case 0x7EFE:
case 0x7EFF:
SetPROM_8K_Bank( 6, data );
break;
default:
Mapper::WriteLow( addr, data );
break;
}
}