49 lines
970 B
C++
49 lines
970 B
C++
//////////////////////////////////////////////////////////////////////////
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// Mapper202 150-in-1 //
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//////////////////////////////////////////////////////////////////////////
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void Mapper202::Reset()
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{
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SetPROM_16K_Bank( 4, 6 );
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SetPROM_16K_Bank( 6, 7 );
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if( VROM_1K_SIZE ) {
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SetVROM_8K_Bank( 0 );
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}
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}
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void Mapper202::ExWrite( WORD addr, BYTE data )
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{
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if( addr >= 0x4020 ) {
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WriteSub( addr, data );
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}
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}
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void Mapper202::WriteLow( WORD addr, BYTE data )
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{
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WriteSub( addr, data );
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}
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void Mapper202::Write( WORD addr, BYTE data )
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{
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WriteSub( addr, data );
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}
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void Mapper202::WriteSub( WORD addr, BYTE data )
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{
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INT bank = (addr>>1) & 0x07;
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SetPROM_16K_Bank( 4, bank );
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if( (addr & 0x0C) == 0x0C ) {
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SetPROM_16K_Bank( 6, bank+1 );
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} else {
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SetPROM_16K_Bank( 6, bank );
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}
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SetVROM_8K_Bank( bank );
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if( addr & 0x01 ) {
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SetVRAM_Mirror( VRAM_HMIRROR );
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} else {
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SetVRAM_Mirror( VRAM_VMIRROR );
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}
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}
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