61 lines
1.3 KiB
C++
61 lines
1.3 KiB
C++
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//////////////////////////////////////////////////////////////////////////
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// Mapper046 Rumble Station //
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//////////////////////////////////////////////////////////////////////////
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void Mapper046::Reset()
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{
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reg[0] = 0;
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reg[1] = 0;
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reg[2] = 0;
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reg[3] = 0;
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SetBank();
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SetVRAM_Mirror( VRAM_VMIRROR );
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}
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void Mapper046::WriteLow( WORD addr, BYTE data )
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{
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reg[0] = data & 0x0F;
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reg[1] = (data & 0xF0)>>4;
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SetBank();
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}
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void Mapper046::Write( WORD addr, BYTE data )
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{
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reg[2] = data & 0x01;
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reg[3] = (data & 0x70)>>4;
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SetBank();
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}
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void Mapper046::SetBank()
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{
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SetPROM_8K_Bank( 4, reg[0]*8+reg[2]*4+0 );
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SetPROM_8K_Bank( 5, reg[0]*8+reg[2]*4+1 );
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SetPROM_8K_Bank( 6, reg[0]*8+reg[2]*4+2 );
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SetPROM_8K_Bank( 7, reg[0]*8+reg[2]*4+3 );
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SetVROM_1K_Bank( 0, reg[1]*64+reg[3]*8+0 );
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SetVROM_1K_Bank( 1, reg[1]*64+reg[3]*8+1 );
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SetVROM_1K_Bank( 2, reg[1]*64+reg[3]*8+2 );
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SetVROM_1K_Bank( 3, reg[1]*64+reg[3]*8+3 );
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SetVROM_1K_Bank( 4, reg[1]*64+reg[3]*8+4 );
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SetVROM_1K_Bank( 5, reg[1]*64+reg[3]*8+5 );
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SetVROM_1K_Bank( 6, reg[1]*64+reg[3]*8+6 );
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SetVROM_1K_Bank( 7, reg[1]*64+reg[3]*8+7 );
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}
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void Mapper046::SaveState( LPBYTE p )
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{
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p[ 0] = reg[0];
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p[ 1] = reg[1];
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p[ 2] = reg[2];
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p[ 3] = reg[3];
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}
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void Mapper046::LoadState( LPBYTE p )
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{
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reg[0] = p[ 0];
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reg[1] = p[ 1];
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reg[2] = p[ 2];
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reg[3] = p[ 3];
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}
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