76 lines
2.3 KiB
C#
76 lines
2.3 KiB
C#
////////////////////////////
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// Mapper113 PC-Sachen/Hacker //
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//////////////////////////////////////////////////////////////////////////
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using static VirtualNes.MMU;
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namespace VirtualNes.Core
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{
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public class Mapper113 : Mapper
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{
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public Mapper113(NES parent) : base(parent)
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{
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}
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public override void Reset()
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{
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// SetPROM_32K_Bank( 0, 1, PROM_8K_SIZE-2, PROM_8K_SIZE-1 );
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SetPROM_32K_Bank(0);
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SetVROM_8K_Bank(0);
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}
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//void Mapper113::WriteLow(WORD addr, BYTE data)
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public override void WriteLow(ushort addr, byte data)
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{
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//DEBUGOUT( "$%04X:$%02X L=%3d\n", addr, data, nes.GetScanline() );
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switch (addr)
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{
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case 0x4100:
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case 0x4111:
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case 0x4120:
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case 0x4194:
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case 0x4195:
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case 0x4900:
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if (nes.rom.GetPROM_CRC() == 0xA75AEDE5)
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{ // HES 6-in-1
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if ((data & 0x80) != 0)
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{
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SetVRAM_Mirror(VRAM_VMIRROR);
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}
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else
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{
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SetVRAM_Mirror(VRAM_HMIRROR);
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}
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}
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SetPROM_32K_Bank(data >> 3);
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SetVROM_8K_Bank(((data >> 3) & 0x08) + (data & 0x07));
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break;
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}
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}
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//void Mapper113::Write(WORD addr, BYTE data)
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public override void Write(ushort addr, byte data)
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{
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//DEBUGOUT( "$%04X:$%02X L=%3d\n", addr, data, nes.GetScanline() );
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switch (addr)
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{
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case 0x8008:
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case 0x8009:
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SetPROM_32K_Bank(data >> 3);
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SetVROM_8K_Bank(((data >> 3) & 0x08) + (data & 0x07));
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break;
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case 0x8E66:
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case 0x8E67:
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//SetVROM_8K_Bank((data & 0x07) ? 0 : 1);
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SetVROM_8K_Bank((data & 0x07) != 0 ? 0 : 1);
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break;
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case 0xE00A:
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SetVRAM_Mirror(VRAM_MIRROR4L);
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break;
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}
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}
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}
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}
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