234 lines
11 KiB
C#
234 lines
11 KiB
C#
using System;
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namespace VirtualNes.Core
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{
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public abstract class Mapper
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{
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protected NES nes;
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public Mapper(NES parent)
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{
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nes = parent;
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}
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public virtual void Dispose() { }
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public abstract void Reset();
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// $8000-$FFFF Memory write
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public virtual void Write(ushort addr, byte data) { }
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// $8000-$FFFF Memory read(Dummy)
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public virtual void Read(ushort addr, byte data) { }
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// $4100-$7FFF Lower Memory read/write
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public virtual byte ReadLow(ushort addr)
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{
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// $6000-$7FFF WRAM
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if (addr >= 0x6000 && addr <= 0x7FFF)
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{
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return MMU.CPU_MEM_BANK[addr >> 13][addr & 0x1FFF];
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}
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return (byte)(addr >> 8);
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}
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public virtual void WriteLow(ushort addr, byte data)
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{
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if (addr >= 0x6000 && addr <= 0x7FFF)
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{
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MMU.CPU_MEM_BANK[addr >> 13][addr & 0x1FFF] = data;
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}
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}
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// $4018-$40FF Extention register read/write
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public virtual byte ExRead(ushort addr) { return 0x00; }
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public virtual void ExWrite(ushort addr, byte data) { }
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public virtual byte ExCmdRead(EXCMDRD cmd) { return 0x00; }
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public virtual void ExCmdWrite(EXCMDWR cmd, byte data) { }
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// H sync/V sync/Clock sync
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public virtual void HSync(int scanline) { }
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public virtual void VSync() { }
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public virtual void Clock(int cycles) { }
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// PPU address bus latch
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public virtual void PPU_Latch(ushort addr) { }
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// PPU Character latch
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public virtual void PPU_ChrLatch(ushort addr) { }
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// PPU Extension character/palette
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public virtual void PPU_ExtLatchX(int x) { }
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public virtual void PPU_ExtLatch(ushort addr, ref byte chr_l, ref byte chr_h, ref byte attr) { }
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// For State save
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public virtual bool IsStateSave() { return false; }
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public virtual void SaveState(byte[] p) { }
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public virtual void LoadState(byte[] p) { }
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// Extension commands
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// For ExCmdRead command
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public enum EXCMDRD
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{
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EXCMDRD_NONE = 0,
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EXCMDRD_DISKACCESS,
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}
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// For ExCmdWrite command
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public enum EXCMDWR
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{
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EXCMDWR_NONE = 0,
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EXCMDWR_DISKINSERT,
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EXCMDWR_DISKEJECT,
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}
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public static Mapper CreateMapper(NES parent, int no)
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{
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//todo : 实现加载mapper
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switch (no)
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{
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case 4: return new Mapper004(parent);
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case 16: return new Mapper016(parent);
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case 17: return new Mapper017(parent);
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case 18: return new Mapper018(parent);
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case 19: return new Mapper019(parent);
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case 21: return new Mapper021(parent);
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case 22: return new Mapper022(parent);
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case 23: return new Mapper023(parent);
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case 24: return new Mapper024(parent);
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case 25: return new Mapper025(parent);
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case 26: return new Mapper026(parent);
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case 27: return new Mapper027(parent);
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case 32: return new Mapper032(parent);
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case 33: return new Mapper033(parent);
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case 34: return new Mapper034(parent);
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case 35: return new Mapper035(parent);
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case 40: return new Mapper040(parent);
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case 41: return new Mapper041(parent);
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case 42: return new Mapper042(parent);
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case 43: return new Mapper043(parent);
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case 44: return new Mapper044(parent);
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case 45: return new Mapper045(parent);
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case 46: return new Mapper046(parent);
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case 47: return new Mapper047(parent);
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case 48: return new Mapper048(parent);
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case 50: return new Mapper050(parent);
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case 51: return new Mapper051(parent);
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case 57: return new Mapper057(parent);
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case 58: return new Mapper058(parent);
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case 60: return new Mapper060(parent);
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case 61: return new Mapper061(parent);
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case 62: return new Mapper062(parent);
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case 64: return new Mapper064(parent);
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case 65: return new Mapper065(parent);
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case 66: return new Mapper066(parent);
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case 67: return new Mapper067(parent);
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case 68: return new Mapper068(parent);
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case 69: return new Mapper069(parent);
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case 70: return new Mapper070(parent);
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case 71: return new Mapper071(parent);
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case 72: return new Mapper072(parent);
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case 73: return new Mapper073(parent);
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case 74: return new Mapper074(parent);
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case 75: return new Mapper075(parent);
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case 76: return new Mapper076(parent);
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case 77: return new Mapper077(parent);
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case 78: return new Mapper078(parent);
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case 79: return new Mapper079(parent);
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case 80: return new Mapper080(parent);
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case 82: return new Mapper082(parent);
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case 83: return new Mapper083(parent);
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case 85: return new Mapper085(parent);
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case 86: return new Mapper086(parent);
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case 87: return new Mapper087(parent);
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case 88: return new Mapper088(parent);
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case 89: return new Mapper089(parent);
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case 90: return new Mapper090(parent);
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case 91: return new Mapper091(parent);
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case 92: return new Mapper092(parent);
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case 93: return new Mapper093(parent);
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case 94: return new Mapper094(parent);
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case 95: return new Mapper095(parent);
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case 96: return new Mapper096(parent);
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case 97: return new Mapper097(parent);
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case 99: return new Mapper099(parent);
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case 100: return new Mapper100(parent);
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case 101: return new Mapper101(parent);
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case 105: return new Mapper105(parent);
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case 108: return new Mapper108(parent);
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case 109: return new Mapper109(parent);
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case 110: return new Mapper110(parent);
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case 111: return new Mapper111(parent);
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case 112: return new Mapper112(parent);
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case 113: return new Mapper113(parent);
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case 114: return new Mapper114(parent);
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case 115: return new Mapper115(parent);
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case 116: return new Mapper116(parent);
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case 117: return new Mapper117(parent);
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case 118: return new Mapper118(parent);
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case 119: return new Mapper119(parent);
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case 122: return new Mapper122(parent);
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case 133: return new Mapper133(parent);
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case 134: return new Mapper134(parent);
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case 135: return new Mapper135(parent);
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case 140: return new Mapper140(parent);
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case 142: return new Mapper142(parent);
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case 151: return new Mapper151(parent);
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case 160: return new Mapper160(parent);
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case 162: return new Mapper162(parent);
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case 163: return new Mapper163(parent);
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case 164: return new Mapper164(parent);
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case 165: return new Mapper165(parent);
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case 167: return new Mapper167(parent);
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case 175: return new Mapper175(parent);
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case 176: return new Mapper176(parent);
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case 178: return new Mapper178(parent);
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case 180: return new Mapper180(parent);
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case 181: return new Mapper181(parent);
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case 182: return new Mapper182(parent);
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case 183: return new Mapper183(parent);
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case 185: return new Mapper185(parent);
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case 187: return new Mapper187(parent);
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case 188: return new Mapper188(parent);
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case 189: return new Mapper189(parent);
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case 190: return new Mapper190(parent);
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case 191: return new Mapper191(parent);
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case 192: return new Mapper192(parent);
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case 193: return new Mapper193(parent);
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case 194: return new Mapper194(parent);
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case 195: return new Mapper195(parent);
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case 198: return new Mapper198(parent);
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case 199: return new Mapper199(parent);
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case 200: return new Mapper200(parent);
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case 201: return new Mapper201(parent);
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case 202: return new Mapper202(parent);
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case 216: return new Mapper216(parent);
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case 222: return new Mapper222(parent);
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case 225: return new Mapper225(parent);
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case 226: return new Mapper226(parent);
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case 227: return new Mapper227(parent);
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case 228: return new Mapper228(parent);
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case 229: return new Mapper229(parent);
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case 230: return new Mapper230(parent);
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case 231: return new Mapper231(parent);
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case 232: return new Mapper232(parent);
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case 233: return new Mapper233(parent);
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case 234: return new Mapper234(parent);
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case 235: return new Mapper235(parent);
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case 236: return new Mapper236(parent);
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case 240: return new Mapper240(parent);
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case 241: return new Mapper241(parent);
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case 242: return new Mapper242(parent);
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case 243: return new Mapper243(parent);
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case 244: return new Mapper244(parent);
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case 245: return new Mapper245(parent);
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case 246: return new Mapper246(parent);
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case 248: return new Mapper248(parent);
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case 249: return new Mapper249(parent);
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case 251: return new Mapper251(parent);
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case 252: return new Mapper252(parent);
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case 254: return new Mapper254(parent);
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case 255: return new Mapper255(parent);
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default:
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throw new NotImplementedException($"Mapper#{no:000} is not Impl");
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}
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}
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}
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}
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