239 lines
8.2 KiB
C#
239 lines
8.2 KiB
C#
//////////////////////////////////////////////////////////////////////////
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// Mapper176 ShuQiYu / HengGe / WaiXing //
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//////////////////////////////////////////////////////////////////////////
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using static VirtualNes.MMU;
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using static VirtualNes.Core.CPU;
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using INT = System.Int32;
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using BYTE = System.Byte;
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using System;
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namespace VirtualNes.Core
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{
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public class Mapper176 : Mapper
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{
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BYTE reg5000;
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BYTE reg5001;
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BYTE reg5010;
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BYTE reg5011;
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BYTE reg5013;
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BYTE reg5FF1;
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BYTE reg5FF2;
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BYTE we_sram;
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BYTE SBW, sp_rom;
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public Mapper176(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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if (PROM_16K_SIZE > 32)
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{
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SetPROM_32K_Bank(0, 1, (PROM_8K_SIZE / 2) - 2, (PROM_8K_SIZE / 2) - 1); //For 1M byte Cartridge
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}
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else
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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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}
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// SetPROM_32K_Bank( PROM_8K_SIZE-4, PROM_8K_SIZE-3, PROM_8K_SIZE-2, PROM_8K_SIZE-1 );
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if (VROM_1K_SIZE!=0) SetVROM_8K_Bank(0);
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reg5000 = 0;
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reg5001 = 0;
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reg5010 = 0;
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reg5011 = 0;
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reg5013 = 0;
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reg5FF1 = 0;
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reg5FF2 = 0;
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we_sram = 0;
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SBW = 0;
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sp_rom = 0;
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uint crc = nes.rom.GetPROM_CRC();
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if (crc == 0x095D8678 //[ES-0122] Shuang Yue Zhuan (C)
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|| crc == 0xD5F7AAEF)
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{ //[ES-XXXX] Shen Feng Jian (C)
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sp_rom = 1;
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nes.SetSAVERAM_SIZE(32 * 1024);
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}
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/*
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crc == 0x416C07A1 //[ES-1006] Meng Huan Zhi Xing IV (C) & WXN-梦幻之星 √
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crc == 0x94782FBD //[ES-1057] San Guo Zhi - Xiong Ba Tian Xia (C)
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crc == 0xF9863ADF //[ES-1066] Xi Chu Ba Wang (C)
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crc == 0xB511C04B //[ES-1071] San Xia Wu Yi (C)
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crc == 0x1923A8C5 //[ES-1087] Shui Hu Shen Shou (C) & WXN-水浒神兽(fix) √
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crc == 0x095D8678 //[ES-0122] Shuang Yue Zhuan (C)
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crc == 0x8f6ab5ac //WXN-三国忠烈传 √
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crc == 0x99051cb5 //WXN-雄霸天下 √
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crc == 0xf29c8186 //WXN-大富翁2-上海大亨 √
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crc == 0xc768098b //WXN-三侠五义 √
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crc == 0x49f22159 //WXN-超级大富翁 √
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crc == 0xf354d847 //WXN-格兰帝亚 √
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crc == 0x5ee2ef97 //WXN-帝国时代(fix) √
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crc == 0x977d22c3 //WXN-破釜沉舟(fix) √
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crc == 0xf1d803f3 //WXN-西楚霸王(fix) √
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crc == 0x85dd49b6 //WXN-口袋金(fix) √
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crc == 0x97b82f53 //WXN-爆笑三国(fix) √
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crc == 0xce2ea530 //WXN-宠物翡翠(fix) √
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*/
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}
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//BYTE Mapper176::ReadLow(WORD addr)
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public override byte ReadLow(ushort addr)
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{
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if (sp_rom == 1)
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{
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if (addr >= 0x6000)
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{
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switch (we_sram)
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{
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case 0xE4:
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case 0xEC: return WRAM[(addr & 0x1FFF) + 0x0000];
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case 0xE5:
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case 0xED: return WRAM[(addr & 0x1FFF) + 0x2000];
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case 0xE6:
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case 0xEE: return WRAM[(addr & 0x1FFF) + 0x4000];
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case 0xE7:
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case 0xEF: return WRAM[(addr & 0x1FFF) + 0x6000];
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default: return CPU_MEM_BANK[addr >> 13][addr & 0x1FFF];
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}
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}
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}
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return base.ReadLow(addr);
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}
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//void Mapper176::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("Address=%04X Data=%02X\n", addr&0xFFFF, data&0xFF );
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switch (addr)
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{
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case 0x5000:
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reg5000 = data;
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break;
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case 0x5001: //[ES-1006] Meng Huan Zhi Xing IV (C)
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reg5001 = data;
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if (SBW!=0) SetPROM_32K_Bank(reg5001);
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break;
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case 0x5010:
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reg5010 = data;
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if (reg5010 == 0x24) SBW = 1;
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break;
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case 0x5011:
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reg5011 = (byte)(data >> 1);
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if (SBW!=0) SetPROM_32K_Bank(reg5011);
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break;
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case 0x5013:
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reg5013 = data;
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break;
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case 0x5ff1:
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reg5FF1 = (byte)(data >> 1);
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SetPROM_32K_Bank(reg5FF1);
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break;
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case 0x5ff2:
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reg5FF2 = data;
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SetVROM_8K_Bank(reg5FF2);
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break;
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}
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if (sp_rom == 1)
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{
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if (addr >= 0x6000)
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{
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switch (we_sram)
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{
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case 0xE4: //CPU_MEM_BANK
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case 0xEC: //CPU_MEM_BANK
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WRAM[(addr & 0x1FFF) + 0x0000] = data;
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CPU_MEM_BANK[addr >> 13][addr & 0x1FFF] = data;
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break;
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case 0xE5: //SRAM
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case 0xED: //SRAM
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WRAM[(addr & 0x1FFF) + 0x2000] = data;
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break;
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case 0xE6:
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case 0xEE:
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WRAM[(addr & 0x1FFF) + 0x4000] = data;
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break;
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case 0xE7:
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case 0xEF:
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WRAM[(addr & 0x1FFF) + 0x6000] = data;
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break;
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default:
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CPU_MEM_BANK[addr >> 13][addr & 0x1FFF] = data;
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break;
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}
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}
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}
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else
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{
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if (addr >= 0x6000)
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{
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// if ( we_sram == 0 ){
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CPU_MEM_BANK[addr >> 13][addr & 0x1FFF] = data;
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// }
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}
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}
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}
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//void Mapper176::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("Address=%04X Data=%02X\n", addr&0xFFFF, data&0xFF );
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if (addr == 0xa000)
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{
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data &= 0x03;
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if (data == 0) SetVRAM_Mirror(VRAM_VMIRROR);
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else if (data == 1) SetVRAM_Mirror(VRAM_HMIRROR);
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else if (data == 2) SetVRAM_Mirror(VRAM_MIRROR4L);
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else SetVRAM_Mirror(VRAM_MIRROR4H);
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}
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if (addr == 0xa001)
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{
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// we_sram = data & 0x03;
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we_sram = data;
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}
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}
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//void Mapper176::SaveState(LPBYTE p)
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public override void SaveState(byte[] p)
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{
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p[0] = reg5000;
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p[1] = reg5001;
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p[2] = reg5010;
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p[3] = reg5011;
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p[4] = reg5013;
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p[5] = reg5FF1;
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p[6] = reg5FF2;
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p[7] = we_sram;
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p[8] = SBW;
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p[9] = sp_rom;
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}
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//void Mapper176::LoadState(LPBYTE p)
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public override void LoadState(byte[] p)
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{
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reg5000 = p[0];
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reg5001 = p[1];
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reg5010 = p[2];
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reg5011 = p[3];
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reg5013 = p[4];
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reg5FF1 = p[5];
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reg5FF2 = p[6];
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we_sram = p[7];
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SBW = p[8];
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sp_rom = p[9];
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}
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public override bool IsStateSave()
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{
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return true;
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}
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}
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}
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