439 lines
14 KiB
C#
439 lines
14 KiB
C#
//////////////////////////////////////////////////////////////////////////
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// Mapper016 Bandai Standard //
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//////////////////////////////////////////////////////////////////////////
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using static VirtualNes.Core.CPU;
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using static VirtualNes.MMU;
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using BYTE = System.Byte;
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using INT = System.Int32;
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namespace VirtualNes.Core
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{
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public class Mapper016 : Mapper
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{
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BYTE patch; // For Famicom Jump 2
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BYTE eeprom_type; // EEPROM type
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BYTE[] reg = new byte[3];
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BYTE irq_enable;
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INT irq_counter;
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INT irq_latch;
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BYTE irq_type;
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X24C01 x24c01;
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X24C02 x24c02;
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public Mapper016(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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patch = 0;
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reg[0] = reg[1] = reg[2] = 0;
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irq_enable = 0;
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irq_counter = 0;
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irq_latch = 0;
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irq_type = 0;
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nes.SetIrqType(NES.IRQMETHOD.IRQ_CLOCK);
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eeprom_type = 0;
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SetPROM_32K_Bank(0, 1, PROM_8K_SIZE - 2, PROM_8K_SIZE - 1);
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uint crc = nes.rom.GetPROM_CRC();
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if (crc == 0x3f15d20d // Famicom Jump 2(J)
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|| crc == 0xf76aa523)
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{ // Famicom Jump 2(J)(alt)
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patch = 1;
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eeprom_type = 0xFF;
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WRAM[0x0BBC] = 0xFF; // SRAM対策
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}
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if (crc == 0x1d6f27f7)
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{ // Dragon Ball Z 2(Korean Hack)
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nes.SetIrqType(NES.IRQMETHOD.IRQ_HSYNC);
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eeprom_type = 1;
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}
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if (crc == 0x6f7247c8)
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{ // Dragon Ball Z 3(Korean Hack)
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nes.SetIrqType(NES.IRQMETHOD.IRQ_CLOCK);
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eeprom_type = 1;
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}
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if (crc == 0x7fb799fd)
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{ // Dragon Ball 2 - Dai Maou Fukkatsu(J)
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}
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if (crc == 0x6c6c2feb // Dragon Ball 3 - Gokuu Den(J)
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|| crc == 0x8edeb257)
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{ // Dragon Ball 3 - Gokuu Den(J)(Alt)
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}
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if (crc == 0x31cd9903)
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{ // Dragon Ball Z - Kyoushuu! Saiya Jin(J)
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nes.SetIrqType(NES.IRQMETHOD.IRQ_HSYNC);
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}
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if (crc == 0xe49fc53e // Dragon Ball Z 2 - Gekishin Freeza!!(J)
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|| crc == 0x1582fee0)
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{ // Dragon Ball Z 2 - Gekishin Freeza!!(J) [alt]
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nes.SetIrqType(NES.IRQMETHOD.IRQ_HSYNC);
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eeprom_type = 1;
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}
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if (crc == 0x09499f4d)
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{ // Dragon Ball Z 3 - Ressen Jinzou Ningen(J)
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nes.SetIrqType(NES.IRQMETHOD.IRQ_HSYNC);
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eeprom_type = 1;
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}
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if (crc == 0x2e991109)
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{ // Dragon Ball Z Gaiden - Saiya Jin Zetsumetsu Keikaku (J)
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nes.SetIrqType(NES.IRQMETHOD.IRQ_HSYNC);
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eeprom_type = 1;
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}
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if (crc == 0x146fb9c3)
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{ // SD Gundam Gaiden - Knight Gundam Monogatari(J)
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}
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if (crc == 0x73ac76db // SD Gundam Gaiden - Knight Gundam Monogatari 2 - Hikari no Kishi(J)
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|| crc == 0x81a15eb8)
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{ // SD Gundam Gaiden - Knight Gundam Monogatari 3 - Densetsu no Kishi Dan(J)
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eeprom_type = 1;
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}
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if (crc == 0x170250de)
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{ // Rokudenashi Blues(J)
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nes.SetRenderMethod(EnumRenderMethod.POST_ALL_RENDER);
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eeprom_type = 1;
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}
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// DATACH系
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if (crc == 0x0be0a328 // Datach - SD Gundam - Gundam Wars(J)
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|| crc == 0x19e81461 // Datach - Dragon Ball Z - Gekitou Tenkaichi Budou Kai(J)
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|| crc == 0x5b457641 // Datach - Ultraman Club - Supokon Fight!(J)
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|| crc == 0x894efdbc // Datach - Crayon Shin Chan - Ora to Poi Poi(J)
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|| crc == 0x983d8175 // Datach - Battle Rush - Build Up Robot Tournament(J)
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|| crc == 0xbe06853f)
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{ // Datach - J League Super Top Players(J)
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eeprom_type = 2;
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}
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if (crc == 0xf51a7f46)
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{ // Datach - Yuu Yuu Hakusho - Bakutou Ankoku Bujutsu Kai(J)
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nes.SetIrqType(NES.IRQMETHOD.IRQ_HSYNC);
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eeprom_type = 2;
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}
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if (eeprom_type == 0)
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{
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nes.SetSAVERAM_SIZE(128);
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x24c01.Reset(WRAM);
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}
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else
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if (eeprom_type == 1)
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{
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nes.SetSAVERAM_SIZE(256);
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x24c02.Reset(WRAM);
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}
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else
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if (eeprom_type == 2)
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{
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nes.SetSAVERAM_SIZE(384);
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x24c02.Reset(WRAM);
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x24c01.Reset(new ArrayRef<byte>(WRAM, 256));
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}
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}
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//BYTE Mapper016::ReadLow(WORD addr)
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public override byte ReadLow(ushort addr)
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{
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if (patch != 0)
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{
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return base.ReadLow(addr);
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}
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else
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{
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if ((addr & 0x00FF) == 0x0000)
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{
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BYTE ret = 0;
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if (eeprom_type == 0)
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{
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ret = x24c01.Read();
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}
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else
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if (eeprom_type == 1)
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{
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ret = x24c02.Read();
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}
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else
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if (eeprom_type == 2)
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{
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ret = (byte)(x24c02.Read() & x24c01.Read());
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}
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return (byte)((ret != 0 ? 0x10 : 0) | (nes.GetBarcodeStatus()));
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}
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}
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return 0x00;
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}
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//void Mapper016::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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if (patch == 0)
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{
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WriteSubA(addr, data);
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}
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else
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{
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base.WriteLow(addr, data);
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}
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}
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public override void Write(ushort addr, byte data)
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{
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if (patch == 0)
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{
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WriteSubA(addr, data);
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}
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else
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{
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WriteSubB(addr, data);
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}
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}
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static BYTE eeprom_addinc;
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// Normal mapper #16
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void WriteSubA(ushort addr, BYTE data)
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{
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switch (addr & 0x000F)
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{
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case 0x0000:
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case 0x0001:
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case 0x0002:
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case 0x0003:
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case 0x0004:
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case 0x0005:
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case 0x0006:
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case 0x0007:
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if (VROM_1K_SIZE != 0)
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{
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SetVROM_1K_Bank((byte)(addr & 0x0007), data);
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}
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if (eeprom_type == 2)
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{
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reg[0] = data;
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x24c01.Write((byte)((data & 0x08) != 0 ? 0xFF : 0), (byte)((reg[1] & 0x40) != 0 ? 0xFF : 0));
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}
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break;
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case 0x0008:
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SetPROM_16K_Bank(4, data);
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break;
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case 0x0009:
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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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break;
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case 0x000A:
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irq_enable = (byte)(data & 0x01);
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irq_counter = irq_latch;
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nes.cpu.ClrIRQ(IRQ_MAPPER);
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break;
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case 0x000B:
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irq_latch = (irq_latch & 0xFF00) | data;
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irq_counter = (irq_counter & 0xFF00) | data;
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break;
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case 0x000C:
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irq_latch = (data << 8) | (irq_latch & 0x00FF);
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irq_counter = (data << 8) | (irq_counter & 0x00FF);
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break;
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case 0x000D:
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// EEPTYPE0(DragonBallZ)
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if (eeprom_type == 0)
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{
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x24c01.Write((byte)((data & 0x20) != 0 ? 0xFF : 0), (byte)((data & 0x40) != 0 ? 0xFF : 0));
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}
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// EEPTYPE1(DragonBallZ2,Z3,Z Gaiden)
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if (eeprom_type == 1)
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{
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x24c02.Write((byte)((data & 0x20) != 0 ? 0xFF : 0), (byte)((data & 0x40) != 0 ? 0xFF : 0));
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}
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// EEPTYPE2(DATACH)
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if (eeprom_type == 2)
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{
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reg[1] = data;
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x24c02.Write((byte)((data & 0x20) != 0 ? 0xFF : 0), (byte)((data & 0x40) != 0 ? 0xFF : 0));
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x24c01.Write((byte)((reg[0] & 0x08) != 0 ? 0xFF : 0), (byte)((data & 0x40) != 0 ? 0xFF : 0));
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}
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break;
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}
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}
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// Famicom Jump 2
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void WriteSubB(ushort addr, BYTE data)
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{
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switch (addr)
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{
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case 0x8000:
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case 0x8001:
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case 0x8002:
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case 0x8003:
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reg[0] = (byte)(data & 0x01);
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SetPROM_8K_Bank(4, reg[0] * 0x20 + reg[2] * 2 + 0);
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SetPROM_8K_Bank(5, reg[0] * 0x20 + reg[2] * 2 + 1);
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break;
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case 0x8004:
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case 0x8005:
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case 0x8006:
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case 0x8007:
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reg[1] = (byte)(data & 0x01);
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SetPROM_8K_Bank(6, reg[1] * 0x20 + 0x1E);
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SetPROM_8K_Bank(7, reg[1] * 0x20 + 0x1F);
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break;
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case 0x8008:
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reg[2] = data;
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SetPROM_8K_Bank(4, reg[0] * 0x20 + reg[2] * 2 + 0);
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SetPROM_8K_Bank(5, reg[0] * 0x20 + reg[2] * 2 + 1);
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SetPROM_8K_Bank(6, reg[1] * 0x20 + 0x1E);
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SetPROM_8K_Bank(7, reg[1] * 0x20 + 0x1F);
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break;
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case 0x8009:
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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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break;
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case 0x800A:
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irq_enable = (byte)(data & 0x01);
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irq_counter = irq_latch;
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// if( !irq_enable ) {
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// nes.cpu.ClrIRQ( IRQ_MAPPER );
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// }
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nes.cpu.ClrIRQ(IRQ_MAPPER);
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break;
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case 0x800B:
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irq_latch = (irq_latch & 0xFF00) | data;
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break;
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case 0x800C:
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irq_latch = (data << 8) | (irq_latch & 0x00FF);
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break;
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case 0x800D:
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break;
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}
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}
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public override void HSync(int scanline)
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{
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if (irq_enable != 0 && (nes.GetIrqType() == (int)NES.IRQMETHOD.IRQ_HSYNC))
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{
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if (irq_counter <= 113)
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{
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nes.cpu.SetIRQ(IRQ_MAPPER);
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// nes.cpu.IRQ();
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//// nes.cpu.IRQ_NotPending();
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// irq_enable = 0;
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// irq_counter = 0;
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irq_counter &= 0xFFFF;
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}
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else
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{
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irq_counter -= 113;
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}
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}
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}
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public override void Clock(int cycles)
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{
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if (irq_enable != 0 && (nes.GetIrqType() == (int)NES.IRQMETHOD.IRQ_CLOCK))
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{
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if ((irq_counter -= cycles) <= 0)
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{
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nes.cpu.SetIRQ(IRQ_MAPPER);
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// nes.cpu.IRQ();
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//// nes.cpu.IRQ_NotPending();
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// irq_enable = 0;
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// irq_counter = 0;
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irq_counter &= 0xFFFF;
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}
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}
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}
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public unsafe override void SaveState(byte[] buffer)
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{
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fixed (byte* p = buffer)
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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] = irq_enable;
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*(INT*)&p[4] = irq_counter;
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*(INT*)&p[8] = irq_latch;
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if (eeprom_type == 0)
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{
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x24c01.Save(&p[16]);
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}
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else
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if (eeprom_type == 1)
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{
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x24c02.Save(&p[16]);
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}
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else
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if (eeprom_type == 2)
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{
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x24c02.Save(&p[16]);
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x24c01.Save(&p[48]);
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}
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}
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}
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public unsafe override void LoadState(byte[] buffer)
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{
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fixed (byte* p = buffer)
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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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irq_enable = p[3];
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irq_counter = *(INT*)&p[4];
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irq_latch = *(INT*)&p[8];
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if (eeprom_type == 0)
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{
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x24c01.Load(&p[16]);
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}
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else
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if (eeprom_type == 1)
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{
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//x24c02.Load(&p[16]);
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x24c02.Load(p + 16);
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}
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else
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if (eeprom_type == 2)
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{
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//x24c02.Load(&p[16]);
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//x24c01.Load(&p[48]);
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x24c02.Load(p+16);
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x24c01.Load(p+48);
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}
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}
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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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