AxibugEmuOnline/AxibugEmuOnline.Client/Assets/VirtualNes.Core/Mapper/Mapper033.cs
2024-08-05 01:33:07 +08:00

261 lines
5.0 KiB
C#

//////////////////////////////////////////////////////////////////////////
// Mapper033 Taito TC0190 //
//////////////////////////////////////////////////////////////////////////
using static VirtualNes.MMU;
using static VirtualNes.Core.CPU;
using INT = System.Int32;
using BYTE = System.Byte;
using Codice.CM.Client.Differences;
namespace VirtualNes.Core
{
public class Mapper033 : Mapper
{
BYTE[] reg = new byte[7];
BYTE patch;
BYTE irq_enable;
BYTE irq_counter;
BYTE irq_latch;
public Mapper033(NES parent) : base(parent)
{
}
public override void Reset()
{
patch = 0;
irq_enable = 0;
irq_counter = 0;
irq_latch = 0;
reg[0] = 0;
reg[1] = 2;
reg[2] = 4;
reg[3] = 5;
reg[4] = 6;
reg[5] = 7;
reg[6] = 1;
SetPROM_32K_Bank(0, 1, PROM_8K_SIZE - 2, PROM_8K_SIZE - 1);
if (VROM_8K_SIZE != 0)
{
SetBank();
}
uint crc = nes.rom.GetPROM_CRC();
// Check For Old #33 games.... (CRC code by NesToy)
if (crc == 0x5e9bc161 // Akira(J)
|| crc == 0xecdbafa4 // Bakushou!! Jinsei Gekijou(J)
|| crc == 0x59cd0c31 // Don Doko Don(J)
|| crc == 0x837c1342 // Golf Ko Open(J)
|| crc == 0x42d893e4 // Operation Wolf(J)
|| crc == 0x1388aeb9 // Operation Wolf(U)
|| crc == 0x07ee6d8f // Power Blazer(J)
|| crc == 0x5193fb54 // Takeshi no Sengoku Fuuunji(J)
|| crc == 0xa71c3452)
{ // Insector X(J)
patch = 1;
}
nes.SetRenderMethod(EnumRenderMethod.PRE_RENDER);
if (crc == 0x202df297)
{ // Captain Saver(J)
nes.SetRenderMethod(EnumRenderMethod.TILE_RENDER);
}
if (crc == 0x63bb86b5)
{ // The Jetsons(J)
nes.SetRenderMethod(EnumRenderMethod.TILE_RENDER);
}
}
//void Mapper033::Write(WORD addr, BYTE data)
public override void Write(ushort addr, byte data)
{
// LOG( "Mapper033 addr=%04X data=%02X", addr&0xFFFF, data&0xFF );
switch (addr)
{
case 0x8000:
if (patch != 0)
{
if ((data & 0x40) != 0) SetVRAM_Mirror(VRAM_HMIRROR);
else SetVRAM_Mirror(VRAM_VMIRROR);
SetPROM_8K_Bank(4, data & 0x1F);
}
else
{
SetPROM_8K_Bank(4, data);
}
break;
case 0x8001:
if (patch != 0)
{
SetPROM_8K_Bank(5, data & 0x1F);
}
else
{
SetPROM_8K_Bank(5, data);
}
break;
case 0x8002:
reg[0] = data;
SetBank();
break;
case 0x8003:
reg[1] = data;
SetBank();
break;
case 0xA000:
reg[2] = data;
SetBank();
break;
case 0xA001:
reg[3] = data;
SetBank();
break;
case 0xA002:
reg[4] = data;
SetBank();
break;
case 0xA003:
reg[5] = data;
SetBank();
break;
#if FLASE//0
case 0xC003:
case 0xE003:
reg[6] = data;
SetBank();
break;
case 0xC000:
irq_counter = data;
// nes.cpu.ClrIRQ( IRQ_MAPPER );
break;
case 0xC001:
case 0xC002:
case 0xE001:
case 0xE002:
irq_enable = data;
// nes.cpu.ClrIRQ( IRQ_MAPPER );
break;
#else
case 0xC000:
irq_latch = data;
irq_counter = irq_latch;
break;
case 0xC001:
irq_counter = irq_latch;
break;
case 0xC002:
irq_enable = 1;
break;
case 0xC003:
irq_enable = 0;
break;
case 0xE001:
case 0xE002:
case 0xE003:
break;
#endif
case 0xE000:
if ((data & 0x40) != 0) SetVRAM_Mirror(VRAM_HMIRROR);
else SetVRAM_Mirror(VRAM_VMIRROR);
break;
}
}
//void Mapper033::HSync(INT scanline)
public override void HSync(int scanline)
{
#if FALSE//0
// nes.cpu.ClrIRQ( IRQ_MAPPER );
if( scanline >= 0 && scanline <= 239 ) {
if( nes.ppu.IsDispON() ) {
if( irq_enable ) {
if( irq_counter == 0xFF ) {
irq_enable = 0;
irq_counter = 0;
// nes.cpu.SetIRQ( IRQ_MAPPER );
nes.cpu.SetIRQ( IRQ_TRIGGER );
} else {
irq_counter++;
}
}
}
}
#else
if (scanline >= 0 && scanline <= 239 && nes.ppu.IsDispON())
{
if (irq_enable != 0)
{
if (++irq_counter == 0)
{
irq_enable = 0;
irq_counter = 0;
nes.cpu.SetIRQ(IRQ_TRIGGER);
}
}
}
#endif
}
void SetBank()
{
SetVROM_2K_Bank(0, reg[0]);
SetVROM_2K_Bank(2, reg[1]);
// if( reg[6] & 0x01 ) {
SetVROM_1K_Bank(4, reg[2]);
SetVROM_1K_Bank(5, reg[3]);
SetVROM_1K_Bank(6, reg[4]);
SetVROM_1K_Bank(7, reg[5]);
// } else {
// SetVROM_2K_Bank( 4, reg[0] );
// SetVROM_2K_Bank( 6, reg[1] );
// }
}
//void Mapper033::SaveState(LPBYTE p)
public override void SaveState(byte[] p)
{
for (INT i = 0; i < 7; i++)
{
p[i] = reg[i];
}
p[7] = irq_enable;
p[8] = irq_counter;
p[9] = irq_latch;
}
//void Mapper033::LoadState(LPBYTE p)
public override void LoadState(byte[] p)
{
for (INT i = 0; i < 7; i++)
{
reg[i] = p[i];
}
irq_enable = p[7];
irq_counter = p[8];
irq_latch = p[9];
}
public override bool IsStateSave()
{
return true;
}
}
}