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AxibugEmuOnline/AxibugEmuOnline.Client/Assets/VirtualNes.Core/Mapper/Mapper249.cs

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考虑PSV Unity低版本 修改代码
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using static VirtualNes.Core.CPU;
using static VirtualNes.MMU;
transfer Mapper 200-255.cs
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using BYTE = System.Byte;
考虑PSV Unity低版本 修改代码
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using INT = System.Int32;
transfer Mapper 200-255.cs
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namespace VirtualNes.Core
{
public class Mapper249 : Mapper
{
int MMC4prg, MMC4chr;
BYTE spdata;
BYTE[] reg = new BYTE[8];
BYTE prg0, prg1;
BYTE chr01, chr23, chr4, chr5, chr6, chr7;
BYTE we_sram;
BYTE patch;
BYTE irq_type;
BYTE irq_enable;
BYTE irq_counter;
BYTE irq_latch;
BYTE irq_request;
public Mapper249(NES parent) : base(parent)
{
}
public override void Reset()
{
for (INT i = 0; i < 8; i++)
{
reg[i] = 0x00;
}
prg0 = 0;
prg1 = 1;
SetPROM_32K_Bank(0, 1, PROM_8K_SIZE - 2, PROM_8K_SIZE - 1);
chr01 = 0;
chr23 = 2;
chr4 = 4;
chr5 = 5;
chr6 = 6;
chr7 = 7;
SetVROM_8K_Bank(0);
we_sram = 0; // Disable
irq_enable = 0; // Disable
irq_counter = 0;
irq_latch = 0;
irq_request = 0;
// IRQタイプ設定
nes.SetIrqType(NES.IRQMETHOD.IRQ_CLOCK);
spdata = 0;
}
//void Mapper249::WriteLow(WORD addr, BYTE data)
public override void WriteLow(ushort addr, byte data)
{
if (addr == 0x5000)
{
switch (data)
{
case 0x00:
spdata = 0;
break;
case 0x02:
spdata = 1;
break;
}
}
if (addr >= 0x6000 && addr < 0x8000)
{
CPU_MEM_BANK[addr >> 13][addr & 0x1FFF] = data;
}
}
//void Mapper249::Write(WORD addr, BYTE data)
public override void Write(ushort addr, byte data)
{
BYTE m0, m1, m2, m3, m4, m5, m6, m7;
switch (addr & 0xFF01)
{
case 0x8000:
case 0x8800:
reg[0] = data;
break;
case 0x8001:
case 0x8801:
switch (reg[0] & 0x07)
{
case 0x00:
if (spdata == 1)
{
m0 = (byte)(data & 0x1);
m1 = (byte)((data & 0x02) >> 1);
m2 = (byte)((data & 0x04) >> 2);
m3 = (byte)((data & 0x08) >> 3);
m4 = (byte)((data & 0x10) >> 4);
m5 = (byte)((data & 0x20) >> 5);
m6 = (byte)((data & 0x40) >> 6);
m7 = (byte)((data & 0x80) >> 7);
data = (byte)((m5 << 7) | (m4 << 6) | (m2 << 5) | (m6 << 4) | (m7 << 3) | (m3 << 2) | (m1 << 1) | m0);
}
SetVROM_1K_Bank(0, data & 0xFE);
SetVROM_1K_Bank(1, data | 0x01);
break;
case 0x01:
if (spdata == 1)
{
m0 = (byte)(data & 0x1);
m1 = (byte)((data & 0x02) >> 1);
m2 = (byte)((data & 0x04) >> 2);
m3 = (byte)((data & 0x08) >> 3);
m4 = (byte)((data & 0x10) >> 4);
m5 = (byte)((data & 0x20) >> 5);
m6 = (byte)((data & 0x40) >> 6);
m7 = (byte)((data & 0x80) >> 7);
data = (byte)((m5 << 7) | (m4 << 6) | (m2 << 5) | (m6 << 4) | (m7 << 3) | (m3 << 2) | (m1 << 1) | m0);
}
SetVROM_1K_Bank(2, data & 0xFE);
SetVROM_1K_Bank(3, data | 0x01);
break;
case 0x02:
if (spdata == 1)
{
m0 = (byte)(data & 0x1);
m1 = (byte)((data & 0x02) >> 1);
m2 = (byte)((data & 0x04) >> 2);
m3 = (byte)((data & 0x08) >> 3);
m4 = (byte)((data & 0x10) >> 4);
m5 = (byte)((data & 0x20) >> 5);
m6 = (byte)((data & 0x40) >> 6);
m7 = (byte)((data & 0x80) >> 7);
data = (byte)((m5 << 7) | (m4 << 6) | (m2 << 5) | (m6 << 4) | (m7 << 3) | (m3 << 2) | (m1 << 1) | m0);
}
SetVROM_1K_Bank(4, data);
break;
case 0x03:
if (spdata == 1)
{
m0 = (byte)(data & 0x1);
m1 = (byte)((data & 0x02) >> 1);
m2 = (byte)((data & 0x04) >> 2);
m3 = (byte)((data & 0x08) >> 3);
m4 = (byte)((data & 0x10) >> 4);
m5 = (byte)((data & 0x20) >> 5);
m6 = (byte)((data & 0x40) >> 6);
m7 = (byte)((data & 0x80) >> 7);
data = (byte)((m5 << 7) | (m4 << 6) | (m2 << 5) | (m6 << 4) | (m7 << 3) | (m3 << 2) | (m1 << 1) | m0);
}
SetVROM_1K_Bank(5, data);
break;
case 0x04:
if (spdata == 1)
{
m0 = (byte)(data & 0x1);
m1 = (byte)((data & 0x02) >> 1);
m2 = (byte)((data & 0x04) >> 2);
m3 = (byte)((data & 0x08) >> 3);
m4 = (byte)((data & 0x10) >> 4);
m5 = (byte)((data & 0x20) >> 5);
m6 = (byte)((data & 0x40) >> 6);
m7 = (byte)((data & 0x80) >> 7);
data = (byte)((m5 << 7) | (m4 << 6) | (m2 << 5) | (m6 << 4) | (m7 << 3) | (m3 << 2) | (m1 << 1) | m0);
}
SetVROM_1K_Bank(6, data);
break;
case 0x05:
if (spdata == 1)
{
m0 = (byte)(data & 0x1);
m1 = (byte)((data & 0x02) >> 1);
m2 = (byte)((data & 0x04) >> 2);
m3 = (byte)((data & 0x08) >> 3);
m4 = (byte)((data & 0x10) >> 4);
m5 = (byte)((data & 0x20) >> 5);
m6 = (byte)((data & 0x40) >> 6);
m7 = (byte)((data & 0x80) >> 7);
data = (byte)((m5 << 7) | (m4 << 6) | (m2 << 5) | (m6 << 4) | (m7 << 3) | (m3 << 2) | (m1 << 1) | m0);
}
SetVROM_1K_Bank(7, data);
break;
case 0x06:
if (spdata == 1)
{
if (data < 0x20)
{
m0 = (byte)(data & 0x1);
m1 = (byte)((data & 0x02) >> 1);
m2 = (byte)((data & 0x04) >> 2);
m3 = (byte)((data & 0x08) >> 3);
m4 = (byte)((data & 0x10) >> 4);
m5 = 0;
m6 = 0;
m7 = 0;
data = (byte)((m7 << 7) | (m6 << 6) | (m5 << 5) | (m2 << 4) | (m1 << 3) | (m3 << 2) | (m4 << 1) | m0);
}
else
{
data = (byte)(data - 0x20);
m0 = (byte)(data & 0x1);
m1 = (byte)((data & 0x02) >> 1);
m2 = (byte)((data & 0x04) >> 2);
m3 = (byte)((data & 0x08) >> 3);
m4 = (byte)((data & 0x10) >> 4);
m5 = (byte)((data & 0x20) >> 5);
m6 = (byte)((data & 0x40) >> 6);
m7 = (byte)((data & 0x80) >> 7);
data = (byte)((m5 << 7) | (m4 << 6) | (m2 << 5) | (m6 << 4) | (m7 << 3) | (m3 << 2) | (m1 << 1) | m0);
}
}
SetPROM_8K_Bank(4, data);
break;
case 0x07:
if (spdata == 1)
{
if (data < 0x20)
{
m0 = (byte)(data & 0x1);
m1 = (byte)((data & 0x02) >> 1);
m2 = (byte)((data & 0x04) >> 2);
m3 = (byte)((data & 0x08) >> 3);
m4 = (byte)((data & 0x10) >> 4);
m5 = 0;
m6 = 0;
m7 = 0;
data = (byte)((m7 << 7) | (m6 << 6) | (m5 << 5) | (m2 << 4) | (m1 << 3) | (m3 << 2) | (m4 << 1) | m0);
}
else
{
data = (byte)(data - 0x20);
m0 = (byte)(data & 0x1);
m1 = (byte)((data & 0x02) >> 1);
m2 = (byte)((data & 0x04) >> 2);
m3 = (byte)((data & 0x08) >> 3);
m4 = (byte)((data & 0x10) >> 4);
m5 = (byte)((data & 0x20) >> 5);
m6 = (byte)((data & 0x40) >> 6);
m7 = (byte)((data & 0x80) >> 7);
data = (byte)((m5 << 7) | (m4 << 6) | (m2 << 5) | (m6 << 4) | (m7 << 3) | (m3 << 2) | (m1 << 1) | m0);
}
}
SetPROM_8K_Bank(5, data);
break;
}
break;
case 0xA000:
case 0xA800:
reg[2] = data;
if (!nes.rom.Is4SCREEN())
{
考虑PSV Unity低版本 修改代码
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if ((data & 0x01) != 0) SetVRAM_Mirror(VRAM_HMIRROR);
transfer Mapper 200-255.cs
2024-08-03 22:26:53 +08:00
else SetVRAM_Mirror(VRAM_VMIRROR);
}
break;
case 0xA001:
case 0xA801:
reg[3] = data;
break;
case 0xC000:
case 0xC800:
reg[4] = data;
irq_counter = data;
irq_request = 0;
nes.cpu.ClrIRQ(IRQ_MAPPER);
break;
case 0xC001:
case 0xC801:
reg[5] = data;
irq_latch = data;
irq_request = 0;
nes.cpu.ClrIRQ(IRQ_MAPPER);
break;
case 0xE000:
case 0xE800:
reg[6] = data;
irq_enable = 0;
irq_request = 0;
nes.cpu.ClrIRQ(IRQ_MAPPER);
break;
case 0xE001:
case 0xE801:
reg[7] = data;
irq_enable = 1;
irq_request = 0;
nes.cpu.ClrIRQ(IRQ_MAPPER);
break;
}
}
//void Mapper249::Clock(INT cycles)
public override void Clock(int cycles)
{
// if( irq_request && (nes->GetIrqType() == NES::IRQ_CLOCK) ) {
// nes->cpu->IRQ_NotPending();
// }
}
//void Mapper249::HSync(INT scanline)
public override void HSync(int scanline)
{
if ((scanline >= 0 && scanline <= 239))
{
if (nes.ppu.IsDispON())
{
考虑PSV Unity低版本 修改代码
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if (irq_enable != 0 && irq_request == 0)
transfer Mapper 200-255.cs
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{
if (scanline == 0)
{
if (irq_counter != 0)
{
irq_counter--;
}
}
if ((irq_counter--) == 0)
{
irq_request = 0xFF;
irq_counter = irq_latch;
nes.cpu.SetIRQ(IRQ_MAPPER);
}
}
}
}
// if( irq_request && (nes->GetIrqType() == NES::IRQ_HSYNC) ) {
// nes->cpu->IRQ_NotPending();
// }
}
public override bool IsStateSave()
{
return true;
}
//void Mapper249::SaveState(LPBYTE p)
public override void SaveState(byte[] p)
{
补充Mapper 即时存档代码 | EEROM代码补充实现
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for (INT i = 0; i < 8; i++)
{
p[i] = reg[i];
}
p[8] = prg0;
p[9] = prg1;
p[10] = chr01;
p[11] = chr23;
p[12] = chr4;
p[13] = chr5;
p[14] = chr6;
p[15] = chr7;
p[16] = irq_enable;
p[17] = irq_counter;
p[18] = irq_latch;
p[19] = irq_request;
p[20] = spdata;
transfer Mapper 200-255.cs
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}
//void Mapper249::LoadState(LPBYTE p)
public override void LoadState(byte[] p)
{
补充Mapper 即时存档代码 | EEROM代码补充实现
2024-08-28 17:38:01 +08:00
for (INT i = 0; i < 8; i++)
{
reg[i] = p[i];
}
prg0 = p[8];
prg1 = p[9];
chr01 = p[10];
chr23 = p[11];
chr4 = p[12];
chr5 = p[13];
chr6 = p[14];
chr7 = p[15];
irq_enable = p[16];
irq_counter = p[17];
irq_latch = p[18];
irq_request = p[19];
spdata = p[20];
transfer Mapper 200-255.cs
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}
}
}
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