static void writeHigh(u16 addr, u8 data)
{
switch (addr & 0xF000) {
case 0x8000:
nesSetVrom2KBank(0, data);
break;
case 0x9000:
nesSetVrom2KBank(2, data);
break;
case 0xA000:
nesSetVrom2KBank(4, data);
break;
case 0xB000:
nesSetVrom2KBank(6, data);
break;
case 0xC000:
reg[2] = data;
updateBanks();
break;
case 0xD000:
reg[3] = data;
updateBanks();
break;
case 0xE000:
reg[0] = (data & 0x10)>>4;
reg[1] = data & 0x03;
updateBanks();
break;
case 0xF000:
nesSetRom16KBank(4, data);
break;
}
}
static void writeHigh(u16 addr, u8 data)
{
switch (addr & 0xF000) {
case 0x9000:
if (data & 0x10)
nesSetMirroring(SingleHigh);
else
nesSetMirroring(SingleLow);
break;
case 0xC000:
case 0xD000:
case 0xE000:
case 0xF000:
nesSetRom16KBank(4, data);
break;
default:
break;
}
}
static void writeHigh(u16 addr, u8 data)
{
switch (addr & 0xF800) {
case 0x8800:
nesSetVrom2KBank(0, data);
break;
case 0x9800:
nesSetVrom2KBank(2, data);
break;
case 0xA800:
nesSetVrom2KBank(4, data);
break;
case 0xB800:
nesSetVrom2KBank(6, data);
break;
case 0xC800:
if (!irq_toggle) {
irq_counter = (irq_counter&0x00FF) | (data<<8);
} else {
irq_counter = (irq_counter&0xFF00) | data;
}
irq_toggle ^= 1;
nesMapperSetIrqSignalOut(false);
break;
case 0xD800:
irq_enable = data & 0x10;
irq_toggle = 0;
nesMapperSetIrqSignalOut(false);
break;
case 0xE800:
nesSetMirroring(static_cast<NesMirroring>(data & 0x03));
break;
case 0xF800:
nesSetRom16KBank(4, data);
break;
}
}
static void writeHigh(u16 addr, u8 data)
{
switch (addr & 0xF003) {
case 0x8000:
nesSetRom16KBank(4, data);
break;
case 0x9000: case 0x9001: case 0x9002:
case 0xA000: case 0xA001: case 0xA002:
case 0xB000: case 0xB001: case 0xB002:
// TODO nes->apu->ExWrite( addr, data);
break;
case 0xB003:
nesSetMirroring(static_cast<NesMirroring>((data >> 3) & 0x03));
break;
case 0xC000:
nesSetRom8KBank(6, data);
break;
case 0xD000:
nesSetVrom1KBank(0, data);
break;
case 0xD001:
nesSetVrom1KBank(1, data);
break;
case 0xD002:
nesSetVrom1KBank(2, data);
break;
case 0xD003:
nesSetVrom1KBank(3, data);
break;
case 0xE000:
nesSetVrom1KBank(4, data);
break;
case 0xE001:
nesSetVrom1KBank(5, data);
break;
case 0xE002:
nesSetVrom1KBank(6, data);
break;
case 0xE003:
nesSetVrom1KBank(7, data);
break;
case 0xF000:
irq_latch = data;
break;
case 0xF001:
irq_enable = data & 0x03;
if (irq_enable & 0x02) {
irq_counter = irq_latch;
irq_clock = 0;
}
nesMapperSetIrqSignalOut(false);
break;
case 0xF002:
irq_enable = (irq_enable & 0x01) * 3;
nesMapperSetIrqSignalOut(false);
break;
}
}
static void writeLow(u16 addr, u8 data)
{
if ((addr & 0xE000) == 0x6000)
nesSetRom16KBank(4, data);
}