//logical register writes, called from the serial controller
public void SerialWriteRegister(int addr, int value)
{
switch (addr)
{
case 0: //8000-9FFF
mirror = _mirrorTypes[value & 3];
prg_slot = ((value >> 2) & 1);
prg_mode = ((value >> 3) & 1);
chr_mode = ((value >> 4) & 1);
break;
case 1: //A000-BFFF
chr_0 = value & 0x1F;
break;
case 2: //C000-DFFF
chr_1 = value & 0x1F;
break;
case 3: //E000-FFFF
prg = value & 0xF;
wram_disable = (value >> 4) & 1;
break;
}
//board.NES.LogLine("mapping.. chr_mode={0}, chr={1},{2}", chr_mode, chr_0, chr_1);
//board.NES.LogLine("mapping.. prg_mode={0}, prg_slot{1}, prg={2}", prg_mode, prg_slot, prg);
}
public void StandardReset()
{
prg_mode = 1;
prg_slot = 1;
chr_mode = 1;
scnt.Reset();
mirror = NES.NESBoardBase.EMirrorType.Horizontal;
SyncCHR();
SyncPRG();
}
//logical register writes, called from the serial controller
public void SerialWriteRegister(int addr, int value)
{
switch (addr)
{
case 0: //8000-9FFF
mirror = _mirrorTypes[value & 3];
prg_slot = ((value >> 2) & 1);
prg_mode = ((value >> 3) & 1);
chr_mode = ((value >> 4) & 1);
break;
case 1: //A000-BFFF
chr_0 = value & 0x1F;
break;
case 2: //C000-DFFF
chr_1 = value & 0x1F;
break;
case 3: //E000-FFFF
prg = value & 0xF;
wram_disable = (value >> 4) & 1;
break;
}
//board.NES.LogLine("mapping.. chr_mode={0}, chr={1},{2}", chr_mode, chr_0, chr_1);
//board.NES.LogLine("mapping.. prg_mode={0}, prg_slot{1}, prg={2}", prg_mode, prg_slot, prg);
}
public void StandardReset()
{
prg_mode = 1;
prg_slot = 1;
chr_mode = 1;
scnt.Reset();
mirror = NES.NESBoardBase.EMirrorType.Horizontal;
SyncCHR();
SyncPRG();
}
