public static void PPBClear(FamicomDumperConnection dumper)
{
// enable PRG write
dumper.WriteCpu(0x5007, 0x04);
// mask = 32K
dumper.WriteCpu(0x5002, 0xFE);
// Sector 0
dumper.WriteCpu(0x5000, 0);
dumper.WriteCpu(0x5001, 0);
FlashHelper.PPBClear(dumper);
}
public static void PPBClear(FamicomDumperConnection dumper, ushort coolboyReg)
{
// Sector 0
int bank = 0;
byte r0 = (byte)(((bank >> 3) & 0x07) // 5, 4, 3 bits
| (((bank >> 9) & 0x03) << 4) // 10, 9 bits
| (1 << 6)); // resets 4th mask bit
byte r1 = (byte)((((bank >> 7) & 0x03) << 2) // 8, 7
| (((bank >> 6) & 1) << 4) // 6
| (1 << 7)); // resets 5th mask bit
byte r2 = 0;
byte r3 = (byte)((1 << 4) // NROM mode
| ((bank & 7) << 1)); // 2, 1, 0 bits
dumper.WriteCpu(coolboyReg, r0, r1, r2, r3);
FlashHelper.PPBClear(dumper);
}
