void LoadRom(string filename)
{
byte[] rom = File.ReadAllBytes(filename);
if ((rom[6] & 0x08) == 0x08)
{
CoreWrapper.setMirroringType(MirroringType.FourScreens);
}
else
{
CoreWrapper.setMirroringType((rom[6] & 0x01) == 0x01 ? MirroringType.Vertical : MirroringType.Horizontal);
}
int prgRamSize = rom[4] * 0x4000;
int chrRamSize = rom[5] * 0x2000;
byte[] prgRam = new byte[prgRamSize];
byte[] chrRam = new byte[chrRamSize];
Array.Copy(rom, 16, prgRam, 0, prgRamSize);
Array.Copy(rom, 16 + prgRamSize, chrRam, 0, chrRamSize);
if (prgRamSize == 0x4000)
{
Array.Resize(ref prgRam, 0x8000);
Array.Copy(prgRam, 0, prgRam, 0x4000, 0x4000);
}
lock (_runLock) {
Stop();
Reset(false);
CoreWrapper.setMemoryState(MemoryType.ChrRam, chrRam);
CoreWrapper.setMemoryState(MemoryType.PrgRam, prgRam);
}
}
void SetMirroring(MirroringType mirroringType)
{
mnuMirrorHorizontal.Checked = mirroringType == MirroringType.Horizontal;
mnuMirrorVertical.Checked = mirroringType == MirroringType.Vertical;
mnuMirrorScreenA.Checked = mirroringType == MirroringType.ScreenAOnly;
mnuMirrorScreenB.Checked = mirroringType == MirroringType.ScreenBOnly;
mnuMirrorFourScreens.Checked = mirroringType == MirroringType.FourScreens;
CoreWrapper.setMirroringType(mirroringType);
}