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);
}
}
private void UpdateRam()
{
lock (_runLock) {
if (_chrRamChanged)
{
CoreWrapper.setMemoryState(MemoryType.ChrRam, ((StaticByteProvider)hexChrRam.ByteProvider).Bytes.ToArray());
}
if (_nametableRamChanged)
{
CoreWrapper.setMemoryState(MemoryType.NametableRam, ((StaticByteProvider)hexNametableRam.ByteProvider).Bytes.ToArray());
}
if (_paletteRamChanged)
{
CoreWrapper.setMemoryState(MemoryType.PaletteRam, ((StaticByteProvider)hexPaletteRam.ByteProvider).Bytes.ToArray());
}
if (_spriteRamChanged)
{
CoreWrapper.setMemoryState(MemoryType.SpriteRam, ((StaticByteProvider)hexSpriteRam.ByteProvider).Bytes.ToArray());
}
if (_cpuRamChanged)
{
CoreWrapper.setMemoryState(MemoryType.CpuRam, ((StaticByteProvider)hexCpuRam.ByteProvider).Bytes.ToArray());
}
if (_prgRamChanged)
{
CoreWrapper.setMemoryState(MemoryType.PrgRam, ((StaticByteProvider)hexPrgRam.ByteProvider).Bytes.ToArray());
}
}
_chrRamChanged = false;
_nametableRamChanged = false;
_paletteRamChanged = false;
_spriteRamChanged = false;
_cpuRamChanged = false;
_prgRamChanged = false;
}
private void SetMemoryState(MemoryType type, byte[] data)
{
lock (_runLock) {
UpdateRam();
CoreWrapper.setMemoryState(type, data);
_chrRamData = CoreWrapper.getMemoryState(MemoryType.ChrRam);
_paletteData = CoreWrapper.getMemoryState(MemoryType.PaletteRam);
_spriteData = CoreWrapper.getMemoryState(MemoryType.SpriteRam);
_cpuRamData = CoreWrapper.getMemoryState(MemoryType.CpuRam);
_prgRamData = CoreWrapper.getMemoryState(MemoryType.PrgRam);
}
UpdateMemoryViews();
}
private void mnuLoadState_Click(object sender, EventArgs e)
{
LoadFile("Save states (*.ss)|*.ss", (file) => {
lock (_runLock) {
CoreWrapper.setMemoryState(MemoryType.FullState, File.ReadAllBytes(file));
_chrRamChanged = false;
_paletteRamChanged = false;
_spriteRamChanged = false;
_cpuRamChanged = false;
_prgRamChanged = false;
Step(1);
}
});
}