public Memory(MemoryBankController MBC, byte[] ROM, Gameboy parent, byte[] bootrom = null)
{
this.MBC = MBC;
this.ROM = ROM;
this.RAM = new byte[0x10000];
this.BOOTROM = bootrom;
this.parent = parent;
RAM[0xFF00] = 0xCF;
}
public Cartridge(byte[] romfile)
{
ROM = romfile;
// CGB Support
if (ROM[0x0143] == 0x80)
{
ColorSupport = ColorSupportMode.SupportsColor;
}
else if (ROM[0x0143] == 0xC0)
{
ColorSupport = ColorSupportMode.ColorOnly;
}
// SGB Flag
if (ROM[0x0146] == 0x03)
{
SupportsSGB = true;
}
// ROM Size / ROM Banks Count
if (ROM[0x0148] == 0)
{
ROMBanks = 0;
}
else if (ROM[0x0148] > 0 && ROM[0x148] < 9)
{
ROMBanks = (byte)Math.Pow(2, ROM[0x0148]);
}
else
{
switch (ROM[0x0148])
{
case 0x52: ROMBanks = 72; break;
case 0x53: ROMBanks = 80; break;
case 0x54: ROMBanks = 96; break;
}
}
// External RAM Size
switch (ROM[0x0149])
{
case 0x01: ExternalRAMSize = 2048; break;
case 0x00:
case 0x02: ExternalRAMSize = 8192; break;
case 0x03: ExternalRAMSize = 32768; break;
case 0x04: ExternalRAMSize = 131072; break;
case 0x05: ExternalRAMSize = 65536; break;
}
// Destination Code
if (ROM[0x14A] == 0)
{
Japanese = true;
}
// Licensee Code
if (ROM[0x014B] == 0x33)
{
LicenseeCode = Encoding.ASCII.GetString(new byte[] { ROM[0x0144], ROM[0x0145] });
}
else
{
LicenseeCode = ROM[0x014B].ToString("X2");
}
// Version Number & Checksums
Version = ROM[0x014C];
Checksum = ROM[0x014D];
GlobalChecksum = (ushort)((ROM[0x014E] << 8) + ROM[0x014F]);
// Cartridge Type + MBC
CartridgeType = ROM[0x0147];
MemoryBankController = InitializeMBC();
// Title + Manufacturer Code
for (int i = 0x0134; i <= 0x0143; i++)
{
if (i == 0x0143 && ColorSupport != ColorSupportMode.NoColor)
{
break;
}
string c = Encoding.ASCII.GetString(new byte[] { ROM[i] });
if (i >= 0x013F)
{
ManufacturerCode += c;
}
Title += c;
}
}
