private bool IsAsciiString(Rom rom, int start, int length)
{
for (int i = start; i < start + length; i++)
{
if (rom.Byte(i) < 0x20 || rom.Byte(i) > 0x7E)
{
return(false);
}
}
return(true);
}
private int GetHiRomScore(Rom rom)
{
int score = 0;
if (rom.Word(0xFFDC) + rom.Word(0xFFDE) == 0xFFFF)
{
score += 2;
}
if (rom.Byte(0xFFDA) == 0x33)
{
score += 2;
}
if ((rom.Byte(0xFFD5) & 0xf) < 4)
{
score += 2;
}
if ((rom.Byte(0xFFFD) & 0x80) == 0)
{
score -= 4;
}
if ((1 << (rom.Byte(0xFFD7) - 7)) > 48)
{
score -= 1;
}
if (!IsAsciiString(rom, 0xFFB0, 6))
{
score -= 1;
}
if (!IsAsciiString(rom, 0xFFC0, 20))
{
score -= 1;
}
return(score);
}
private void ReadHeader(Rom rom)
{
var startAddress = rom.BankSize - 0x40;
rom.Header.Title = rom.String(startAddress, 21);
rom.Header.Makeup = RomMakeup.Parse(rom.Byte(startAddress + 0x15));
rom.Header.Type = rom.Byte(startAddress + 0x16);
rom.Header.RomSize = rom.Byte(startAddress + 0x17);
rom.Header.SramSize = rom.Byte(startAddress + 0x18);
rom.Header.CreatorLicenseIdCode = rom.Byte(startAddress + 0x19);
rom.Header.VersionNum = rom.Byte(startAddress + 0x1B);
rom.Header.ChecksumComplement = rom.Word(startAddress + 0x1C);
rom.Header.Checksum = rom.Word(startAddress + 0x1E);
}
