public static int GetMAMEBlockInfo(int lba, int[] table, byte disk_type, out int blocksize)
{
int pzone = Leo.LBAToPZone(lba, disk_type);
int physinfo = Leo.LBAToPhys(lba, table);
int cylinder = physinfo & 0xFFF;
int cylinder_zone = cylinder - Leo.OUTERCYL_TBL[(pzone < 8) ? pzone % 8 : pzone - 8];
int head = (physinfo & 0x1000) != 0 ? 1 : 0;
int block = (physinfo & 0x2000) != 0 ? 1 : 0;
blocksize = Leo.BLOCK_SIZES[(pzone < 8) ? pzone % 8 : pzone - 7];
//PZone Offset
int mameoffset = Leo.MAMEStartOffset[pzone];
//Track Offset
mameoffset += ((blocksize * 2) * cylinder_zone);
//Block Offset
mameoffset += (blocksize * block);
return(mameoffset);
}
public static int GetMAMEBlockInfo(int lba, byte[] sys_data)
{
byte disk_type = (byte)(sys_data[5] & 0x0F);
int pzone = Leo.LBAToPZone(lba, disk_type);
int physinfo = Leo.LBAToPhys(lba, sys_data);
int cylinder = physinfo & 0xFFF;
int cylinder_zone = cylinder - Leo.OUTERCYL_TBL[(pzone < 8) ? pzone % 8 : pzone - 8];
int head = (physinfo & 0x1000) >> 12;
int block = (physinfo & 0x2000) >> 13;
int blocksize = Leo.BLOCK_SIZES[(pzone < 8) ? pzone % 8 : pzone - 7];
//PZone Offset
int mameoffset = Leo.MAMEStartOffset[pzone];
//Track Offset
mameoffset += ((blocksize * 2) * cylinder_zone);
//Block Offset
mameoffset += (blocksize * block);
return(mameoffset);
}
