Final fix to rom_sbs.pl for Bug 3358
Sadly the rom.pl code did not work when the script was run from the root directory (Bug 3381)
T_SERIAL OK
T_SOUND OK except for FreeLogicalDevice bits
T_ATADRV OK
T_IDRV OK
T_PCCD1 Not yet implemented
T_PCCD2 Not yet implemented
T_PCCD3 Not yet implemented
T_POWR OK
T_HAL OK
T_INF OK
T_PTNOS Not yet implemented
T_RESET
T_PS OK
T_COLOUR OK
T_WWINS OK