ROM program ID numbers so far allocated

        0:  Reserved
        1:  CharROM       - Character set ROM
        2:  NewMOS        - Extensions to BBC MOS
        3:  Command ROM   - Add *commands to sideways ROMs
        4:  Teletext Editor
        5:  Games Auto Boot ROM
        6:  HADFS         - Harston Advanced Disk Filing System
        7:  Z80 Emulator  - Emulates a Z80 CPU
        8:
        9:  Z80 BASIC     - BBCBASIC(Z80) with BBC file I/O
        10:
        11: DisAssem ROM  - Disassembly routines
        12:
        13:
        14:
        15:
        16: NFS Front     - Gives an NFS front to HADFS/ADFS