APPENDIX TWELVE



     65527/FFF7        Revision number (again, mine reads 2)
     65528-9/FFF8-9    Checksum, bytes (LSB/MSB)

     65527 and 65528 should read 221 ($DD) and 87 ($57) for the
     400/800 revision A ROMS; 243 ($F3) and 230 ($E6) for the B
     ROMS. PAL versions read 214/87 ($D6/$57) and 34/88 ($22/$58),
     respectively. The 1200XL should read 10 at 65527 for revision A
     and 11 for revision B. The 600XL should read 1 at 65527, and the
     800XL, 2. For the 1200XL, 64728 ($FCD8) should not read 162
     ($A2).

65530-65535    FFFA-FFFF      Machine vectors
     Contain NMI, RESET (power-up), and IRQ service vectors, initial-
     ized to 49176 ($C0l8), 49834 ($C2AA), and 49196 ($C02C),
     respectively.