APPENDIX TWELVE



64537          FC19           KIR
     Keyboard IRQ processing routines; check and process charac-
     ter, CONTROL-1, HELP key, CONTROL and function keys (1200XL;
     although the code for function keys remains in the 800XL and
     XE series)

64708          FCC4	      FDL
     Process display list interrupt for fine scrolling.

64728          FCD8           CIN
     Cassette initialization routine, followed by cassette I/O routines
     and table of NTSC/PAL constants for file leader length and
     beep duration.

65177          FE99           PIN
     Printer initialization and I/O routines including:

Address        Routine
     65218/FEC2     Printer OPEN
     65227/FECB     Printer put-byte
     65261/FEED     Fill printer buffer
     65270/FEF6     Perform printer put
     65287/FF07     Printer CLOSE
     65300/FF17     Set up DCB for printer
     65348/FF44     Printer timeout from STATUS
     65355/FF4B     Process print mode

65395          FF73           VFR
     ROM checksum verify routines for first 8K bank.

65426          FF92           VSR
     Verify routines for ROM checksum, second 8K bank, including
     routines to examine checksum region and table of addresses to
     verify.

65518-65529    FFEE-FFF9      ....
     Checksum and identification data for the ROM area
     57344-65535 ($E000-$FFFF--see 49152, $C000 for more
     information):

     Byte              Use
     65518/FFEE        Revision date D1 and D2 (four-bit BCD)
     65519/FFEF        Revision date M1 and M2
     65520/FFF0        Revision date Y1 and Y2
     65521/FFF1        Option byte; should read 1 for the
                       1200XL (my 800XL reads 2)
     65522-26/FFF2-6   Part number in the form AANNNNNN