Listing 6

       SECTION VECTORS,$FFFO,CODE
_VECTORS:
       DW    timer                 ;$FFFO - SCI
       DW    serial        ;$FFF2 - TOF (Timer Overflow)
       DW    0             ;$FFF4 - OCF (Output Compare)
       DW    0             ;$FFF6 - ICF (Input Capture)
       DW    0             ;$FFF8 - IRQ1 (or IS3)
       DW    0             ;$FFFA - SWI (Software Interrupt)
       DW    0             ;$FFFC - NMI (Non-maskable Interrupt)
       DW    main          ;$FFFE - RESET (Hardware Reset)