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Text File  |  1990-05-14  |  512b  |  20 lines
  1.     .hlist
  2. /
  3. /----   sio interrupt routines from page 19
  4. /
  5. next_addr       =       r65
  6. start           =       r66
  7. length          =       r30
  8. COUNT           =       96
  9. /
  10.     mov     r240,r240               / echo
  11.     mov     r240,(next_addr)
  12.     inc     next_addr
  13.     cmp     $COUNT, next_addr
  14.     bne     1f
  15.     mov     start, next_addr
  16. 1:      tcm     $0x10, r250
  17.     bne     1b
  18.     and     $0xef, r250
  19.     reti
  20.