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Assembly Source File  |  1990-02-15  |  248 b   |  17 lines
  1. ;
  2. ; *** Listing 4-1 ***
  3. ;
  4. ; Measures the performance of a loop which uses a
  5. ; byte-sized memory variable as the loop counter.
  6. ;
  7.     jmp    Skip
  8. ;
  9. Counter    db    100
  10. ;
  11. Skip:
  12.     call    ZTimerOn
  13. LoopTop:
  14.     dec    [Counter]
  15.     jnz    LoopTop
  16.     call    ZTimerOff
  17.