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???
01/04/08 15:51
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#149045 - NOPs are so bad waste of space...
Responding to: ???'s previous message
For vanilla '51:
   mov   a,r7
   add   a,#-offset
   clr   c
   rrc   a
   djnz  acc,$
   jnc   xxx
   nop
xxx:
   ret
Of course I see the relative merit of the "noparray" solution for the singleclockers, although I doubt one really will need THIS sort of "variable precision" ever.

JW

List of 27 messages in thread
TopicAuthorDate
Number of CPU cycle for 8051 function call            01/01/70 00:00      
   Do it in assembler            01/01/70 00:00      
   Delay functions            01/01/70 00:00      
   A related trick            01/01/70 00:00      
      Offset            01/01/70 00:00      
         Offset            01/01/70 00:00      
            Sure            01/01/70 00:00      
               Over Drive?            01/01/70 00:00      
      a refinement            01/01/70 00:00      
      NOPs are so bad waste of space...            01/01/70 00:00      
         waste of space... waste of time            01/01/70 00:00      
            fixed delay            01/01/70 00:00      
               Variable delay            01/01/70 00:00      
                  determinism of the cache            01/01/70 00:00      
               there are no cache misses in 'linear code'            01/01/70 00:00      
                  I got only ONE cache miss...            01/01/70 00:00      
      Old Keil Thread            01/01/70 00:00      
   What about a Delay like this.            01/01/70 00:00      
      No, it won't.            01/01/70 00:00      
         Ok.            01/01/70 00:00      
         also            01/01/70 00:00      
      Also ...            01/01/70 00:00      
         Actually...            01/01/70 00:00      
            will.            01/01/70 00:00      
               ANSI C            01/01/70 00:00      
                  Keil option: Disable ANSI casts            01/01/70 00:00      
         typo.            01/01/70 00:00      

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