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Associated article: Optimizing Pentium Code

Tags: Database     Parallel     Embedded Systems    

article presenting optimzing code for the Pentium processor.

					_OPTIMIZING PENTIUM CODE_
by Mike Schmit

Example 1:

                           ; with    without branch prediction
                           ; (cycles are for a case of non-space character)
   loop1:
        mov     al, [si]   ;  1       1
        inc     si         ;  0       0  (0 due to pairing)
        cmp     al, ' '    ;  1       1
        jne     foo        ;  0       3
        call    space      ;
        jmp     bar        ;
   foo:
        inc     ...
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