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Graphics Programming Black Book (Special Edition)
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zoa
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zen_list.exe
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LST4-7.ASM
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Assembly Source File
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1990-02-15
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248b
|
14 lines
;
; *** Listing 4-7 ***
;
; Measures the performance of repeated MOV AL,0 instructions,
; which take 4 cycles each according to Intel's official
; specifications.
;
sub ax,ax
call ZTimerOn
rept 1000
mov al,0
endm
call ZTimerOff