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Power Programmierung
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Power-Programmierung (Tewi)(1994).iso
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assemblr
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library
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zenlib
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lst10_9.asm
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Assembly Source File
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1990-02-15
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501b
|
23 lines
;
; *** Listing 10-9 ***
;
; Sets every element of a 1000-byte array to 1 by
; repeating STOSB 1000 times.
;
jmp Skip
;
ARRAY_LENGTH equ 1000
ByteArray db ARRAY_LENGTH dup (?)
;
Skip:
call ZTimerOn
mov di,seg ByteArray
mov es,di ;point ES:DI to the array to fill
mov di,offset ByteArray
mov al,1 ;we'll fill with the value 1
mov cx,ARRAY_LENGTH ;# of bytes to fill
cld ;make STOSB increment DI after
; each execution
rep stosb ;initialize the array
call ZTimerOff