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Power-Programmierung
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CD1.mdf
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assemblr
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library
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zenlib
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lst9_20.asm
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Assembly Source File
|
1990-02-15
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322b
|
19 lines
;
; *** Listing 9-20 ***
;
; Times the performance of SUB with memory as the
; destination operand and a register as the source operand.
;
jmp Skip
;
Dest db 0
;
Skip:
call ZTimerOn
rept 1000
sub [Dest],al ;subtract AL from [Dest]
; Two memory accesses are
; performed
endm
call ZTimerOff