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Modify the program in Figure 5.9 of our text (Detmer), replacing the second loop by one that changes each number that is larger than the average to zero. Show your full source code and screenshots of your working program.
; given an array of doubleword integers, (1) find their average
; and (2) add 10 to each number smaller than average
; author: R. Detmer
; revised: 6/2013
.586
.MODEL FLAT
.STACK 4096
.DATA
nbrArray DWORD 25, 47, 15, 50, 32, 95 DUP (?)
nbrElts DWORD 5
.CODE
main PROC
; find sum and average
mov eax,0 ; sum := 0
lea ebx,nbrArray ; get address of nbrArray
mov ecx,nbrElts ; count := nbrElts
jecxz quit ; quit if no numbers
forCount1: add eax,[ebx] ; add number to sum
add ebx,4 ; get address of next array elt
loop forCount1 ; repeat nbrElts times
cdq ; extend sum to quadword
idiv nbrElts ; calculate average
; add 10 to each array element below average
lea ebx,nbrArray ; get address of nbrArray
mov ecx,nbrElts ; count := nbrElts
forCount2: cmp [ebx],eax ; number < average ?
jnl endIfSmall ; continue if not less
add DWORD PTR [ebx], 10 ; add 10 to number
endIfSmall:
add ebx,4 ; get address of next array elt
loop forCount2 ; repeat
quit: mov eax, 0 ; exit with return code 0
ret
main ENDP
END
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