Assembly Programming: Lab10 Objectives: Code and test simple assembly programs. Step 1. The following code copies a string from source to target: .data source BYTE "This is the source string",0 target BYTE SIZEOF source DUP(0) .code L1: mov esi,0 mov ecx,SIZEOF source mov al,source[esi] mov target[esi],al inc esi loop L1 mov edx, OFFSET source call WriteString mov edx, OFFSET target call WriteString ; index register ; loop counter ; get char from source ; store it in the target ; move to next character ; repeat for entire string Rewrite the program using indirect addressing rather than indexed addressing. [Hint] Use OFFSET operator to save the base address of source and target.

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.T-Mobile LTE
x
.code
L1:
5:16 PM
Lab10.docx
Assembly Programming: Lab10
Objectives: Code and test simple assembly programs.
Step1. The following code copies a string from source
to target:
.data
source BYTE "This is the source string",0
target BYTE SIZEOF source DUP(0)
mov esi,0
mov ecx,SIZEOF source
mov al,source[esi]
mov target[esi],al
inc esi
loop L1
mov edx, OFFSET source
call WriteString
mov edx, OFFSET target
call WriteString
; index register
; loop counter
; get char from source
; store it in the target
55% 44
; move to next character
; repeat for entire string
Rewrite the program using indirect addressing rather
than indexed addressing. [Hint] Use OFFSET operator
to save the base address of source and target.
Transcribed Image Text:.T-Mobile LTE x .code L1: 5:16 PM Lab10.docx Assembly Programming: Lab10 Objectives: Code and test simple assembly programs. Step1. The following code copies a string from source to target: .data source BYTE "This is the source string",0 target BYTE SIZEOF source DUP(0) mov esi,0 mov ecx,SIZEOF source mov al,source[esi] mov target[esi],al inc esi loop L1 mov edx, OFFSET source call WriteString mov edx, OFFSET target call WriteString ; index register ; loop counter ; get char from source ; store it in the target 55% 44 ; move to next character ; repeat for entire string Rewrite the program using indirect addressing rather than indexed addressing. [Hint] Use OFFSET operator to save the base address of source and target.
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