📄 cmpsb.asm
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TITLE Comparing Strings (Cmpsb.asm)
; This program uses CMPSB to compare two strings
; of equal length.
INCLUDE Irvine.inc
.data
source BYTE "MARTIN "
dest BYTE "MARTINEZ"
str1 BYTE "Source is smaller",0dh,0ah,0
.code
main PROC
startup
cld ; direction = up
mov esi,OFFSET source
mov edi,OFFSET dest
mov cx,LENGTHOF source
repe cmpsb
jb source_smaller
jmp quit
source_smaller:
mov edx,OFFSET str1
call WriteString
quit:
exit
main ENDP
END main
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