Эмулятор процессора Intel 8086 версия 4.05 (ENG) / asm_files / cmpsb.asm

Assembler Source Code a:link {text-decoration: none} a:visited {text-decoration: none} a:hover {text-decoration: none; color:#ff0000}     ; cmpsb.asm ; how to use cmpsb instruction to compare byte strings. name "cmpsb" org 100h ; set forward direction: cld ; load source into ds:si, ; load target into es:di: mov ax, cs mov ds, ax mov es, ax lea si, str1 lea di, str2 ; set counter to string length: mov cx, size ; compare until equal: repe cmpsb jnz not_equal ; "yes" - equal! mov al, 'y' mov ah, 0eh int 10h jmp exit_here not_equal: ; "no" - not equal! mov al, 'n' mov ah, 0eh int 10h exit_here: ; wait for any key press: mov ah, 0 int 16h ret ; strings must have equal lengths: x1: str1 db 'test string' str2 db 'test string' size = ($ - x1) / 2

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