10_2_ru.asm

_str$ = 8                        ; size = 4
_strlen PROC
    mov    ecx, DWORD PTR _str$[esp-4] ; ECX -> óêàçàòåëü íà ñòðîêó
    mov    eax, ecx                    ; ïåðåëîæèòü â EAX
$LL2@strlen_:
    mov    dl, BYTE PTR [eax]          ; DL = *EAX
    inc    eax                         ; EAX++
    test   dl, dl                      ; DL==0?
    jne    SHORT $LL2@strlen_          ; íåò, ïðîäîëæàåì öèêë
    sub    eax, ecx                    ; âû÷èñëÿåì ðàçíèöó óêàçàòåëåé
    dec    eax                         ; äåêðåìåíò EAX
    ret    0
_strlen_ ENDP