proc atodw, String 
  ; ---------------------------------------- 
  ; Convert decimal string into dword value 
  ; return value in eax 
  ; ---------------------------------------- 
        push    esi 
        push    edi 
        xor     eax, eax 
        mov     esi, [String] 
        xor     ecx, ecx 
        xor     edx, edx 
        mov     al, [esi] 
        inc     esi 
        cmp     al, 2Dh 
        jnz     hmm ;<- the error here 
        mov     al, byte ptr [esi] 
        not     edx 
        inc     esi 
        jmp     hmm 
  @@: 
        sub     al, 30h 
        lea     ecx, dword [ecx+4*ecx] 
        lea     ecx, dword [eax+2*ecx] 
        mov     al, byte [esi] 
        inc     esi 
hmm: 
        or      al, al 
        jne     @B 
        lea     eax, dword [edx+ecx] 
        xor     eax, edx 
        pop     edi 
        pop     esi 
        return