assembly - I am trying to add two values of array and store it in the next array -


the code below suppose sort array named "array". ignore zeros have, add 2 lowest digits , store value new array named "parent". bubble sorting sorts arrays accurately .but not doing suppose to. can please me that?

    ;huffman seperation      lea dx,prompt_1       ;moving address of prompt_1 message     call display          ;displays prompt_1 message     lea si,array          ;moving address of array in source index     call print_array      ;prints whole array on screen     lea si,array          ;moving address of array in source index     call bubble_sort      ;sorting algorithm sort array     lea dx, prompt_2      ;load , display string prompt_2     call display     lea si, array         ;set si=offset address of array     lea di, parent        ;loading address of parent array in di     call print_array      ;call procedure print_arrayt     mov ax, 0             ;used moving address of array during addition     mov cx,512            ;512 times calculation should performed     lea si,array          ;si= pointer array  huffloop: calculation:     mov bx,[si]           ;loading address of array in bx     cmp bx,'0'            ;if array has 0 value jump skipstep     jnz skipstep condition:     add si+1,si           ;if condition satisfies add first 2 array contents     mov di,si+1           ;copying resultant value parent array     mov  [si],0           ;replacing first lowest value in array 0     lea dx,prompt_1       ;displaying result on screen     call display     lea si,array     call print_array     lea si,array     call bubble_sort      ;doing bubble sorting again repeating step     lea dx, prompt_2      ;load , display string prompt_2     call display     lea si, array         ;set si=offset address of array     call print_array      ;call procedure print_array     mov ax,0 skipstep:     add si,2              ;moving next array address     jmp calculation       ;jumping calculation function     jnz huffloop          ;jumping huffloop endofhuff:

apart fact code won't assemble, here logical error:

calculation:     mov bx,[si]           ;loading address of array in bx     cmp bx,'0'            ;if array has 0 value jump skipstep     jnz skipstep condition:     ... skipstep:

the jnz wrong. branch skipstep taken whenever data not character '0', '0' processed loop. test should be

    cmp bx,'0'            ;if array has 0 value jump skipstep     jz skipstep

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