Saturday, December 11, 2010

Sum of two multidigit digit number

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        print macro msg         lea dx,msg         mov ah,09h         int 21h     endm     read macro n,j1,j2         mov cx,0ah     j1:mov ah,01h         int 21h         cmp al,0dh         je j2         sub al,30h         mov bl,al         mov ax,n         mul cx         xor bh,bh         add ax,bx         mov n,ax         jmp j1     j2 :nop     endm     .model small     .stack 100h     .data         msg1 db 10,13,'Enter the 1st number: $'         msg2 db 10,13,'Enter the 2nd number: $'         msg3 db 10,13,'The Sum= $'         num1 dw 0         num2 dw 0     .code     main proc         mov ax,@data         mov ds,ax         print msg1         ;reading 1st multidigit number         read num1,jump1,jump2         print msg2         ;reading 2nd multidigit number         read num2,jump3,jump4         ;finding sum         mov ax,num1         add ax,num2         ;printing number         mov bx,000ah         xor cx,cx         ;push into stack     p1:xor dx,dx         div bx         push dx         inc cx         cmp ax,0000h         jne p1         print msg3         ;pop from stack     display:pop dx         add dl,30h         mov ah,02h         int 21h         loop display         mov ah,4ch         int 21h     main endp     end

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