25 Program to add two 32 BIt numbers in 8086 Microprocessor

; Program to add two 32 bit number
.model small
.stack 100
.data
   num1 dd 12345678h
   num2 dd 12345678h
   res  dw  ?
.code
   mov ax , @data ; initializing data segment
   mov dx , ax

   mov ax , word ptr num1 ; It points the first four digit of num1 i.e 5678
   mov bx , word ptr num1+2 ; num + 2 it adds to the lsb address so it goes to point 1234

   mov cx , word ptr num2 ; It points the first four digit of num1 i.e 5678
   mov dx , word ptr num2+2 ; num + 2 it adds to the lsb address so it goes to point 1234

   add ax , cx

   adc bx , dx ; add with carry

   mov word ptr res ,ax ; Moving lsb part
   mov word ptr res+2 ,bx ; moving msb part

   mov ah , 4ch ; Service routine for exit
   int 21h
end

• Tweet
• Share
• Share
• Share

Related Post