Assembly Program 8086 - Addition of two 8-bit numbers

In assembly language 8086 we use mnemonics in order to perform arithmetic operations like ADD/ADC in addition.
So, Let's dive deep into ADD and ADC ...Scroll Down for Program Code

ADD:- It adds number from source to destination without carry. Source can be memory location or register or a number but destination should be register or a memory location(not immediate number). Remember that source and destination should be of same type and both shouldn't be memory locations.

Syntax: ADD <destination> <source>
Operation: destination← destination + source

ADC:- It adds number from source to destination with carry i.e , adds carry flag into result of addition. Source can be memory location or register or a number but destination should be register or a memory location(not immediate number). Remember that source and destination should be of same type and both shouldn't be memory locations.

Syntax: ADC <destination> <source>
Operation: destination← destination + source + carry

Which flags get affected?
Ans- OF , CF, PF , AF, SF , ZF .


data segment

no1 db 02h

no2 db 03h

ans db ?

data ends

code segment

start : assume  cs :code,  ds :data

mov ax ,data

mov ds , ax

mov al , no1

mov bl ,no2

ADD al, b1

mov ans ,al

mov ah ,4ch

int 21h

code ends
end start

Addition / sum of two 16 bit nos

Multiply 8-bit numbers(unsigned)
Multiply 16-bit numbers(signed)
Subtract 8-bit numbers