Addition of Two Numbers Using Procedure Call in 8086 Assembly Language

.model small

.code

main proc

    mov ah, 01h

    int 21h

    mov bl, al

    mov ah, 01h

    int 21h

    mov cl, al

    call addition

    call output

    main endp

addition proc

    add bl, cl

    sub bl, 30h

    mov dl, bl

    ret  

addition endp

output proc

    mov ah, 02h

    int 21h

    ret

    output endp

end main