PM L2

#make com#
Org 100h
Jmp start
a DB ?
b DB ?
c DB ?
M1 DB 'a=', '$'
M2 DB 13, 10, 'b=', '$'
M3 DB 13, 10, 'c=', '$'
M4 DB 13, 10, '$'
M5 DB ,'+', '$'
M6 DB ,'=', '$'
start:

lea dx, M1
mov ah, 09h
int 21h

mov ah, 01h
int 21h

sub al, 48
mov a, al
lea dx, M2
mov ah, 09h
int 21h

mov ah, 01h
int 21h

sub al, 48
mov b, al
lea dx, M3
mov ah, 09h
int 21h

mov ah, 01h
int 21h

sub al, 48
mov c, al
lea dx, M4
mov ah, 09h
int 21h

mov dl, a
add dl, 48
mov ah, 02h
int 21h

lea dx,M5
mov ah, 09h
int 21h

mov dl, b
add dl, 48
mov ah, 02h
int 21h

lea dx,M5
mov ah, 09h
int 21h

mov dl, c
add dl, 48
mov ah, 02h
int 21h

lea dx, M6
mov ah, 09h
int 21h

mov dl, a
add dl, b
add dl, c
add dl, 48
mov ah, 02h
int 21h
mov ah, 4Ch
int 21h