Simple Arithmetic

code.asm

Takes two 8-bit numbers as input from the user Adds the numbers and stores the result in the AX register. Multiplies the numbers and stores the result in the BX register. Displays the results.

DATA SEGMENT 
    MSG1 DB "Enter first number (0-9): $"
    MSG2 DB "Enter second number (0-9): $"
    RESULT_SUM DB "Sum is: $"
    Result_MUL DB "Product is: $"
DATA ENDS

CODE SEGMENT
    ASSUME CS:CODE, DS:DATA
    START:
        MOV AX, DATA
        MOV DS, AX

        ; Prompt for the first number
        MOV AH, 09H
        LEA DX, MSG1
        INT 21H

        ; Read the first number
        MOV AH, 01H
        INT 21H
        SUB AL, '0'
        MOV BL,AL

        ; Prompt for the second number
        MOV AH, 09H
        LEA DX, MSG2
        INT 21H

        ; Read the first number
        MOV AH, 01H
        INT 21H
        SUB AL, '0'
        MOV BH,AL

        ; Calculate sum
        MOV AL,BL
        ADD AL, BH
        ADD AL, '0'

        ; Display sum
        MOV AH, 09H
        LEA DX, RESULT_SUM
        INT 21H
        MOV DL, AL
        MOV AH,02H
        INT 21H

        ; Calculate product
        MOV AL, BL
        MUL BH
        ADD AL, '0'

        ; Display product
        MOV AH, 09H
        LEA DX, RESULT_MUL
        INT 21H
        MOV DL, AL
        MOV AH, 02H
        INT 21H

        ; Exit program
        MOV AX, 4C00H
        INT 21H
CODE ENDS
END START