Problem-Solving-AssemblyLanguage/sum&sub.asm at master · rhidoyhasanmahmud/Problem-Solving-AssemblyLanguage · GitHub

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; You may customize this and other start-up templates;
; The location of this template is c:\emu8086\inc\0_com_template.txt

org 100h

; add your code here

    MOV AH,1    ;input function
    INT 21H
    MOV BL,AL

    mov ah,2
    mov dl,'+'
    int 21h
    mov ah,1

    INT 21H
    MOV BH,AL

    mov ah,2
    mov dl,'-'
    int 21h
    mov ah,1

    INT 21H
    MOV CL,AL


    ADD BL,BH
    SUB BL,CL

    MOV AH,2    ;output function

    ;new line
    ;MOV DL,0AH
    ;INT 21H
    ;MOV DL,0DH
    ;INT 21H
        mov ah,2
        mov dl,'='
        int 21h

    ;ans printing
    MOV DL,BL
    INT 21H

ret