sumTwoNumber.asm

.model small
.stack 100
.data
    inputA db 'Nhap so A = $'
    inputB db 'Nhap so B = $'
    outputResult db 'Tong A + B = $'
    CLRF db 13, 10, '$'
.code
    main proc
    mov ax, @data
    mov ds, ax

    mov ah, 9         ; hien thi "Nhap so A = "
    lea dx, inputA
    int 21h

    call inputDec     ; goi CTC nhap so thu nhat he 10
    push ax           ; luu ax da nhap lai
    call nextLine     ; xuong dong

    mov ah, 9         ; lam tuong tu voi so thu hai
    lea dx, inputB
    int 21h

    call inputDec
    mov bl, al
    call nextLine

    pop ax            ; goi ax tu Stack ra
    call sum          ; goi ham tinh tong 2 so (trong ax va bx)
    push ax           ; luu ax lai

    mov ah, 9         ; hien thi KQ
    lea dx, outputResult
    int 21h

    pop ax
    call outputDec    ; goi CTC hien thi KQ

    mov ah, 4ch
    int 21h


    main endp

    sum proc          ; CTC con tinh tong 2 so
        add ax, bx
        ret
    sum endp

    nextLine proc     ; CTC xuong dong
        mov ah, 9
        lea dx, CLRF
        int 21h
        ret
    nextLine endp

    include include\inputDecProc.asm     ; tep chua CTC nhap so he 10
    include include\outputDecProc.asm    ; tep chua CTC hien thi so he 10
end main