;printing a string
prints macro str
        push ax
        push bx
        push cx
        push dx
        push si
        mov ah,09h
        lea dx,str
        int 21h
        pop si
        pop dx
        pop cx
        pop bx
        pop ax
endm prints


;accepting a number between 0 and 255
readi macro no
                local loop1
        push ax
        push bx
        push cx
        push dx
        push si

                mov al,00
                mov dl,10
                mov bl,00
        loop1:  mov cl,al
                mov al,bl
                mul dl
                add al,cl
                mov bl,al
                mov ah,01h
                int 21h
                sub al,30h
                cmp al,0ddh
                jne loop1
                mov no,bl
        pop si
        pop dx
        pop cx
        pop bx
        pop ax

endm readi
;printing a number from 0 to 255
printi macro num
                local divide,printing
        push ax
        push bx
        push cx
        push dx
        push si

                mov bl,10
                mov cx,0
divide:         mov ax,0
                mov al,num
                div bl
                mov dx,0
                mov dl,ah
                add dl,30h
                push dx
                inc cx
                mov num,al
                cmp num,0
                jne divide
printing:       pop dx
                mov ah,02h
                int 21h
                loop printing
        pop si
        pop dx
        pop cx
        pop bx
        pop ax

endm printi

;printing a number between 0 and 32768 from word
printw macro num
                local divide
                local printing
        push ax
        push bx
        push cx
        push dx
        push si
                mov bx,10
                mov cx,0
divide:         mov ax,num
                mov dx,00
                div bx
                add dl,30h
                push dx
                inc cx
                mov num,ax
                cmp num,0
                jne divide
printing:       pop dx
                mov ah,02h
                int 21h
                loop printing
        pop si
        pop dx
        pop cx
        pop bx
        pop ax

endm printw

;reading a string
reads macro str
        local loop1
        push ax
        push bx
        push cx
        push dx
        push si
        mov ah,3fh
        mov bx,00
        mov cx,40
        lea dx,str
        int 21h
        mov cx,00
        lea bx,str
loop1:  mov ah,[bx]
        inc bx
        inc cx
        cmp ah,13
        jne loop1
        dec bx
        mov [bx],'$'
        mov len,cx
        pop si
        pop dx
        pop cx
        pop bx
        pop ax
endm reads

;exiting from program
exit macro
        mov ah,4ch
        int 21h
endm exit