how to display the smallest value in my code in emu8086? - emu8086

Question

I had made a code that display the largest but then my teacher ask us to make another one that input 3 numbers and display the smallest value.
here is the code:
org 100h
jmp start
msg1 db 10,13,"Enter first number: $"
msg2 db 10,13,"Enter second number: $"
msg3 db 10,13,"Enter third Number: $"
num1 db ?
num2 db ?
num3 db ?
start:
lea dx, msg1
mov ah, 9
int 21h
mov ah, 1
int 21h
mov num1, al
lea dx, msg2
mov ah, 9
int 21h
mov ah, 1
int 21h
mov num2, al
lea dx, msg3
mov ah, 9
int 21h
mov ah, 1
int 21h
mov num3, al
mov bl, num1
cmp bl, num2
jng number2
cmp bl, num3
jng number3
mov ah, 2
mov dl, num1
int 21h
jmp escape
number2:
mov bl, num2
cmp bl, num3
jng number3
mov ah, 2
mov dl, num2
jmp escape
number3:
mov ah, 2
mov dl, num3
int 21h
escape:
ret
sample output:
1st no. i enter 3
2nd no, i enter 2
3rd no, i enter 1
and the largest is 3 but the output will be 13 because i don't know how to put space on my code :D...
Pls help!!! XD Also it's my first time posting this... so sorry for my bad grammar ty.

Answer 1

mov ah, 2
mov dl, num2
jmp escape
In this part your program forgot to actually call DOS with int 21h.
i don't know how to put space on my code
Just use the following everywhere you need some space between outputs on the same line:
mov ah, 2
mov dl, " "
int 21h
Or put items on different lines using:
mov ah, 2
mov dl, 10
int 21h
mov dl, 13
int 21h
A nicer solution would be to display a suitable message before outputting the number:
msg4 db 10,13,"Smallest value: $"
...
lea dx, msg4
mov ah, 9
int 21h
my teacher ask us to make another one that input 3 numbers and display the smallest value.
Simply change all of those jng (jump on not greater) instructions by the jnl (jump on not less) instruction.
This is a slightly better version of your code and using jnl:
mov bl, num1
cmp bl, num2
jnl number2
cmp bl, num3
jnl number3
mov dl, num1
jmp Print
number2:
mov bl, num2
cmp bl, num3
jnl number3
mov dl, num2
jmp Print
number3:
mov dl, num3
Print:
mov ah, 2
int 21h
ret
Good luck monday!