title: Assembly adding two numbers
body: <p>I'm started 30 hours ago on learning assembly
  and I'm trying to do a activity, I can run some of the code
  but I cannot print the sum of the two numbers, whats wrong with my code?</p>
  
  <p>this is my current output</p>
  
  <pre><code>Enter First Number:
  Enter Second Number:
  </code></pre>
  
  <p>but the some wont print</p>
  
  <p>here is my code</p>
  
  <pre><code>.MODEL small
  .STACK 100h
  .DATA
  
          operation db, 13, 10, "Addition $"
          message1 db 13, 10, "Enter First Number: $"
          message2 db 13, 10, "Enter second Number: $"
          message3 db 13, 10, "Sum: $"
          newline db 13, 10, "$"
  
          nameinput label byte
          maxnamelen db 50
          curnamelen db ?
          namefield db 50 dup(?)
  
  .CODE
  start:
          mov ax, @data
          mov ds,ax
  
          mov ah,09h
          mov dx, offset operation
          int 21h
  
          mov ah, 01h
          int 21h
  
          cmp al, '1'
          je Addition
  
          Addition:
          mov ah, 09h
          mov dx, offset message1
          int 21h
          mov ah, 01h
          int 21h
  
          mov ah, 09h
          mov dx, offset newline
          int 21h
  
          mov ah, 09h
          mov dx, offset message2
          int 21h
          mov ah, 01h
          int 21h
  
          add al, bl
          mov ah, 09h
          mov dx, offset newline
          int 21h
  
          mov ax, 4c00h
          int 21h
  
          END
  </code></pre>