title: command illegal or legal (Assembley 8086)
body: <pre><code>  DSEG SEGMENT 
  
     A1 DW 12
     A2 DB 2 DUP (12H,34,'2','B')
  DSEG ENDS
  </code></pre>
  
  <p>I have this 2 commands </p>
  
  <pre><code>1. MOV WORD PTR A2+1[BX+DI],SI
    2. NOT BYTE PTR A1+1[BX+SI][DI]
  </code></pre>
  
  <p>ARE THEY ILLEGAL OR NOT?</p>