title: 8051 Assembly Sum Program With EdSim51
body: <p>I am newbie when it comes to assembly and 8051, so I need a little help. I want to make this Sum program that saves E887h in 50h and 77DDh in 52h. Then it should Sum them in 70h. I tried making the program, but it looks like I am making mystake somewhere. Here's my code:</p>
  
  <pre><code>mov 50h,#0E877h
  mov 52h,#77DDh
  mov a,50h
  add a,52h
  mov 70h,a
  end 
  </code></pre>