// file:    cio.isc
// author:  Robert Keller 
// purpose: minimal ISC program showing console input/output loop
// This program reads two numbers in succession from the console input
// adds them, then stores the result on the console output.

use temp1
use temp2

//
// The main program starts here
//

origin 0                         // start loading instructions at location 0

use loop_address                 // use reg to hold address for looping back
      lim loop_address loop      // initialize address register

label loop
      cin temp1
      cin temp2
      add temp1 temp1 temp2
      cout temp1
      junc loop_address          // go back