misc/obsolete-ships/MultiplierShip.java

   1 package edu.berkeley.fleet.interpreter.ships;
   2 import edu.berkeley.fleet.interpreter.*;
   3 import edu.berkeley.fleet.*;
   4
   5 import java.util.*;
   6 import java.io.*;
   7
   8 /**
   9  * @author Dominic Antonelli <dantonel@berkeley.edu>
  10  */
  11 public class MultiplierShip extends InterpreterShip {
  12
  13     private int link;
  14
  15     DataInbox A = new DataInbox(this, "A");
  16     DataInbox B = new DataInbox(this, "B");
  17     DataOutbox out0 = new DataOutbox(this, "out0");
  18     DataOutbox out1 = new DataOutbox(this, "out1");
  19
  20     public MultiplierShip(Interpreter fleet, String name) {
  21         super(fleet, name);
  22     }
  23
  24     public void service() {
  25         if (!out0.readyForDataFromShip()) return;
  26         if (!out1.readyForDataFromShip()) return;
  27         if (!A.dataReadyForShip()) return;
  28         if (!B.dataReadyForShip()) return;
  29
  30         long inA = (long)A.removeDataForShip();
  31         long inB = (long)B.removeDataForShip();
  32         long result = inA * inB;
  33         int result0 = (int)(result >> 32);
  34         int result1 = (int)(result & 0xffffffff);
  35
  36         out0.addDataFromShip(result0);
  37         out1.addDataFromShip(result1);
  38     }
  39 }