src/edu/berkeley/fleet/loops/Program.java

   1 package edu.berkeley.fleet.loops;
   2 import edu.berkeley.fleet.api.*;
   3 import java.util.*;
   4 import java.net.*;
   5
   6 /**
   7  *  A program is a collection of CodeBags resident in a particular Memory.
   8  */
   9 public class Program {
  10
  11     private Ship memoryShip;
  12     private Fleet fleet;
  13     private long leastUnallocatedAddress;
  14     private long startAddress;
  15
  16     private HashSet<CodeBag> codeBags = new HashSet<CodeBag>();
  17
  18     public Program(Ship memoryShip) { this(memoryShip, 0); }
  19     public Program(Ship memoryShip, long startAddress) {
  20         this.fleet = memoryShip.getFleet();
  21         this.memoryShip = memoryShip;
  22         this.startAddress = startAddress;
  23         this.leastUnallocatedAddress = startAddress;
  24     }
  25
  26     public void run(FleetProcess fp, CodeBag run) {
  27         System.out.println("invoking...");
  28         Context ctx = new Context(fleet);
  29         LoopFactory lf;
  30         lf = new LoopFactory(ctx, memoryShip.getDock("inCBD"), 1);
  31         lf.literal( (run.baseAddress<<6) | run.instructions.length );
  32         lf.deliver();
  33         ctx.dispatch(fp);
  34         System.out.println("invoked.");
  35     }
  36
  37     public void install(FleetProcess fp) {
  38         BitVector[] bvs = new BitVector[(int)(leastUnallocatedAddress-startAddress)];
  39         int j = 0;
  40         for(CodeBag cb : codeBags)
  41             for(int i=0; i<cb.instructions.length; i++)
  42                 bvs[j++] = fleet.encodeInstruction(cb.instructions[i], memoryShip.getDock("out"));
  43         System.out.println("writing... ("+bvs.length+" words)");
  44         MemoryUtils.writeMem(fp, memoryShip, startAddress, bvs);
  45         System.out.println("written.");
  46     }
  47
  48     public CodeBag makeCodeBag(Context ctx) {
  49         Instruction[] instructions = ctx.emit();
  50         CodeBag codeBag = new CodeBag(this, instructions, leastUnallocatedAddress);
  51         System.out.println("instructions.length="+instructions.length);
  52         leastUnallocatedAddress += instructions.length;
  53         codeBags.add(codeBag);
  54         return codeBag;
  55     }
  56
  57 }