src/edu/berkeley/fleet/interpreter/Interpreter.java

   1 package edu.berkeley.fleet.interpreter;
   2 import java.io.*;
   3 import java.util.*;
   4 import java.util.concurrent.*;
   5 import java.lang.reflect.*;
   6 import edu.berkeley.fleet.*;
   7 import edu.berkeley.sbp.util.ANSI;
   8 import edu.berkeley.fleet.doc.*;
   9 import edu.berkeley.fleet.api.*;
  10 import edu.berkeley.fleet.ies44.*;
  11
  12 public class Interpreter extends Fleet implements Fleet.WithDynamicShips {
  13
  14     /** some "halt ship" can turn this on to stop the interpreter */
  15     private HashMap<String,InterpreterShip> ships       = new HashMap<String,InterpreterShip>();
  16     private BlockingQueue<Long>             debugStream = new LinkedBlockingQueue<Long>();
  17
  18     public FleetProcess run(final byte[] instructions) {
  19         try {
  20             final FleetProcess fp = new FleetProcess() {
  21                     public void invokeInstruction(Instruction i) { throw new RuntimeException("not supported"); }
  22                     public long readWord() {
  23                         try {
  24                             return debugStream.take();
  25                         } catch (Exception e) {
  26                             throw new RuntimeException(e);
  27                         } }
  28                     protected void _terminate() {
  29                         // FIXME: hack
  30                         ships = new HashMap<String,InterpreterShip>();
  31                         debugStream = new LinkedBlockingQueue<Long>();
  32                     }
  33                 };
  34             new Thread() {
  35                 public void run() {
  36                     try {
  37                         // find the first icache
  38                         InterpreterShip iscratch = null;
  39                         for(Ship ship : Interpreter.this)
  40                             if (ship.getClass().getSimpleName().equals("Memory")) {
  41                                 iscratch = (InterpreterShip)ship;
  42                                 break;
  43                             }
  44                         if (iscratch==null)
  45                             iscratch = (InterpreterShip)Class.forName("edu.berkeley.fleet.interpreter.Memory")
  46                                 .getConstructor(new Class[] { Interpreter.class, String.class })
  47                                 .newInstance(new Object[] { Interpreter.this, "memory" });
  48                         iscratch
  49                             .getClass()
  50                             .getMethod("boot", new Class[] { byte[].class })
  51                             .invoke(iscratch, new Object[] { instructions });
  52
  53                         while(!fp.isTerminated())
  54                             for(InterpreterShip ship : ships.values())
  55                                 for(int j=0; j<10; j++)
  56                                     ship._service();
  57
  58                         // run the ships a bit longer for good measure
  59                         for(int i=0; i<100; i++)
  60                             for(InterpreterShip ship : ships.values())
  61                                 for(int j=0; j<10; j++)
  62                                     ship._service();
  63
  64                         // check the state of the ships
  65                         for(InterpreterShip ship : ships.values())
  66                             ship.shutdown();
  67
  68                         Log.println(ANSI.yellow("    DONE: ====== FLEET is halted.  Have a nice day.  ======"));
  69
  70                     } catch (Exception e) {
  71                         if (fp.isTerminated()) return;
  72                         throw new RuntimeException(e);
  73                     }
  74                 }
  75             }.start();
  76             return fp;
  77         } catch (Exception e) {
  78             throw new RuntimeException(e);
  79         }
  80     }
  81
  82     public void dispatch(Instruction i, long address) {
  83         Log.dispatch(i);
  84         if (i instanceof Instruction.Executable) {
  85             InterpreterBenkoBox sourceBenkoBox = (InterpreterBenkoBox)(((Instruction.Executable)i).benkoBox);
  86             ((InstructionBenkoBox)sourceBenkoBox).addInstruction(((Instruction.Executable)i));
  87
  88         } else if (i instanceof Instruction.Literal.CodeBagDescriptor) {
  89             Instruction.Literal.CodeBagDescriptor cbd = (Instruction.Literal.CodeBagDescriptor)i;
  90             long absolute_cbd = ((cbd.offset+address) << 6) | cbd.size;
  91             new Packet(this, null, (int)absolute_cbd, (InterpreterDestination)cbd.dest).send();
  92
  93         } else if (i instanceof Instruction.Literal.Absolute) {
  94             new Packet(this, null,
  95                        (int)((Instruction.Literal.Absolute)i).value,
  96                        (InterpreterDestination)(((Instruction.Literal.Absolute)i).dest)).send();
  97
  98         } else if (i instanceof Instruction.Kill) {
  99             InterpreterBenkoBox benkoBox = (InterpreterBenkoBox)(((Instruction.Kill)i).benkoBox);
 100             ((InstructionBenkoBox)benkoBox).kill(((Instruction.Kill)i).count,
 101                                              ((Instruction.Kill)i).killOnlyStandingInstructions);
 102
 103         } else {
 104             throw new Error("unsupported: " + i.getClass().getName());
 105         }
 106     }
 107
 108     public Iterator<Ship> iterator() { return (Iterator<Ship>)(Object)ships.values().iterator(); }
 109
 110     public Ship createShip(String shipType, String shipname) {
 111         try {
 112             Class c = Class.forName("edu.berkeley.fleet.interpreter."+shipType);
 113             Constructor con = c.getConstructor(new Class[] { Interpreter.class, String.class });
 114             InterpreterShip ret = (InterpreterShip)con.newInstance(new Object[] { this, shipname });
 115             ships.put(shipname, ret);
 116             return ret;
 117         } catch (Exception e) {
 118             return null;
 119         }
 120     }
 121
 122     public void debug(long data) {
 123         try {
 124             if (debugStream != null) debugStream.put(data);
 125             else Log.println(ANSI.invert("   DEBUG: got a datum: " +  data+ANSI.clreol()));
 126         } catch (Exception e) {
 127             throw new RuntimeException(e);
 128         }
 129     }
 130
 131     // Instruction Encoding /////////////////////////////////////////////////////////////////////////
 132
 133     private InterpreterInstructionEncoder iie = new InterpreterInstructionEncoder();
 134     public Instruction readInstruction(DataInputStream is) throws IOException { return iie.readInstruction(is); }
 135     public Instruction readInstruction(long instr) { return iie.readInstruction(instr); }
 136     public long writeInstruction(Instruction d) { return writeInstruction(d); }
 137     public void writeInstruction(DataOutputStream os, Instruction d) throws IOException { iie.writeInstruction(os, d); }
 138     private class InterpreterInstructionEncoder extends InstructionEncoder {
 139         public long getDestAddr(Destination box) { return ((InterpreterDestination)box).getDestAddr(); }
 140         public long getBoxInstAddr(BenkoBox box) { return ((InterpreterBenkoBox)box).getDestAddr(); }
 141         public Destination getDestByAddr(long dest) {
 142             for(Ship ship : Interpreter.this)
 143                 for(BenkoBox bb : ship.getBenkoBoxes())
 144                     for(Destination d : bb.getDestinations())
 145                         if (getDestAddr(d)==dest)
 146                             return d;
 147             return null;
 148         }
 149         public BenkoBox getBoxByInstAddr(long dest) {
 150             for(Ship ship : Interpreter.this)
 151                 for(BenkoBox bb : ship.getBenkoBoxes())
 152                     if (getBoxInstAddr(bb) == dest)
 153                         return bb;
 154             return null;
 155         }
 156     }
 157
 158     // ShipDescription //////////////////////////////////////////////////////////////////////////////
 159
 160     public void expand(ShipDescription sd) {
 161         try {
 162             String filename = (sd.getName().charAt(0)+"").toUpperCase() + sd.getName().substring(1).toLowerCase();
 163             File outf = new File("build/java/edu/berkeley/fleet/interpreter/"+filename+".java");
 164             new File(outf.getParent()).mkdirs();
 165             System.err.println("writing to " + outf);
 166             FileOutputStream out = new FileOutputStream(outf);
 167             PrintWriter pw = new PrintWriter(out);
 168
 169             pw.println("package edu.berkeley.fleet.interpreter;");
 170             pw.println("import edu.berkeley.sbp.util.ANSI;");
 171             pw.println("import edu.berkeley.fleet.api.*;");
 172             pw.println("import edu.berkeley.fleet.*;");
 173             pw.println("import java.util.*;");
 174             pw.println("import java.io.*;");
 175             pw.println("");
 176             pw.println("public class "+filename+" extends InterpreterShip {");
 177             pw.println("");
 178             for(BenkoBoxDescription b : sd) {
 179                 String name = b.getName();
 180                 pw.print("    ");
 181                 if ( b.isInbox()) pw.print("Inbox");
 182                 if (!b.isInbox()) pw.print("Outbox");
 183                 pw.print(" box_");
 184                 pw.print(name);
 185                 pw.print(" = new ");
 186                 if ( b.isInbox()) pw.print("Inbox");
 187                 if (!b.isInbox()) pw.print("Outbox");
 188                 pw.print("(this, \""+name+"\", new String[] { ");
 189                 boolean first = true;
 190                 for(String destination : b) {
 191                     if (!first) pw.print(", ");
 192                     first = false;
 193                     pw.print("\""+destination+"\"");
 194                 }
 195                 pw.println("});");
 196             }
 197             pw.println("");
 198             pw.println("    public "+filename+"(Interpreter fleet, String name) {");
 199             pw.println("       super(fleet, name, \""+filename+"\");");
 200             for(BenkoBoxDescription b : sd)
 201                 pw.println("       addBenkoBox(\""+b.getName()+"\", box_"+b.getName()+");");
 202             pw.println("    }");
 203             pw.println("");
 204             pw.println(sd.getSection("fleeterpreter"));
 205             pw.println("}");
 206             pw.flush();
 207             pw.close();
 208         } catch (Exception e) { throw new RuntimeException(e); }
 209     }
 210
 211 }
 212