src/edu/berkeley/fleet/marina/InstructionStopper.java

   1 package edu.berkeley.fleet.marina;
   2 import java.util.*;
   3 import com.sun.electric.tool.simulation.test.*;
   4 import edu.berkeley.fleet.api.Dock;
   5 import edu.berkeley.fleet.api.Instruction;
   6 import static edu.berkeley.fleet.marina.Marina.INSTRUCTION_LENGTH;
   7
   8 /**
   9  * InstructionStopper is a scaffold that lets us create a 36 bit propperStopper
  10  * by using a 52 bit propperStopper and throwing away the unused bits.
  11  */
  12 public class InstructionStopper extends ProperStopper {
  13
  14     private static final int INSTRUCTION_SEND_NDX = 1;
  15     private static final int INSTRUCTION_RECIRCULATE_NDX = 0;
  16     private final String INSTR_RING_CONTROL_PATH;
  17
  18     public InstructionStopper(String propInst,
  19                               ChainControl controlChain,
  20                               ChainControl dataChain,
  21                               ChainControl reportChain,
  22                               ChipModel model,
  23                               boolean clockHack,
  24                               Indenter indenter, String counterPath) {
  25         super(propInst, controlChain, dataChain, reportChain, model, clockHack, indenter, counterPath);
  26         INSTR_RING_CONTROL_PATH = propInst+".tapStage@2";
  27     }
  28
  29     /** put one Instruction into InstructionStopper */
  30     public void fill(Instruction inst) {
  31         MarinaPacket mp = new MarinaPacket(inst);
  32         MarinaTest.indenter.prln("  inserting instruction: " +
  33                                  inst.toString().substring(inst.toString().indexOf(':')+1)
  34                                  +"\n      "+mp);
  35         super.fill(mp);
  36     }
  37
  38     /* put a torpedo into the InstructionStopper */
  39     public void fillTorpedo() {
  40         MarinaTest.indenter.prln("  inserting torpedo");
  41         super.fill(new MarinaPacket(MarinaPacket.null_word, true, MarinaPacket.null_path));
  42     }
  43
  44     public void fill(Instruction[] instructions) { fill(instructions, false); }
  45     public void fill(Instruction[] instructions, boolean repeat) { fill(instructions, repeat, false); }
  46     public void fill(Instruction[] instructions, boolean repeat, boolean leaveStopped) {
  47         enableInstructionSend(false);
  48         enableInstructionRecirculate(true);
  49         for(Instruction i : instructions)
  50             if (i!=null) {
  51                 fill(i);
  52             } else {
  53                 fillTorpedo();
  54             }
  55         enableInstructionRecirculate(repeat);
  56         enableInstructionSend(true);
  57         if (!leaveStopped) run();
  58     }
  59     public void enableInstructionSend(boolean b) {
  60         BitVector bv = controlChain.getInBits(Marina.CONTROL_CHAIN+"."+INSTR_RING_CONTROL_PATH);
  61         bv.set(INSTRUCTION_SEND_NDX, b);
  62         controlChain.setInBits(Marina.CONTROL_CHAIN+"."+INSTR_RING_CONTROL_PATH, bv);
  63         controlChain.shift(Marina.CONTROL_CHAIN, false, true);
  64     }
  65     public void enableInstructionRecirculate(boolean b) {
  66         BitVector bv = controlChain.getInBits(Marina.CONTROL_CHAIN+"."+INSTR_RING_CONTROL_PATH);
  67         bv.set(INSTRUCTION_RECIRCULATE_NDX, b);
  68         controlChain.setInBits(Marina.CONTROL_CHAIN+"."+INSTR_RING_CONTROL_PATH, bv);
  69         controlChain.shift(Marina.CONTROL_CHAIN, false, true);
  70     }
  71 }