refactor codebag-memory-block creation code

[fleet.git] / src / edu / berkeley / fleet / two / FleetTwoFleet.java

diff --git a/src/edu/berkeley/fleet/two/FleetTwoFleet.java b/src/edu/berkeley/fleet/two/FleetTwoFleet.java
index c9defc7..cce5067 100644 (file)
--- a/src/edu/berkeley/fleet/two/FleetTwoFleet.java
+++ b/src/edu/berkeley/fleet/two/FleetTwoFleet.java
@@ -7,6 +7,7 @@ import static edu.berkeley.fleet.api.Instruction.Set.*;
 import static edu.berkeley.fleet.api.Instruction.*;
 import static edu.berkeley.fleet.api.Predicate.*;
 
+/** common subclass for the "FleetTwo" generation of processors, all 37-bit wide, with AM33 encoding */
 public abstract class FleetTwoFleet extends Fleet {
 
     public static final Mask PACKET_TOKEN               = new Mask("v.................................................");
@@ -72,19 +73,26 @@ public abstract class FleetTwoFleet extends Fleet {
 
     public static final Mask SET_TAPL_FROM_IMMEDIATE    = new Mask("................1000001.vvvvvvvvvvvvv");
 
+    // Misc //////////////////////////////////////////////////////////////////////////////
 
-        public static final long DataLatch_WIDTH = SET_IMMEDIATE.valmaskmax-SET_IMMEDIATE.valmaskmin+1;  // FIXME: this is an abstraction breakage
-        private static final long mask  = ~(-1L << DataLatch_WIDTH);
-        public static boolean isSmallEnoughToFit(long immediate) {
-            if ((immediate & ~mask) == 0)   return true;
-            if ((immediate |  mask) == -1L) return true;
-            return false;
-        }
+    public static final long DataLatch_WIDTH = SET_IMMEDIATE.valmaskmax-SET_IMMEDIATE.valmaskmin+1;  // FIXME: this is an abstraction breakage
+    private static final long mask  = ~(-1L << DataLatch_WIDTH);
+    public static boolean isSmallEnoughToFit(long immediate) {
+        if ((immediate & ~mask) == 0)   return true;
+        if ((immediate |  mask) == -1L) return true;
+        return false;
+    }
+
+    public int getWordWidth() { return 37; }
+
+    //////////////////////////////////////////////////////////////////////////////
 
     /** get the bits describing this box's location on the DESTINATION HORN */
+    // FIXME this should use a BitVector not a long!
     protected abstract long getDestAddr(Path box);
 
     /** decode a path, given the starting point and the bits that comprise it */
+    // FIXME this should use a BitVector not a long!
     protected abstract Path getPathByAddr(Dock source, long dest);
 
     /** FIXME: this is a hack for now */
@@ -298,4 +306,5 @@ public abstract class FleetTwoFleet extends Fleet {
             }
         return ret;
     }
+
 }