checkpoint

[slipway.git] / src / com / atmel / fpslic / Fpslic.java

diff --git a/src/com/atmel/fpslic/Fpslic.java b/src/com/atmel/fpslic/Fpslic.java
index 9cf1ff6..5056ba2 100644 (file)
--- a/src/com/atmel/fpslic/Fpslic.java
+++ b/src/com/atmel/fpslic/Fpslic.java
@@ -176,6 +176,8 @@ public abstract class Fpslic {
             this.col = col;
         }
         
+        public Fpslic fpslic() { return Fpslic.this; }
+
         // Accessors for Neighbors //////////////////////////////////////////////////////////////////////////////
 
         public SectorWire hwire(int plane)  { return new SectorWire(true, plane, col, row); }
@@ -309,14 +311,11 @@ public abstract class Fpslic {
         }
 
         public int t() {
-            System.err.println("found " + (mode4(1, row, col) & 0x34));
-            switch(mode4(1, row, col) & 0x34) {
-                case 0x20: return TMUX_Z;
-                case 0x24: return TMUX_W_AND_Z;
-                case 0x34: return TMUX_FB;
-                case 0x14: return TMUX_W_AND_FB;
+            switch(mode4(1, row, col) & 0x30) {
                 case 0x00: return TMUX_W;
-                    //default: throw new RuntimeException("unknown!");
+                case 0x10: return wi()==NONE ? TMUX_FB : TMUX_W_AND_FB;
+                case 0x20: return wi()==NONE ? TMUX_Z  : TMUX_W_AND_Z;
+                case 0x30: throw new RuntimeException("illegal!");
                 default: return TMUX_W; 
             }
         }
@@ -324,15 +323,14 @@ public abstract class Fpslic {
         public void t(int code) {
             int result = 0;
             switch(code) {
-                case TMUX_W:        result = 0x34; break;
-                case TMUX_Z:        result = 0x20; break; // TOTALLYBOGUS throw new Error("not implemented, but should be possible");
-                case TMUX_W_AND_Z:  result = 0x00; break;
-                case TMUX_FB:       result = 0x34; break; /* I think this is actually W_AND_FB, sadly */
-                case TMUX_W_AND_FB: result = 0x14; break;
-                    //default: throw new RuntimeException("unknown code! " + code);
+                case TMUX_W:        result = 0x00; break;
+                case TMUX_Z:        result = 0x20; break;
+                case TMUX_W_AND_Z:  result = 0x20; break;
+                case TMUX_FB:       result = 0x10; break;
+                case TMUX_W_AND_FB: result = 0x10; break;
                 default: result = 0x00; break;
             }
-            mode4(1, row, col, result, 0x34);
+            mode4(1, row, col, result, 0x30);
         }
         /*
         private void fmux(int source) {
@@ -602,6 +600,30 @@ public abstract class Fpslic {
             }
         }
 
+        public Cell dir(int i) {
+            switch(i) {
+                case NORTH: return north();
+                case SOUTH: return south();
+                case EAST: return east();
+                case WEST: return west();
+                case NW: return nw();
+                case SW: return sw();
+                case SE: return se();
+                case NE: return ne();
+            }
+            return null;
+        }
+        public int dir(Cell c) {
+            if      (c.row==row-1 && c.col==col-1) return SW;
+            else if (c.row==row+1 && c.col==col-1) return NW;
+            else if (c.row==row-1 && c.col==col+1) return SE;
+            else if (c.row==row+1 && c.col==col+1) return NE;
+            else if (c.row==row-1 && c.col==col)   return SOUTH;
+            else if (c.row==row+1 && c.col==col)   return NORTH;
+            else if (c.row==row   && c.col==col-1) return WEST;
+            else if (c.row==row   && c.col==col+1) return EAST;
+            return -1;
+        }
 
         public void generalized_c_element() {
 
@@ -707,7 +729,9 @@ public abstract class Fpslic {
             }
             return out && connect;
         }
+
         public boolean fb_relevant() {
+            /*
             if (!(zi_to_xlut_relevant()) ||
                 !(zi_to_ylut_relevant())) return false;
             switch(ti()) {
@@ -717,6 +741,8 @@ public abstract class Fpslic {
                 case 0x30: return true;
             }
             return false;
+            */
+            return true;
         }