updates that were lying around but never got checked in; includes reorg of gui

[slipway.git] / src / edu / berkeley / slipway / mpar / Placement.java

diff --git a/src/edu/berkeley/slipway/mpar/Placement.java b/src/edu/berkeley/slipway/mpar/Placement.java
new file mode 100644 (file)
index 0000000..e918d7a
--- /dev/null
+++ b/src/edu/berkeley/slipway/mpar/Placement.java
@@ -0,0 +1,72 @@
+package edu.berkeley.slipway.mpar;
+import com.atmel.fpslic.*;
+import java.awt.*;
+import byucc.edif.tools.merge.*;
+import byucc.edif.*;
+import java.io.*;
+import java.util.*;
+import edu.berkeley.slipway.*;
+import edu.berkeley.abits.*;
+import com.atmel.fpslic.*;
+import static com.atmel.fpslic.FpslicConstants.*;
+import static edu.berkeley.slipway.mpar.PhysicalDevice.*;
+import static edu.berkeley.slipway.mpar.NetList.*;
+
+public class Placement {
+
+    public final NetList netlist;
+    public final PhysicalDevice pd;
+
+    public HashMap<PhysicalDevice.PhysicalCell, NetList.Node> cellToNode =
+        new HashMap<PhysicalDevice.PhysicalCell, NetList.Node>();
+    public HashMap<NetList.Node, PhysicalDevice.PhysicalCell> nodeToCell =
+        new HashMap<NetList.Node, PhysicalDevice.PhysicalCell>();
+
+    public Placement(NetList netlist, PhysicalDevice pd) {
+        this.netlist = netlist;
+        this.pd = pd;
+    }
+
+    public void unplace(PhysicalDevice.PhysicalCell pc) {
+        NetList.Node n = cellToNode.get(pc);
+        if (n != null) unplace(n);
+    }
+    public void unplace(NetList.Node n) {
+        PhysicalDevice.PhysicalCell pc = nodeToCell.get(n);
+        cellToNode.remove(pc);
+        nodeToCell.remove(n);
+    }
+    public void place(NetList.Node n, PhysicalDevice.PhysicalCell pc) {
+        if (n==null) return;
+        if (pc==null) return;
+        unplace(n);
+        unplace(pc);
+        cellToNode.put(pc, n);
+        nodeToCell.put(n, pc);
+    }
+
+    public void setPlacement() {
+        for(PhysicalDevice.PhysicalCell pc : cellToNode.keySet()) {
+            NetList.Node node = cellToNode.get(pc);
+            pc.place(node);
+        }
+    }
+
+    public boolean isPlaced(NetList.Node n) { return nodeToCell.get(n) != null; }
+    public boolean isPlaced(PhysicalDevice.PhysicalCell pc) { return cellToNode.get(pc) != null; }
+
+    public PhysicalDevice.PhysicalCell nodeToCell(NetList.Node n) { return nodeToCell.get(n); }
+    public NetList.Node cellToNode(PhysicalDevice.PhysicalCell pc) { return cellToNode.get(pc); }
+
+    public void random(Random rand) {
+        for(NetList.Node n : netlist.nodes) {
+            while(true) {
+                PhysicalDevice.PhysicalCell pc = pd.randomCell(rand);
+                if (isPlaced(pc)) continue;
+                place(n, pc);
+                break;
+            }
+        }
+    }
+
+}
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