From: Adam Megacz <adam.megacz@sun.com>
Date: Mon, 10 Nov 2008 20:56:05 +0000 (+0000)
Subject: add tests 3002-3004
X-Git-Url: http://git.megacz.com/?a=commitdiff_plain;h=2768f3142219260ffe9d850cc984b2ad6c50337b;p=fleet.git

add tests 3002-3004
---

diff --git a/testCode/com/sun/vlsi/chips/marina/test/MarinaTest.java b/testCode/com/sun/vlsi/chips/marina/test/MarinaTest.java
index 3aa18ab..2e06f64 100644
--- a/testCode/com/sun/vlsi/chips/marina/test/MarinaTest.java
+++ b/testCode/com/sun/vlsi/chips/marina/test/MarinaTest.java
@@ -49,6 +49,12 @@ public class MarinaTest {
     
 	// COLUMN_LATENCY is a delay that is larger than the latency through an Infinity column
 	private static final int COLUMN_LATENCY = 10; // nanoseconds
+
+        // maximum number of instructions that fit in the instruction
+        // ring; note that in order for the ring to circulate, you
+        // must insert no more than INSTRUCTION_FIFO_CAPACITY-1
+        // instructions
+	private static final int INSTRUCTION_FIFO_CAPACITY = 13;
 	
 	// Nominal cycle time assuming 4 GHz throughput
 	private static final double CYCLE_TIME_NS = 0.250;
@@ -368,6 +374,7 @@ public class MarinaTest {
     	adjustIndent(-2);
     	prln("End sendInstructions");
     }
+
     private void sendToken(IsolatedInDock inDock) {
     	prln("Begin sendToken");
     	adjustIndent(2);
@@ -379,7 +386,7 @@ public class MarinaTest {
     	
         inDock.instrIn.fill(
             new Instruction.Move(DOCK,
-            		             false, /* requeueing */
+                                 false,                 /* requeueing  */
                                  Predicate.IgnoreOLC,   /* predicate   */
                                  false,                 /* torpedoable */
                                  null,                  /* path        */
@@ -401,6 +408,51 @@ public class MarinaTest {
     	adjustIndent(-2);
     	prln("End sendToken");
     }
+
+    private void testFlagZ(IsolatedInDock inDock) {
+    	prln("Begin testFlagZ");
+    	adjustIndent(2);
+    	
+        List<BitVector> toks;
+
+        Predicate only_if_olc_zero    = Predicate.OLCZero;
+        Predicate only_if_olc_nonzero = Predicate.Default;
+
+        for(int olc : new int[] { 1, 0 }) {
+            for(boolean predicate_olc_nonzero : new boolean[] { true, false }) {
+                prln("Attempting send token with "+
+                     "olc=="+olc+" and "+
+                     "predicate olc"+(predicate_olc_nonzero?"!=0":"==0"));
+                adjustIndent(2);
+                inDock.instrIn.fill(new Instruction.Set(DOCK,false,Predicate.IgnoreOLC,SetDest.OuterLoopCounter, 1));
+                if (olc==0)
+                    inDock.instrIn.fill(new Instruction.Set(DOCK,false,Predicate.IgnoreOLC, SetDest.OuterLoopCounter, SetSource.Decrement));
+                inDock.instrIn.fill(new Instruction.Set(DOCK,false,Predicate.IgnoreOLC,SetDest.InnerLoopCounter, 1));
+                inDock.instrIn.fill(new Instruction.Move(DOCK,
+                                                         false,                 /* requeueing  */
+                                                         predicate_olc_nonzero  /* predicate   */
+                                                         ? only_if_olc_nonzero
+                                                         : only_if_olc_zero
+                                                         ,
+                                                         false,                 /* torpedoable */
+                                                         null,                  /* path        */
+                                                         false,                 /* tokenIn     */
+                                                         false,                 /* dataIn      */
+                                                         false,                 /* latchData   */
+                                                         false,                 /* latchPath   */
+                                                         false,                 /* dataOut     */
+                                                         true                   /* tokenOut    */
+                                                         ));
+                toks = inDock.tokOut.drainMany();
+                int expected = (predicate_olc_nonzero == (olc!=0)) ? 1 : 0;
+                fatal(toks.size()!=expected, "Expected one token to emerge but got: "+toks.size()+" token(s)");
+                adjustIndent(-2);
+            }
+        }
+    	adjustIndent(-2);
+    	prln("End testFlagZ");
+    }
+
     private void getCtrsFlags(IsolatedInDock inDock) {
         int olc = inDock.getOLC();
         prln("OLC="+olc);
@@ -506,6 +558,56 @@ public class MarinaTest {
     	adjustIndent(-2);
     	prln("End countOlc");
     }
+
+    private void saturateInstructionFifo(IsolatedInDock inDock, Instruction instruction) {
+        prln("Inserting "+(INSTRUCTION_FIFO_CAPACITY+1)+" copies of \"" + instruction + "\"");
+    	adjustIndent(2);
+        for(int i=0; i<(INSTRUCTION_FIFO_CAPACITY+1); i++) {
+            prln("Inserting instruction " + (i+1) +"/"+ (INSTRUCTION_FIFO_CAPACITY+1));
+            inDock.instrIn.fill(instruction);
+        }
+    	adjustIndent(-2);
+        prln("Successfully inserted " + (INSTRUCTION_FIFO_CAPACITY+1) + " instructions");
+    }
+
+    private static final Instruction REQUEUEING_NOP =
+        new Instruction.Move(DOCK,
+                             true,                  /* requeueing  */
+                             Predicate.IgnoreOLC,   /* predicate   */
+                             false,                 /* torpedoable */
+                             null,                  /* path        */
+                             false,                 /* tokenIn     */
+                             false,                 /* dataIn      */
+                             false,                 /* latchData   */
+                             false,                 /* latchPath   */
+                             false,                 /* dataOut     */
+                             false                  /* tokenOut    */
+                             );
+
+    private void testRequeueStage0(IsolatedInDock inDock) {
+        prln("Begin testRequeueStage0");
+    	adjustIndent(2);
+
+        prln("Executing Set OLC=1");
+        inDock.instrIn.fill(new Instruction.Set(DOCK,false,Predicate.IgnoreOLC,SetDest.OuterLoopCounter,1));
+        prln("Executing Set OLC--");
+        inDock.instrIn.fill(new Instruction.Set(DOCK,false,Predicate.IgnoreOLC,SetDest.OuterLoopCounter,SetSource.Decrement));
+        saturateInstructionFifo(inDock, REQUEUEING_NOP);
+    	adjustIndent(-2);
+        prln("End testRequeueStage0");
+    }
+
+    private void testRequeueStage0to1(IsolatedInDock inDock) {
+        prln("Begin testRequeueStage0to1");
+    	adjustIndent(2);
+
+        prln("Executing Set OLC=1");
+        inDock.instrIn.fill(new Instruction.Set(DOCK,false,Predicate.IgnoreOLC,SetDest.OuterLoopCounter,1));
+        saturateInstructionFifo(inDock, REQUEUEING_NOP);  /** FIXME: expect it to jam up */
+    	adjustIndent(-2);
+        prln("End testRequeueStage0to1");
+    }
+
     private void testFlagAB(IsolatedInDock inDock) {
     	prln("Begin testFlagAB");
     	adjustIndent(2);
@@ -637,6 +739,9 @@ public class MarinaTest {
                 // Adam's tests begin with 3000
 		case 3000: sendToken((IsolatedInDock)design); break;
 		case 3001: testFlagAB((IsolatedInDock)design); break;
+		case 3002: testRequeueStage0((IsolatedInDock)design); break;
+		case 3003: testRequeueStage0to1((IsolatedInDock)design); break;
+		case 3004: testFlagZ((IsolatedInDock)design); break;
 
 		default:
 			fatal(true, "Test number: "+testNum+" doesn't exist.");