X-Git-Url: https://mograsim.net/gitweb/?p=Mograsim.git;a=blobdiff_plain;f=tests%2Fnet.mograsim.machine.tests%2Fsrc%2Fnet%2Fmograsim%2Fmachine%2Fstandard%2Fmemory%2FMainMemoryTest.java;fp=tests%2Fnet.mograsim.machine.tests%2Fsrc%2Fnet%2Fmograsim%2Fmachine%2Fstandard%2Fmemory%2FMainMemoryTest.java;h=220aa9dd1dad6c98e35e446394225e5c7f6b1e1e;hp=0000000000000000000000000000000000000000;hb=b5d55c59d7069171bd928e4a945d9185ee4bc2b0;hpb=f098cd47d06be0cc654532a5fad0e5e89f0ef93c

diff --git a/tests/net.mograsim.machine.tests/src/net/mograsim/machine/standard/memory/MainMemoryTest.java b/tests/net.mograsim.machine.tests/src/net/mograsim/machine/standard/memory/MainMemoryTest.java
new file mode 100644
index 00000000..220aa9dd
--- /dev/null
+++ b/tests/net.mograsim.machine.tests/src/net/mograsim/machine/standard/memory/MainMemoryTest.java
@@ -0,0 +1,69 @@
+package net.mograsim.machine.standard.memory;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.math.BigInteger;
+import java.util.Random;
+import java.util.stream.LongStream;
+
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.MethodSource;
+
+import net.mograsim.logic.core.timeline.Timeline;
+import net.mograsim.logic.core.types.Bit;
+import net.mograsim.logic.core.types.BitVector;
+import net.mograsim.logic.core.wires.CoreWire;
+import net.mograsim.logic.core.wires.CoreWire.ReadWriteEnd;
+import net.mograsim.machine.MainMemory;
+import net.mograsim.machine.MainMemoryDefinition;
+import net.mograsim.machine.StandardMainMemory;
+
+class MainMemoryTest
+{
+
+	private Timeline t = new Timeline(10);
+
+	@ParameterizedTest(name = "seed = {0}")
+	@MethodSource("seedsForRandom")
+	public void wordAddressableMemoryLargeTest(long seed)
+	{
+		CoreWire rW = new CoreWire(t, 1, 2);
+		CoreWire data = new CoreWire(t, 16, 2);
+		CoreWire address = new CoreWire(t, 64, 2);
+		ReadWriteEnd rWI = rW.createReadWriteEnd();
+		ReadWriteEnd dataI = data.createReadWriteEnd();
+		ReadWriteEnd addressI = address.createReadWriteEnd();
+
+		MainMemoryDefinition definition = MainMemoryDefinition.create(64, 16, 4096L, Long.MAX_VALUE);
+		CoreBitVectorMemory<MainMemory> memory = new CoreBitVectorMemory<>(t, 4, definition, data.createReadWriteEnd(),
+				rW.createReadOnlyEnd(), address.createReadOnlyEnd(), false);
+		memory.setMemory(new StandardMainMemory(definition));
+
+		Random r = new Random(seed);
+		for (long j = 1; j > 0; j *= 2)
+		{
+			for (int i = 0; i < 100; i++)
+			{
+				BitVector bAddress = BitVector.from(4096 + i + j, 64);
+				addressI.feedSignals(bAddress);
+				t.executeAll();
+				BigInteger random = BigInteger.valueOf(Math.abs(r.nextInt()));
+				BitVector vector = BitVector.from(random, 16);
+				dataI.feedSignals(vector);
+				rWI.feedSignals(Bit.ZERO);
+				t.executeAll();
+				rWI.feedSignals(Bit.ONE);
+				t.executeAll();
+				dataI.clearSignals();
+				t.executeAll();
+
+				assertEquals(vector, dataI.getValues(), "seed=" + seed + ", j=" + j + ", i=" + i);
+			}
+		}
+	}
+
+	public static LongStream seedsForRandom()
+	{
+		return LongStream.range(0, 20);
+	}
+}