Moved main memory to machine module

[Mograsim.git] / net.mograsim.machine / test / net / mograsim / machine / standard / memory / WordAddressableMemoryTest.java

diff --git a/net.mograsim.machine/test/net/mograsim/machine/standard/memory/WordAddressableMemoryTest.java b/net.mograsim.machine/test/net/mograsim/machine/standard/memory/WordAddressableMemoryTest.java
new file mode 100644 (file)
index 0000000..74aeb3e
--- /dev/null
+++ b/net.mograsim.machine/test/net/mograsim/machine/standard/memory/WordAddressableMemoryTest.java
@@ -0,0 +1,61 @@
+package net.mograsim.machine.standard.memory;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.math.BigInteger;
+import java.util.Random;
+
+import org.junit.jupiter.api.Test;
+
+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.Wire;
+import net.mograsim.logic.core.wires.Wire.ReadWriteEnd;
+
+class WordAddressableMemoryTest {
+       
+       private Timeline t = new Timeline(10);
+
+       @Test
+       public void wordAddressableMemoryLargeTest()
+       {
+               Wire rW = new Wire(t, 1, 2);
+               Wire data = new Wire(t, 16, 2);
+               Wire address = new Wire(t, 64, 2);
+               ReadWriteEnd rWI = rW.createReadWriteEnd();
+               ReadWriteEnd dataI = data.createReadWriteEnd();
+               ReadWriteEnd addressI = address.createReadWriteEnd();
+
+               WordAddressableMemoryComponent memory = new WordAddressableMemoryComponent(t, 4, 4096L, Long.MAX_VALUE, data.createReadWriteEnd(),
+                               rW.createReadOnlyEnd(), address.createReadOnlyEnd());
+
+               Random r = new Random();
+               for (long j = 1; j > 0; j *= 2)
+               {
+                       for (int i = 0; i < 50; i++)
+                       {
+                               String sAddress = String.format("%64s", BigInteger.valueOf(4096 + i + j).toString(2)).replace(' ', '0');
+                               sAddress = new StringBuilder(sAddress).reverse().toString();
+                               BitVector bAddress = BitVector.parse(sAddress);
+                               addressI.feedSignals(bAddress);
+                               t.executeAll();
+                               String random = BigInteger.valueOf(Math.abs(r.nextInt())).toString(5);
+                               random = random.substring(Integer.max(0, random.length() - 16));
+                               random = String.format("%16s", random).replace(' ', '0');
+                               random = random.replace('2', 'X').replace('3', 'Z').replace('4', 'U');
+                               BitVector vector = BitVector.parse(random);
+                               dataI.feedSignals(vector);
+                               rWI.feedSignals(Bit.ZERO);
+                               t.executeAll();
+                               rWI.feedSignals(Bit.ONE);
+                               t.executeAll();
+                               dataI.clearSignals();
+                               t.executeAll();
+
+                               assertEquals(dataI.getValues(), vector);
+                       }
+               }
+       }
+
+}