X-Git-Url: https://mograsim.net/gitweb/?a=blobdiff_plain;f=tests%2Fnet.mograsim.machine.tests%2Fsrc%2Fnet%2Fmograsim%2Fmachine%2Fstandard%2Fmemory%2FWordAddressableMemoryTest.java;fp=tests%2Fnet.mograsim.machine.tests%2Fsrc%2Fnet%2Fmograsim%2Fmachine%2Fstandard%2Fmemory%2FWordAddressableMemoryTest.java;h=ae8e81537805676ef4e67c86bff5b5d029d57950;hb=58babf45ae7d259a296656451d796dbe601377a4;hp=0000000000000000000000000000000000000000;hpb=be391655605fed71095d1ac7dafb8c4d6f06312d;p=Mograsim.git diff --git a/tests/net.mograsim.machine.tests/src/net/mograsim/machine/standard/memory/WordAddressableMemoryTest.java b/tests/net.mograsim.machine.tests/src/net/mograsim/machine/standard/memory/WordAddressableMemoryTest.java new file mode 100644 index 00000000..ae8e8153 --- /dev/null +++ b/tests/net.mograsim.machine.tests/src/net/mograsim/machine/standard/memory/WordAddressableMemoryTest.java @@ -0,0 +1,70 @@ +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.MainMemoryDefinition; + +class WordAddressableMemoryTest +{ + + 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(); + + @SuppressWarnings("unused") + CoreWordAddressableMemory memory = new CoreWordAddressableMemory(t, 4, + new WordAddressableMemory(MainMemoryDefinition.create(64, 16, 4096L, Long.MAX_VALUE)), data.createReadWriteEnd(), + rW.createReadOnlyEnd(), address.createReadOnlyEnd()); + + 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(); + 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(vector, dataI.getValues(), "seed=" + seed + ", j=" + j + ", i=" + i); + } + } + } + + public static LongStream seedsForRandom() + { + return LongStream.range(0, 20); + } +}