--- /dev/null
+package era.mi.logic.tests;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import java.util.function.LongConsumer;
+
+import org.junit.jupiter.api.Test;
+
+import era.mi.logic.Simulation;
+import era.mi.logic.components.Connector;
+import era.mi.logic.components.Demux;
+import era.mi.logic.components.Merger;
+import era.mi.logic.components.Mux;
+import era.mi.logic.components.Splitter;
+import era.mi.logic.components.TriStateBuffer;
+import era.mi.logic.components.gates.AndGate;
+import era.mi.logic.components.gates.NotGate;
+import era.mi.logic.components.gates.OrGate;
+import era.mi.logic.components.gates.XorGate;
+import era.mi.logic.types.Bit;
+import era.mi.logic.types.BitVector;
+import era.mi.logic.wires.Wire;
+import era.mi.logic.wires.Wire.WireEnd;
+
+@SuppressWarnings("unused")
+class ComponentTest
+{
+
+ @Test
+ void circuitExampleTest()
+ {
+ Simulation.TIMELINE.reset();
+ Wire a = new Wire(1, 1), b = new Wire(1, 1), c = new Wire(1, 10), d = new Wire(2, 1), e = new Wire(1, 1), f = new Wire(1, 1),
+ g = new Wire(1, 1), h = new Wire(2, 1), i = new Wire(2, 1), j = new Wire(1, 1), k = new Wire(1, 1);
+ new AndGate(1, f.createEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd());
+ new NotGate(1, f.createReadOnlyEnd(), g.createEnd());
+ new Merger(h.createEnd(), c.createReadOnlyEnd(), g.createReadOnlyEnd());
+ new Mux(1, i.createEnd(), e.createReadOnlyEnd(), h.createReadOnlyEnd(), d.createReadOnlyEnd());
+ new Splitter(i.createReadOnlyEnd(), k.createEnd(), j.createEnd());
+
+ a.createEnd().feedSignals(Bit.ZERO);
+ b.createEnd().feedSignals(Bit.ONE);
+ c.createEnd().feedSignals(Bit.ZERO);
+ d.createEnd().feedSignals(Bit.ONE, Bit.ONE);
+ e.createEnd().feedSignals(Bit.ZERO);
+
+ Simulation.TIMELINE.executeAll();
+
+ assertEquals(Bit.ONE, j.getValue());
+ assertEquals(Bit.ZERO, k.getValue());
+ }
+
+ @Test
+ void splitterTest()
+ {
+ Simulation.TIMELINE.reset();
+ Wire a = new Wire(3, 1), b = new Wire(2, 1), c = new Wire(3, 1), in = new Wire(8, 1);
+ in.createEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
+ new Splitter(in.createReadOnlyEnd(), a.createEnd(), b.createEnd(), c.createEnd());
+
+ Simulation.TIMELINE.executeAll();
+
+ assertBitArrayEquals(a.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO);
+ assertBitArrayEquals(b.getValues(), Bit.ONE, Bit.ZERO);
+ assertBitArrayEquals(c.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE);
+ }
+
+ @Test
+ void mergerTest()
+ {
+ Simulation.TIMELINE.reset();
+ Wire a = new Wire(3, 1), b = new Wire(2, 1), c = new Wire(3, 1), out = new Wire(8, 1);
+ a.createEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO);
+ b.createEnd().feedSignals(Bit.ONE, Bit.ZERO);
+ c.createEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);
+
+ new Merger(out.createEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd(), c.createReadOnlyEnd());
+
+ Simulation.TIMELINE.executeAll();
+
+ assertBitArrayEquals(out.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
+ }
+
+ @Test
+ void triStateBufferTest()
+ {
+ Wire a = new Wire(1, 1), b = new Wire(1, 1), en = new Wire(1, 1), notEn = new Wire(1, 1);
+ new NotGate(1, en.createReadOnlyEnd(), notEn.createEnd());
+ new TriStateBuffer(1, a.createReadOnlyEnd(), b.createEnd(), en.createReadOnlyEnd());
+ new TriStateBuffer(1, b.createReadOnlyEnd(), a.createEnd(), notEn.createReadOnlyEnd());
+
+ WireEnd enI = en.createEnd(), aI = a.createEnd(), bI = b.createEnd();
+ enI.feedSignals(Bit.ONE);
+ aI.feedSignals(Bit.ONE);
+ bI.feedSignals(Bit.Z);
+
+ Simulation.TIMELINE.executeAll();
+
+ assertEquals(Bit.ONE, b.getValue());
+
+ bI.feedSignals(Bit.ZERO);
+
+ Simulation.TIMELINE.executeAll();
+
+ assertEquals(Bit.X, b.getValue());
+ assertEquals(Bit.ONE, a.getValue());
+
+ aI.clearSignals();
+ enI.feedSignals(Bit.ZERO);
+
+ Simulation.TIMELINE.executeAll();
+
+ assertEquals(Bit.ZERO, a.getValue());
+
+ }
+
+ @Test
+ void muxTest()
+ {
+ Simulation.TIMELINE.reset();
+ Wire a = new Wire(4, 3), b = new Wire(4, 6), c = new Wire(4, 4), select = new Wire(2, 5), out = new Wire(4, 1);
+ WireEnd selectIn = select.createEnd();
+
+ selectIn.feedSignals(Bit.ZERO, Bit.ZERO);
+ a.createEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);
+ c.createEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
+
+ new Mux(1, out.createEnd(), select.createReadOnlyEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd(), c.createReadOnlyEnd());
+ Simulation.TIMELINE.executeAll();
+
+ assertBitArrayEquals(out.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);
+ selectIn.feedSignals(Bit.ZERO, Bit.ONE);
+ Simulation.TIMELINE.executeAll();
+
+ assertBitArrayEquals(out.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
+
+ selectIn.feedSignals(Bit.ONE, Bit.ONE);
+ Simulation.TIMELINE.executeAll();
+
+ assertBitArrayEquals(out.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);
+
+ }
+
+ @Test
+ void demuxTest()
+ {
+ Simulation.TIMELINE.reset();
+ Wire a = new Wire(4, 3), b = new Wire(4, 6), c = new Wire(4, 4), select = new Wire(2, 5), in = new Wire(4, 1);
+ WireEnd selectIn = select.createEnd();
+
+ selectIn.feedSignals(Bit.ZERO, Bit.ZERO);
+ in.createEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);
+
+ new Demux(1, in.createReadOnlyEnd(), select.createReadOnlyEnd(), a.createEnd(), b.createEnd(), c.createEnd());
+ Simulation.TIMELINE.executeAll();
+
+ assertBitArrayEquals(a.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);
+ assertBitArrayEquals(b.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);
+ assertBitArrayEquals(c.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);
+ selectIn.feedSignals(Bit.ZERO, Bit.ONE);
+ Simulation.TIMELINE.executeAll();
+
+ assertBitArrayEquals(a.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);
+ assertBitArrayEquals(b.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);
+ assertBitArrayEquals(c.getValues(), Bit.ONE, Bit.ZERO, Bit.ONE, Bit.ZERO);
+
+ selectIn.feedSignals(Bit.ONE, Bit.ONE);
+ Simulation.TIMELINE.executeAll();
+
+ assertBitArrayEquals(a.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);
+ assertBitArrayEquals(b.getValues(), Bit.U, Bit.U, Bit.U, Bit.U);
+ assertBitArrayEquals(c.getValues(), Bit.Z, Bit.Z, Bit.Z, Bit.Z);
+
+ }
+
+ @Test
+ void andTest()
+ {
+ Simulation.TIMELINE.reset();
+ Wire a = new Wire(4, 1), b = new Wire(4, 3), c = new Wire(4, 1);
+ new AndGate(1, c.createEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd());
+ a.createEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);
+ b.createEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
+
+ Simulation.TIMELINE.executeAll();
+
+ assertBitArrayEquals(c.getValues(), Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ZERO);
+ }
+
+ @Test
+ void orTest()
+ {
+ Simulation.TIMELINE.reset();
+ Wire a = new Wire(4, 1), b = new Wire(4, 3), c = new Wire(4, 1);
+ new OrGate(1, c.createEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd());
+ a.createEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ZERO);
+ b.createEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ZERO, Bit.ONE);
+
+ Simulation.TIMELINE.executeAll();
+
+ assertBitArrayEquals(c.getValues(), Bit.ONE, Bit.ONE, Bit.ZERO, Bit.ONE);
+ }
+
+ @Test
+ void xorTest()
+ {
+ Simulation.TIMELINE.reset();
+ Wire a = new Wire(3, 1), b = new Wire(3, 2), c = new Wire(3, 1), d = new Wire(3, 1);
+ new XorGate(1, d.createEnd(), a.createReadOnlyEnd(), b.createReadOnlyEnd(), c.createReadOnlyEnd());
+ a.createEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ONE);
+ b.createEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);
+ c.createEnd().feedSignals(Bit.ONE, Bit.ZERO, Bit.ONE);
+
+ Simulation.TIMELINE.executeAll();
+
+ assertBitArrayEquals(d.getValues(), Bit.ZERO, Bit.ONE, Bit.ONE);
+ }
+
+ @Test
+ void notTest()
+ {
+ Simulation.TIMELINE.reset();
+ Wire a = new Wire(3, 1), b = new Wire(3, 2);
+ new NotGate(1, a.createReadOnlyEnd(), b.createEnd());
+ a.createEnd().feedSignals(Bit.ZERO, Bit.ONE, Bit.ONE);
+
+ Simulation.TIMELINE.executeAll();
+
+ assertBitArrayEquals(b.getValues(), Bit.ONE, Bit.ZERO, Bit.ZERO);
+ }
+
+ @Test
+ void rsLatchCircuitTest()
+ {
+ Simulation.TIMELINE.reset();
+ Wire r = new Wire(1, 1), s = new Wire(1, 1), t1 = new Wire(1, 15), t2 = new Wire(1, 1), q = new Wire(1, 1), nq = new Wire(1, 1);
+
+ new OrGate(1, t2.createEnd(), r.createReadOnlyEnd(), nq.createReadOnlyEnd());
+ new OrGate(1, t1.createEnd(), s.createReadOnlyEnd(), q.createReadOnlyEnd());
+ new NotGate(1, t2.createReadOnlyEnd(), q.createEnd());
+ new NotGate(1, t1.createReadOnlyEnd(), nq.createEnd());
+
+ WireEnd sIn = s.createEnd(), rIn = r.createEnd();
+
+ sIn.feedSignals(Bit.ONE);
+ rIn.feedSignals(Bit.ZERO);
+
+ Simulation.TIMELINE.executeAll();
+
+ assertEquals(Bit.ONE, q.getValue());
+ assertEquals(Bit.ZERO, nq.getValue());
+
+ sIn.feedSignals(Bit.ZERO);
+
+ Simulation.TIMELINE.executeAll();
+ assertEquals(Bit.ONE, q.getValue());
+ assertEquals(Bit.ZERO, nq.getValue());
+
+ rIn.feedSignals(Bit.ONE);
+
+ Simulation.TIMELINE.executeAll();
+
+ assertEquals(Bit.ZERO, q.getValue());
+ assertEquals(Bit.ONE, nq.getValue());
+ }
+
+ @Test
+ void numericValueTest()
+ {
+ Simulation.TIMELINE.reset();
+
+ Wire a = new Wire(4, 1);
+ a.createEnd().feedSignals(Bit.ONE, Bit.ONE, Bit.ONE, Bit.ONE);
+
+ Simulation.TIMELINE.executeAll();
+
+ assertEquals(15, a.getUnsignedValue());
+ assertEquals(-1, a.getSignedValue());
+ }
+
+ @Test
+ void multipleInputs()
+ {
+ Simulation.TIMELINE.reset();
+ Wire w = new Wire(2, 1);
+ WireEnd wI1 = w.createEnd(), wI2 = w.createEnd();
+ wI1.feedSignals(Bit.ONE, Bit.Z);
+ wI2.feedSignals(Bit.Z, Bit.X);
+ Simulation.TIMELINE.executeAll();
+ assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.X);
+
+ wI2.feedSignals(Bit.ZERO, Bit.Z);
+ Simulation.TIMELINE.executeAll();
+ assertBitArrayEquals(w.getValues(), Bit.X, Bit.Z);
+
+ wI2.feedSignals(Bit.Z, Bit.Z);
+ Simulation.TIMELINE.executeAll();
+ assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.Z);
+
+ wI2.feedSignals(Bit.ONE, Bit.Z);
+ w.addObserver((i, oldValues) -> fail("WireArray notified observer, although value did not change."));
+ Simulation.TIMELINE.executeAll();
+ assertBitArrayEquals(w.getValues(), Bit.ONE, Bit.Z);
+ }
+
+ @Test
+ void wireConnections()
+ {
+ // Nur ein Experiment, was über mehrere 'passive' Bausteine hinweg passieren würde
+
+ Simulation.TIMELINE.reset();
+
+ Wire a = new Wire(1, 2);
+ Wire b = new Wire(1, 2);
+ Wire c = new Wire(1, 2);
+ WireEnd aI = a.createEnd();
+ WireEnd bI = b.createEnd();
+ WireEnd cI = c.createEnd();
+
+ TestBitDisplay test = new TestBitDisplay(c.createReadOnlyEnd());
+ TestBitDisplay test2 = new TestBitDisplay(a.createReadOnlyEnd());
+ LongConsumer print = time -> System.out.format("Time %2d\n a: %s\n b: %s\n c: %s\n", time, a, b, c);
+
+ cI.feedSignals(Bit.ONE);
+ test.assertAfterSimulationIs(print, Bit.ONE);
+
+ cI.feedSignals(Bit.X);
+ test.assertAfterSimulationIs(print, Bit.X);
+
+ cI.feedSignals(Bit.X);
+ cI.feedSignals(Bit.Z);
+ test.assertAfterSimulationIs(print, Bit.Z);
+
+ new Connector(b.createEnd(), c.createEnd()).connect();
+ test.assertAfterSimulationIs(print, Bit.Z);
+ System.err.println("ONE");
+ bI.feedSignals(Bit.ONE);
+ test.assertAfterSimulationIs(print, Bit.ONE);
+ System.err.println("ZERO");
+ bI.feedSignals(Bit.ZERO);
+ test.assertAfterSimulationIs(print, Bit.ZERO);
+ System.err.println("Z");
+ bI.feedSignals(Bit.Z);
+ test.assertAfterSimulationIs(print, Bit.Z);
+
+ new Connector(a.createEnd(), b.createEnd()).connect();
+ System.err.println("Z 2");
+ aI.feedSignals(Bit.Z);
+ test.assertAfterSimulationIs(print, Bit.Z);
+ test2.assertAfterSimulationIs(Bit.Z);
+ System.err.println("ONE 2");
+ aI.feedSignals(Bit.ONE);
+ test.assertAfterSimulationIs(print, Bit.ONE);
+ test2.assertAfterSimulationIs(Bit.ONE);
+ System.err.println("ZERO 2");
+ aI.feedSignals(Bit.ZERO);
+ test.assertAfterSimulationIs(print, Bit.ZERO);
+ test2.assertAfterSimulationIs(Bit.ZERO);
+ System.err.println("Z 2 II");
+ aI.feedSignals(Bit.Z);
+ test.assertAfterSimulationIs(print, Bit.Z);
+ test2.assertAfterSimulationIs(Bit.Z);
+
+ System.err.println("No Conflict yet");
+ bI.feedSignals(Bit.ONE);
+ test.assertAfterSimulationIs(print, Bit.ONE);
+ test2.assertAfterSimulationIs(Bit.ONE);
+ aI.feedSignals(Bit.ONE);
+ test.assertAfterSimulationIs(print, Bit.ONE);
+ test2.assertAfterSimulationIs(Bit.ONE);
+ System.err.println("Conflict");
+ aI.feedSignals(Bit.ZERO);
+ test.assertAfterSimulationIs(print, Bit.X);
+ test2.assertAfterSimulationIs(Bit.X);
+ aI.feedSignals(Bit.ONE);
+ test.assertAfterSimulationIs(print, Bit.ONE);
+ test2.assertAfterSimulationIs(Bit.ONE);
+ }
+
+ private static void assertBitArrayEquals(BitVector actual, Bit... expected)
+ {
+ assertArrayEquals(expected, actual.getBits());
+ }
+}
projects / Mograsim.git / blobdiff