The final restructured version for automatic build using maven tycho

[Mograsim.git] / plugins / net.mograsim.logic.model.am2900 / src / net / mograsim / logic / model / am2900 / components / am2910 / ModelAm2910RegCntr.java

diff --git a/plugins/net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/am2900/components/am2910/ModelAm2910RegCntr.java b/plugins/net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/am2900/components/am2910/ModelAm2910RegCntr.java
new file mode 100644 (file)
index 0000000..0c101bb
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+++ b/plugins/net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/am2900/components/am2910/ModelAm2910RegCntr.java
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+package net.mograsim.logic.model.am2900.components.am2910;
+
+import static net.mograsim.logic.core.types.Bit.ONE;
+import static net.mograsim.logic.core.types.Bit.U;
+import static net.mograsim.logic.core.types.Bit.ZERO;
+
+import java.util.Arrays;
+import java.util.Map;
+
+import net.mograsim.logic.core.types.Bit;
+import net.mograsim.logic.core.types.BitVector;
+import net.mograsim.logic.core.wires.CoreWire.ReadEnd;
+import net.mograsim.logic.core.wires.CoreWire.ReadWriteEnd;
+import net.mograsim.logic.model.model.LogicModelModifiable;
+import net.mograsim.logic.model.model.components.atomic.SimpleRectangularHardcodedModelComponent;
+import net.mograsim.logic.model.model.wires.Pin;
+import net.mograsim.logic.model.model.wires.PinUsage;
+import net.mograsim.logic.model.serializing.IndirectModelComponentCreator;
+import net.mograsim.logic.model.snippets.symbolrenderers.PinNamesSymbolRenderer.PinNamesParams.Position;
+
+public class ModelAm2910RegCntr extends SimpleRectangularHardcodedModelComponent
+{
+       public ModelAm2910RegCntr(LogicModelModifiable model, String name)
+       {
+               super(model, "Am2910RegCntr", name, "Register/\nCounter", false);
+               setSize(40, 40);
+               addPin(new Pin(model, this, "D", 12, PinUsage.INPUT, 20, 0), Position.BOTTOM);
+               addPin(new Pin(model, this, "_RLD", 1, PinUsage.INPUT, 0, 5), Position.RIGHT);
+               addPin(new Pin(model, this, "WE", 1, PinUsage.INPUT, 0, 20), Position.RIGHT);
+               addPin(new Pin(model, this, "DEC", 1, PinUsage.INPUT, 0, 30), Position.RIGHT);
+               addPin(new Pin(model, this, "C", 1, PinUsage.INPUT, 40, 20), Position.LEFT);
+               addPin(new Pin(model, this, "Y", 12, PinUsage.OUTPUT, 20, 40), Position.TOP);
+
+               init();
+       }
+
+       @Override
+       public Object recalculate(Object lastState, Map<String, ReadEnd> readEnds, Map<String, ReadWriteEnd> readWriteEnds)
+       {
+               Bit[] QC = (Bit[]) lastState;
+               if (QC == null)
+               {
+                       QC = new Bit[13];
+                       Arrays.fill(QC, U);
+               }
+
+               ReadEnd D = readEnds.get("D");
+               ReadEnd _RLD = readEnds.get("_RLD");
+               ReadEnd WE = readEnds.get("WE");
+               ReadEnd DEC = readEnds.get("DEC");
+               ReadEnd C = readEnds.get("C");
+               ReadWriteEnd Y = readWriteEnds.get("Y");
+
+               Bit oldCVal = QC[12];
+               Bit CVal = C.getValue();
+
+               // TODO handle U/X/Z
+               if (oldCVal == ZERO && CVal == ONE)
+               {
+                       if ((DEC.getValue() == ZERO && WE.getValue() == ONE) || _RLD.getValue() == ZERO)
+                               System.arraycopy(D.getValues().getBits(), 0, QC, 0, 12);
+                       else if (WE.getValue() == ONE)
+                       {
+                               Bit carry = Bit.ZERO;
+                               // TODO extract to helper. This code almost also exists in Modelinc.
+                               for (int i = 11; i >= 0; i--)
+                               {
+                                       Bit a = QC[i];
+                                       QC[i] = a.xnor(carry);
+                                       carry = a.or(carry);
+                               }
+                       }
+               }
+               QC[12] = CVal;
+               Y.feedSignals(Arrays.copyOfRange(QC, 0, 12));
+
+               return QC;
+       }
+
+       @Override
+       protected Object getHighLevelState(Object state, String stateID)
+       {
+               switch (stateID)
+               {
+               case "q":
+                       return BitVector.of(Arrays.copyOfRange((Bit[]) state, 0, 12));
+               default:
+                       return super.getHighLevelState(state, stateID);
+               }
+       }
+
+       @Override
+       protected Object setHighLevelState(Object lastState, String stateID, Object newHighLevelState)
+       {
+               switch (stateID)
+               {
+               case "q":
+                       BitVector newHighLevelStateCasted = (BitVector) newHighLevelState;
+                       if (newHighLevelStateCasted.length() != 12)
+                               throw new IllegalArgumentException("Expected BitVector of length 12, not " + newHighLevelStateCasted.length());
+                       System.arraycopy(newHighLevelStateCasted.getBits(), 0, lastState, 0, 12);
+                       return lastState;
+               default:
+                       return super.setHighLevelState(lastState, stateID, newHighLevelState);
+               }
+       }
+
+       static
+       {
+               IndirectModelComponentCreator.setComponentSupplier(ModelAm2910RegCntr.class.getCanonicalName(),
+                               (m, p, n) -> new ModelAm2910RegCntr(m, n));
+       }
+}
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