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 / Modelinc.java

diff --git a/plugins/net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/am2900/components/Modelinc.java b/plugins/net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/am2900/components/Modelinc.java
new file mode 100644 (file)
index 0000000..981c848
--- /dev/null
+++ b/plugins/net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/am2900/components/Modelinc.java
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+package net.mograsim.logic.model.am2900.components;
+
+import static net.mograsim.logic.core.types.Bit.U;
+import static net.mograsim.logic.core.types.Bit.X;
+import static net.mograsim.logic.core.types.Bit.Z;
+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.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.IdentifyParams;
+import net.mograsim.logic.model.serializing.IndirectModelComponentCreator;
+import net.mograsim.logic.model.snippets.symbolrenderers.PinNamesSymbolRenderer.PinNamesParams.Position;
+
+public class Modelinc extends SimpleRectangularHardcodedModelComponent
+{
+       private final int logicWidth;
+
+       public Modelinc(LogicModelModifiable model, String name, int logicWidth)
+       {
+               super(model, "inc", name, "Incrementer", false);
+               this.logicWidth = logicWidth;
+               setSize(40, 20);
+               addPin(new Pin(model, this, "A", logicWidth, PinUsage.INPUT, 20, 20), Position.TOP);
+               addPin(new Pin(model, this, "CI", 1, PinUsage.INPUT, 40, 10), Position.LEFT);
+               addPin(new Pin(model, this, "Y", logicWidth, PinUsage.OUTPUT, 20, 0), Position.BOTTOM);
+
+               init();
+       }
+
+       @Override
+       public Object recalculate(Object lastState, Map<String, ReadEnd> readEnds, Map<String, ReadWriteEnd> readWriteEnds)
+       {
+               Bit[] ABits = readEnds.get("A").getValues().getBits();
+               Bit CIVal = readEnds.get("CI").getValue();
+               Bit[] YBits = new Bit[logicWidth];
+               if (CIVal == X)
+                       Arrays.fill(YBits, X);
+               else if (CIVal == U)
+                       Arrays.fill(YBits, U);
+               else if (CIVal == Z)
+                       Arrays.fill(YBits, X);
+               else if (CIVal == ZERO)
+                       YBits = ABits;
+               else
+               {
+                       Bit carry = Bit.ONE;
+                       // TODO extract to helper. This code almost also exists in ModelAm2910RegCntr.
+                       for (int i = logicWidth - 1; i >= 0; i--)
+                       {
+                               Bit a = ABits[i];
+                               YBits[i] = a.xor(carry);
+                               carry = a.and(carry);
+                       }
+               }
+               readWriteEnds.get("Y").feedSignals(YBits);
+               return null;
+       }
+
+       @Override
+       public Integer getParamsForSerializing(IdentifyParams idParams)
+       {
+               return logicWidth;
+       }
+
+       static
+       {
+               IndirectModelComponentCreator.setComponentSupplier(Modelinc.class.getCanonicalName(),
+                               (m, p, n) -> new Modelinc(m, n, p.getAsInt()));
+       }
+}
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