1 package net.mograsim.logic.model.am2900.components;
3 import static net.mograsim.logic.core.types.Bit.U;
4 import static net.mograsim.logic.core.types.Bit.X;
5 import static net.mograsim.logic.core.types.Bit.Z;
6 import static net.mograsim.logic.core.types.Bit.ZERO;
8 import java.util.Arrays;
11 import net.mograsim.logic.core.types.Bit;
12 import net.mograsim.logic.core.wires.CoreWire.ReadEnd;
13 import net.mograsim.logic.core.wires.CoreWire.ReadWriteEnd;
14 import net.mograsim.logic.model.model.LogicModelModifiable;
15 import net.mograsim.logic.model.model.components.atomic.SimpleRectangularHardcodedModelComponent;
16 import net.mograsim.logic.model.model.wires.Pin;
17 import net.mograsim.logic.model.model.wires.PinUsage;
18 import net.mograsim.logic.model.serializing.IdentifyParams;
19 import net.mograsim.logic.model.serializing.IndirectModelComponentCreator;
20 import net.mograsim.logic.model.snippets.symbolrenderers.PinNamesSymbolRenderer.PinNamesParams.Position;
22 public class Modelinc extends SimpleRectangularHardcodedModelComponent
24 private final int logicWidth;
26 public Modelinc(LogicModelModifiable model, String name, int logicWidth)
28 super(model, "inc", name, "Incrementer", false);
29 this.logicWidth = logicWidth;
31 addPin(new Pin(model, this, "A", logicWidth, PinUsage.INPUT, 20, 20), Position.TOP);
32 addPin(new Pin(model, this, "CI", 1, PinUsage.INPUT, 40, 10), Position.LEFT);
33 addPin(new Pin(model, this, "Y", logicWidth, PinUsage.OUTPUT, 20, 0), Position.BOTTOM);
39 public Object recalculate(Object lastState, Map<String, ReadEnd> readEnds, Map<String, ReadWriteEnd> readWriteEnds)
41 Bit[] ABits = readEnds.get("A").getValues().getBits();
42 Bit CIVal = readEnds.get("CI").getValue();
43 Bit[] YBits = new Bit[logicWidth];
45 Arrays.fill(YBits, X);
47 Arrays.fill(YBits, U);
49 Arrays.fill(YBits, X);
50 else if (CIVal == ZERO)
55 // TODO extract to helper. This code almost also exists in ModelAm2910RegCntr.
56 for (int i = logicWidth - 1; i >= 0; i--)
59 YBits[i] = a.xor(carry);
63 readWriteEnds.get("Y").feedSignals(YBits);
68 public Integer getParamsForSerializing(IdentifyParams idParams)
75 IndirectModelComponentCreator.setComponentSupplier(Modelinc.class.getCanonicalName(),
76 (m, p, n) -> new Modelinc(m, n, p.getAsInt()));