net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/am2900/components/Modelsel4_12.java

   1 package net.mograsim.logic.model.am2900.components;
   2
   3 import static net.mograsim.logic.core.types.Bit.ONE;
   4 import static net.mograsim.logic.core.types.Bit.U;
   5 import static net.mograsim.logic.core.types.Bit.X;
   6 import static net.mograsim.logic.core.types.Bit.Z;
   7 import static net.mograsim.logic.core.types.Bit.ZERO;
   8
   9 import java.util.Map;
  10
  11 import net.mograsim.logic.core.types.Bit;
  12 import net.mograsim.logic.core.types.BitVector;
  13 import net.mograsim.logic.core.wires.CoreWire.ReadEnd;
  14 import net.mograsim.logic.core.wires.CoreWire.ReadWriteEnd;
  15 import net.mograsim.logic.model.model.LogicModelModifiable;
  16 import net.mograsim.logic.model.model.components.atomic.SimpleRectangularHardcodedModelComponent;
  17 import net.mograsim.logic.model.model.wires.Pin;
  18 import net.mograsim.logic.model.model.wires.PinUsage;
  19 import net.mograsim.logic.model.serializing.IndirectModelComponentCreator;
  20 import net.mograsim.logic.model.snippets.symbolrenderers.PinNamesSymbolRenderer.PinNamesParams.Position;
  21
  22 public class Modelsel4_12 extends SimpleRectangularHardcodedModelComponent
  23 {
  24         public Modelsel4_12(LogicModelModifiable model, String name)
  25         {
  26                 super(model, "sel4_12", name, "4-way SEL\n12 bit", false);
  27                 setSize(80, 40);
  28                 addPin(new Pin(model, this, "SA", 1, PinUsage.INPUT, 0, 5), Position.RIGHT);
  29                 addPin(new Pin(model, this, "SB", 1, PinUsage.INPUT, 0, 15), Position.RIGHT);
  30                 addPin(new Pin(model, this, "SC", 1, PinUsage.INPUT, 0, 25), Position.RIGHT);
  31                 addPin(new Pin(model, this, "SD", 1, PinUsage.INPUT, 0, 35), Position.RIGHT);
  32                 addPin(new Pin(model, this, "A", 12, PinUsage.INPUT, 10, 0), Position.BOTTOM);
  33                 addPin(new Pin(model, this, "B", 12, PinUsage.INPUT, 30, 0), Position.BOTTOM);
  34                 addPin(new Pin(model, this, "C", 12, PinUsage.INPUT, 50, 0), Position.BOTTOM);
  35                 addPin(new Pin(model, this, "D", 12, PinUsage.INPUT, 70, 0), Position.BOTTOM);
  36                 addPin(new Pin(model, this, "Y", 12, PinUsage.OUTPUT, 40, 40), Position.TOP);
  37
  38                 init();
  39         }
  40
  41         @Override
  42         public Object recalculate(Object lastState, Map<String, ReadEnd> readEnds, Map<String, ReadWriteEnd> readWriteEnds)
  43         {
  44                 Bit SAVal = readEnds.get("SA").getValue();
  45                 Bit SBVal = readEnds.get("SB").getValue();
  46                 Bit SCVal = readEnds.get("SC").getValue();
  47                 Bit SDVal = readEnds.get("SD").getValue();
  48                 BitVector YVal;
  49                 if (SAVal == X || SBVal == X || SCVal == X || SDVal == X)
  50                         YVal = BitVector.of(X, 12);
  51                 else if (SAVal == U || SBVal == U || SCVal == U || SDVal == U)
  52                         YVal = BitVector.of(U, 12);
  53                 else if (SAVal == Z || SBVal == Z || SCVal == Z || SDVal == Z)
  54                         YVal = BitVector.of(X, 12);
  55                 else
  56                 {
  57                         YVal = null;
  58                         if (SAVal == ONE)
  59                                 YVal = readEnds.get("A").getValues();
  60                         if (SBVal == ONE)
  61                                 if (YVal != null)
  62                                         YVal = BitVector.of(X, 12);
  63                                 else
  64                                         YVal = readEnds.get("B").getValues();
  65                         if (SCVal == ONE)
  66                                 if (YVal != null)
  67                                         YVal = BitVector.of(X, 12);
  68                                 else
  69                                         YVal = readEnds.get("C").getValues();
  70                         if (SDVal == ONE)
  71                                 if (YVal != null)
  72                                         YVal = BitVector.of(X, 12);
  73                                 else
  74                                         YVal = readEnds.get("D").getValues();
  75                         if (YVal == null)
  76                                 YVal = BitVector.of(ZERO, 12);
  77                 }
  78
  79                 readWriteEnds.get("Y").feedSignals(YVal);
  80                 return null;
  81         }
  82
  83         static
  84         {
  85                 IndirectModelComponentCreator.setComponentSupplier(Modelsel4_12.class.getCanonicalName(), (m, p, n) -> new Modelsel4_12(m, n));
  86         }
  87 }