plugins/net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/am2900/components/Modeldff12.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.ZERO;
   6
   7 import java.util.Arrays;
   8 import java.util.Map;
   9
  10 import net.mograsim.logic.core.types.Bit;
  11 import net.mograsim.logic.core.types.BitVector;
  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.IndirectModelComponentCreator;
  19 import net.mograsim.logic.model.snippets.symbolrenderers.PinNamesSymbolRenderer.PinNamesParams.Position;
  20
  21 public class Modeldff12 extends SimpleRectangularHardcodedModelComponent
  22 {
  23         public Modeldff12(LogicModelModifiable model, String name)
  24         {
  25                 super(model, "dff12", name, "D flip flop\n12 bits", false);
  26                 setSize(40, 20);
  27                 addPin(new Pin(model, this, "D", 12, PinUsage.INPUT, 20, 20), Position.TOP);
  28                 addPin(new Pin(model, this, "C", 1, PinUsage.INPUT, 0, 10), Position.RIGHT);
  29                 addPin(new Pin(model, this, "Y", 12, PinUsage.OUTPUT, 20, 0), Position.BOTTOM);
  30
  31                 init();
  32         }
  33
  34         @Override
  35         public Object recalculate(Object lastState, Map<String, ReadEnd> readEnds, Map<String, ReadWriteEnd> readWriteEnds)
  36         {
  37                 Bit[] QC = (Bit[]) lastState;
  38                 if (QC == null)
  39                 {
  40                         QC = new Bit[13];
  41                         Arrays.fill(QC, U);
  42                 }
  43
  44                 Bit CVal = readEnds.get("C").getValue();
  45
  46                 if (QC[12] == ZERO && CVal == ONE)
  47                         System.arraycopy(readEnds.get("D").getValues().getBits(), 0, QC, 0, 12);
  48
  49                 readWriteEnds.get("Y").feedSignals(Arrays.copyOfRange(QC, 0, 12));
  50                 QC[12] = CVal;
  51
  52                 return QC;
  53         }
  54
  55         @Override
  56         protected Object getHighLevelState(Object state, String stateID)
  57         {
  58                 switch (stateID)
  59                 {
  60                 case "q":
  61                         return BitVector.of(Arrays.copyOfRange((Bit[]) state, 0, 12));
  62                 default:
  63                         return super.getHighLevelState(state, stateID);
  64                 }
  65         }
  66
  67         @Override
  68         protected Object setHighLevelState(Object lastState, String stateID, Object newHighLevelState)
  69         {
  70                 switch (stateID)
  71                 {
  72                 case "q":
  73                         BitVector newHighLevelStateCasted = (BitVector) newHighLevelState;
  74                         if (newHighLevelStateCasted.length() != 12)
  75                                 throw new IllegalArgumentException("Expected BitVector of length 12, not " + newHighLevelStateCasted.length());
  76                         System.arraycopy(newHighLevelStateCasted.getBits(), 0, lastState, 0, 12);
  77                         return lastState;
  78                 default:
  79                         return super.setHighLevelState(lastState, stateID, newHighLevelState);
  80                 }
  81         }
  82
  83         static
  84         {
  85                 IndirectModelComponentCreator.setComponentSupplier(Modeldff12.class.getCanonicalName(), (m, p, n) -> new Modeldff12(m, n));
  86         }
  87 }