net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/am2900/components/GUIdff4_finewe.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.wires.Wire.ReadEnd;
  13 import net.mograsim.logic.core.wires.Wire.ReadWriteEnd;
  14 import net.mograsim.logic.model.model.ViewModelModifiable;
  15 import net.mograsim.logic.model.model.components.atomic.SimpleRectangularHardcodedGUIComponent;
  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.IndirectGUIComponentCreator;
  19 import net.mograsim.logic.model.snippets.symbolrenderers.PinNamesSymbolRenderer.PinNamesParams.Position;
  20
  21 public class GUIdff4_finewe extends SimpleRectangularHardcodedGUIComponent
  22 {
  23         public GUIdff4_finewe(ViewModelModifiable model, String name)
  24         {
  25                 super(model, name, "D flip flop\n4 bits");
  26                 setSize(35, 90);
  27                 addPin(new Pin(this, "C", 1, PinUsage.INPUT, 0, 5), Position.RIGHT);
  28                 addPin(new Pin(this, "_WE1", 1, PinUsage.INPUT, 0, 15), Position.RIGHT);
  29                 addPin(new Pin(this, "_WE2", 1, PinUsage.INPUT, 0, 25), Position.RIGHT);
  30                 addPin(new Pin(this, "_WE3", 1, PinUsage.INPUT, 0, 35), Position.RIGHT);
  31                 addPin(new Pin(this, "_WE4", 1, PinUsage.INPUT, 0, 45), Position.RIGHT);
  32                 addPin(new Pin(this, "D1", 1, PinUsage.INPUT, 0, 55), Position.RIGHT);
  33                 addPin(new Pin(this, "D2", 1, PinUsage.INPUT, 0, 65), Position.RIGHT);
  34                 addPin(new Pin(this, "D3", 1, PinUsage.INPUT, 0, 75), Position.RIGHT);
  35                 addPin(new Pin(this, "D4", 1, PinUsage.INPUT, 0, 85), Position.RIGHT);
  36                 addPin(new Pin(this, "Q1", 1, PinUsage.OUTPUT, 35, 5), Position.LEFT);
  37                 addPin(new Pin(this, "Q2", 1, PinUsage.OUTPUT, 35, 15), Position.LEFT);
  38                 addPin(new Pin(this, "Q3", 1, PinUsage.OUTPUT, 35, 25), Position.LEFT);
  39                 addPin(new Pin(this, "Q4", 1, PinUsage.OUTPUT, 35, 35), Position.LEFT);
  40         }
  41
  42         @Override
  43         protected Object recalculate(Object lastState, Map<String, ReadEnd> readEnds, Map<String, ReadWriteEnd> readWriteEnds)
  44         {
  45                 Bit[] QC = (Bit[]) lastState;
  46                 if (QC == null)
  47                         QC = new Bit[] { U, U, U, U, U };
  48
  49                 Bit CVal = readEnds.get("C").getValue();
  50
  51                 if (QC[0] == ZERO && CVal == ONE)
  52                         for (int i = 1; i < 5; i++)
  53                         {
  54                                 Bit WEiVal = readEnds.get("_WE" + i).getValue();
  55                                 if (WEiVal == X || WEiVal == Z)
  56                                         QC[i] = X;
  57                                 else if (WEiVal == U)
  58                                         QC[i] = U;
  59                                 else if (WEiVal == ZERO)
  60                                         QC[i] = readEnds.get("D" + i).getValue();
  61                         }
  62
  63                 QC[0] = CVal;
  64
  65                 readWriteEnds.get("Q1").feedSignals(QC[1]);
  66                 readWriteEnds.get("Q2").feedSignals(QC[2]);
  67                 readWriteEnds.get("Q3").feedSignals(QC[3]);
  68                 readWriteEnds.get("Q4").feedSignals(QC[4]);
  69
  70                 return QC;
  71         }
  72
  73         static
  74         {
  75                 IndirectGUIComponentCreator.setComponentSupplier(GUIdff4_finewe.class.getCanonicalName(), (m, p, n) -> new GUIdff4_finewe(m, n));
  76         }
  77 }