+package net.mograsim.logic.model.am2900.components;
+
+import java.util.Map;
+
+import net.mograsim.logic.core.types.Bit;
+import net.mograsim.logic.core.types.BitVector;
+
+import static net.mograsim.logic.core.types.Bit.*;
+import net.mograsim.logic.core.wires.Wire.ReadEnd;
+import net.mograsim.logic.core.wires.Wire.ReadWriteEnd;
+import net.mograsim.logic.model.model.ViewModelModifiable;
+import net.mograsim.logic.model.model.components.atomic.SimpleRectangularHardcodedGUIComponent;
+import net.mograsim.logic.model.model.wires.Pin;
+import net.mograsim.logic.model.snippets.symbolrenderers.PinNamesSymbolRenderer.PinNamesParams.Position;
+
+public class GUImux4_12 extends SimpleRectangularHardcodedGUIComponent
+{
+ public GUImux4_12(ViewModelModifiable model, String name)
+ {
+ super(model, name, "4-way MUX\n12 bit");
+ setSize(80, 40);
+ addPin(new Pin(this, "SA", 1, 0, 5), Usage.INPUT, Position.RIGHT);
+ addPin(new Pin(this, "SB", 1, 0, 15), Usage.INPUT, Position.RIGHT);
+ addPin(new Pin(this, "SC", 1, 0, 25), Usage.INPUT, Position.RIGHT);
+ addPin(new Pin(this, "SD", 1, 0, 35), Usage.INPUT, Position.RIGHT);
+ addPin(new Pin(this, "A", 12, 10, 0), Usage.INPUT, Position.BOTTOM);
+ addPin(new Pin(this, "B", 12, 30, 0), Usage.INPUT, Position.BOTTOM);
+ addPin(new Pin(this, "C", 12, 50, 0), Usage.INPUT, Position.BOTTOM);
+ addPin(new Pin(this, "D", 12, 70, 0), Usage.INPUT, Position.BOTTOM);
+ addPin(new Pin(this, "Y", 12, 40, 40), Usage.OUTPUT, Position.TOP);
+ }
+
+ @Override
+ protected Object recalculate(Object lastState, Map<String, ReadEnd> readEnds, Map<String, ReadWriteEnd> readWriteEnds)
+ {
+ Bit SAVal = readEnds.get("SA").getValue();
+ Bit SBVal = readEnds.get("SB").getValue();
+ Bit SCVal = readEnds.get("SC").getValue();
+ Bit SDVal = readEnds.get("SD").getValue();
+ BitVector YVal;
+ if (SAVal == X || SBVal == X || SCVal == X || SDVal == X)
+ YVal = BitVector.of(X, 12);
+ else if (SAVal == U || SBVal == U || SCVal == U || SDVal == U)
+ YVal = BitVector.of(U, 12);
+ else if (SAVal == Z || SBVal == Z || SCVal == Z || SDVal == Z)
+ YVal = BitVector.of(X, 12);
+ else
+ {
+ YVal = null;
+ if (SAVal == ONE)
+ YVal = readEnds.get("A").getValues();
+ if (SBVal == ONE)
+ if (YVal != null)
+ YVal = BitVector.of(X, 12);
+ else
+ YVal = readEnds.get("B").getValues();
+ if (SCVal == ONE)
+ if (YVal != null)
+ YVal = BitVector.of(X, 12);
+ else
+ YVal = readEnds.get("C").getValues();
+ if (SDVal == ONE)
+ if (YVal != null)
+ YVal = BitVector.of(X, 12);
+ else
+ YVal = readEnds.get("D").getValues();
+ if (YVal == null)
+ YVal = BitVector.of(ZERO, 12);
+ }
+
+ readWriteEnds.get("Y").feedSignals(YVal);
+ return null;
+ }
+}
\ No newline at end of file