The final restructured version for automatic build using maven tycho

[Mograsim.git] / plugins / net.mograsim.logic.model.am2900 / src / net / mograsim / logic / model / am2900 / components / am2910 / ModelAm2910SP.java

diff --git a/plugins/net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/am2900/components/am2910/ModelAm2910SP.java b/plugins/net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/am2900/components/am2910/ModelAm2910SP.java
new file mode 100644 (file)
index 0000000..a99fe0d
--- /dev/null
+++ b/plugins/net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/am2900/components/am2910/ModelAm2910SP.java
@@ -0,0 +1,134 @@
+package net.mograsim.logic.model.am2900.components.am2910;
+
+import static net.mograsim.logic.core.types.Bit.ONE;
+import static net.mograsim.logic.core.types.Bit.U;
+import static net.mograsim.logic.core.types.Bit.X;
+import static net.mograsim.logic.core.types.Bit.ZERO;
+
+import java.util.Map;
+
+import net.mograsim.logic.core.types.Bit;
+import net.mograsim.logic.core.types.BitVector;
+import net.mograsim.logic.core.wires.CoreWire.ReadEnd;
+import net.mograsim.logic.core.wires.CoreWire.ReadWriteEnd;
+import net.mograsim.logic.model.model.LogicModelModifiable;
+import net.mograsim.logic.model.model.components.atomic.SimpleRectangularHardcodedModelComponent;
+import net.mograsim.logic.model.model.wires.Pin;
+import net.mograsim.logic.model.model.wires.PinUsage;
+import net.mograsim.logic.model.serializing.IndirectModelComponentCreator;
+import net.mograsim.logic.model.snippets.symbolrenderers.PinNamesSymbolRenderer.PinNamesParams.Position;
+
+public class ModelAm2910SP extends SimpleRectangularHardcodedModelComponent
+{
+       public ModelAm2910SP(LogicModelModifiable model, String name)
+       {
+               super(model, "Am2910SP", name, "Stack\npointer", false);
+               setSize(40, 30);
+               addPin(new Pin(model, this, "STKI0", 1, PinUsage.INPUT, 0, 5), Position.RIGHT);
+               addPin(new Pin(model, this, "STKI1", 1, PinUsage.INPUT, 0, 15), Position.RIGHT);
+               addPin(new Pin(model, this, "C", 1, PinUsage.INPUT, 0, 25), Position.RIGHT);
+               addPin(new Pin(model, this, "A", 3, PinUsage.OUTPUT, 10, 30), Position.TOP);
+               addPin(new Pin(model, this, "B", 3, PinUsage.OUTPUT, 30, 30), Position.TOP);
+               addPin(new Pin(model, this, "_FULL", 1, PinUsage.OUTPUT, 40, 15), Position.LEFT);
+
+               init();
+       }
+
+       @Override
+       public Object recalculate(Object lastState, Map<String, ReadEnd> readEnds, Map<String, ReadWriteEnd> readWriteEnds)
+       {
+               BitAndInt SPC = (BitAndInt) lastState;
+               if (SPC == null)
+               {
+                       SPC = new BitAndInt();
+                       SPC.bit = U;
+                       SPC.i = -2;
+               }
+               int SP = SPC.i;
+
+               Bit STKI0Val = readEnds.get("STKI0").getValue();
+               Bit STKI1Val = readEnds.get("STKI1").getValue();
+               Bit CVal = readEnds.get("C").getValue();
+               if (SPC.bit == ZERO && CVal == ONE)
+                       if (STKI0Val == U && STKI1Val == U)
+                               SP = -2;
+                       else if (!STKI0Val.isBinary() || !STKI1Val.isBinary())
+                               SP = -1;
+                       else if (STKI0Val == ONE && STKI1Val == ZERO)
+                       {
+                               // PUSH
+                               if (SP >= 0)
+                                       SP = SP == 5 ? 5 : SP + 1;
+                       } else if (STKI0Val == ZERO && STKI1Val == ONE)
+                               // CLEAR
+                               SP = 0;
+                       else if (STKI0Val == ONE && STKI1Val == ONE)
+                               // POP
+                               SP = SP <= 0 ? SP : SP - 1;
+               readWriteEnds.get("A").feedSignals(getAsBitVector(SP == 0 ? 7 : SP < 0 ? SP : SP - 1));
+               readWriteEnds.get("B").feedSignals(getAsBitVector(SP == 5 ? 4 : SP));
+               readWriteEnds.get("_FULL").feedSignals(SP == -2 ? U : SP == -1 ? X : SP == 5 ? ZERO : ONE);
+
+               SPC.i = SP;
+               SPC.bit = CVal;
+               return SPC;
+       }
+
+       @Override
+       protected Object getHighLevelState(Object state, String stateID)
+       {
+               switch (stateID)
+               {
+               case "q":
+                       return getAsBitVector(((BitAndInt) state).i);
+               default:
+                       return super.getHighLevelState(state, stateID);
+               }
+       }
+
+       @Override
+       protected Object setHighLevelState(Object lastState, String stateID, Object newHighLevelState)
+       {
+               switch (stateID)
+               {
+               case "q":
+                       int i;
+                       BitVector newHighLevelStateCasted = (BitVector) newHighLevelState;
+                       if (newHighLevelStateCasted.length() != 3)
+                               throw new IllegalArgumentException("Expected BitVector of length 3, not " + newHighLevelStateCasted.length());
+                       if (newHighLevelStateCasted.isBinary())
+                               i = newHighLevelStateCasted.getUnsignedValue().intValue();
+                       else
+                               i = -1;// this makes setting to U impossible
+                       if (i > 5)
+                               throw new IllegalArgumentException("Given value not in range (0-5 incl.): " + i);
+                       ((BitAndInt) lastState).i = i;
+                       return lastState;
+               default:
+                       return super.setHighLevelState(lastState, stateID, newHighLevelState);
+               }
+       }
+
+       private static class BitAndInt
+       {
+               Bit bit;
+               int i;
+       }
+
+       /**
+        * -1 means X, -2 means U
+        */
+       private static BitVector getAsBitVector(int i)
+       {
+               if (i == -1)
+                       return BitVector.of(X, 3);
+               if (i == -2)
+                       return BitVector.of(U, 3);
+               return BitVector.of((i & 0b100) > 0 ? ONE : ZERO, (i & 0b10) > 0 ? ONE : ZERO, (i & 0b1) > 0 ? ONE : ZERO);
+       }
+
+       static
+       {
+               IndirectModelComponentCreator.setComponentSupplier(ModelAm2910SP.class.getCanonicalName(), (m, p, n) -> new ModelAm2910SP(m, n));
+       }
+}
\ No newline at end of file