Revisited some hardcoded components

[Mograsim.git] / net.mograsim.logic.model.am2900 / src / net / mograsim / logic / model / am2900 / components / am2910 / GUIAm2910RegCntr.java

diff --git a/net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/am2900/components/am2910/GUIAm2910RegCntr.java b/net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/am2900/components/am2910/GUIAm2910RegCntr.java
index ec900c0..00635bf 100644 (file)
--- a/net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/am2900/components/am2910/GUIAm2910RegCntr.java
+++ b/net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/am2900/components/am2910/GUIAm2910RegCntr.java
@@ -8,11 +8,14 @@ import java.util.Arrays;
 import java.util.Map;
 
 import net.mograsim.logic.core.types.Bit;
+import net.mograsim.logic.core.types.BitVector;
 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.model.wires.PinUsage;
+import net.mograsim.logic.model.serializing.IndirectGUIComponentCreator;
 import net.mograsim.logic.model.snippets.symbolrenderers.PinNamesSymbolRenderer.PinNamesParams.Position;
 
 public class GUIAm2910RegCntr extends SimpleRectangularHardcodedGUIComponent
@@ -21,16 +24,16 @@ public class GUIAm2910RegCntr extends SimpleRectangularHardcodedGUIComponent
        {
                super(model, name, "Register/\nCounter");
                setSize(40, 40);
-               addPin(new Pin(this, "D", 12, 20, 0), Usage.INPUT, Position.BOTTOM);
-               addPin(new Pin(this, "_RLD", 1, 0, 5), Usage.INPUT, Position.RIGHT);
-               addPin(new Pin(this, "RWE", 1, 0, 20), Usage.INPUT, Position.RIGHT);
-               addPin(new Pin(this, "RDEC", 1, 0, 30), Usage.INPUT, Position.RIGHT);
-               addPin(new Pin(this, "C", 1, 40, 20), Usage.INPUT, Position.LEFT);
-               addPin(new Pin(this, "Y", 12, 20, 40), Usage.OUTPUT, Position.TOP);
+               addPin(new Pin(this, "D", 12, PinUsage.INPUT, 20, 0), Position.BOTTOM);
+               addPin(new Pin(this, "_RLD", 1, PinUsage.INPUT, 0, 5), Position.RIGHT);
+               addPin(new Pin(this, "WE", 1, PinUsage.INPUT, 0, 20), Position.RIGHT);
+               addPin(new Pin(this, "DEC", 1, PinUsage.INPUT, 0, 30), Position.RIGHT);
+               addPin(new Pin(this, "C", 1, PinUsage.INPUT, 40, 20), Position.LEFT);
+               addPin(new Pin(this, "Y", 12, PinUsage.OUTPUT, 20, 40), Position.TOP);
        }
 
        @Override
-       protected Object recalculate(Object lastState, Map<String, ReadEnd> readEnds, Map<String, ReadWriteEnd> readWriteEnds)
+       public Object recalculate(Object lastState, Map<String, ReadEnd> readEnds, Map<String, ReadWriteEnd> readWriteEnds)
        {
                Bit[] QC = (Bit[]) lastState;
                if (QC == null)
@@ -41,43 +44,68 @@ public class GUIAm2910RegCntr extends SimpleRectangularHardcodedGUIComponent
 
                ReadEnd D = readEnds.get("D");
                ReadEnd _RLD = readEnds.get("_RLD");
-               ReadEnd RWE = readEnds.get("RWE");
-               ReadEnd RDEC = readEnds.get("RDEC");
+               ReadEnd WE = readEnds.get("WE");
+               ReadEnd DEC = readEnds.get("DEC");
                ReadEnd C = readEnds.get("C");
                ReadWriteEnd Y = readWriteEnds.get("Y");
 
                Bit oldCVal = QC[12];
                Bit CVal = C.getValue();
 
-               if (oldCVal == ZERO && CVal == ONE && _RLD.getValue() == ZERO && RWE.getValue() == ONE)
+               // TODO handle U/X/Z
+               if (oldCVal == ZERO && CVal == ONE)
                {
-                       if (RDEC.getValue() == ONE)
+                       if ((DEC.getValue() == ZERO && WE.getValue() == ONE) || _RLD.getValue() == ZERO)
+                               System.arraycopy(D.getValues().getBits(), 0, QC, 0, 12);
+                       else if (WE.getValue() == ONE)
                        {
                                Bit carry = Bit.ZERO;
-                               // TODO maybe invert loop direction
-                               for (int i = 12; i >= 0; i--)
+                               // TODO extract to helper. This code almost also exists in GUIinc12.
+                               for (int i = 11; i >= 0; i--)
                                {
                                        Bit a = QC[i];
-                                       Bit z;
-                                       if (a.isBinary() && carry.isBinary())
-                                       {
-                                               boolean aBool = a == ONE;
-                                               boolean carryBool = carry == ONE;
-                                               z = !aBool ^ carryBool ? ONE : ZERO;
-                                               carry = aBool || carryBool ? ONE : ZERO;
-                                       } else
-                                       {
-                                               carry = carry.join(a);
-                                               z = carry;
-                                       }
-                                       QC[i] = z;
+                                       QC[i] = a.xnor(carry);
+                                       carry = a.or(carry);
                                }
-                       } else
-                               System.arraycopy(D.getValues().getBits(), 0, QC, 0, 12);
+                       }
                }
                QC[12] = CVal;
                Y.feedSignals(Arrays.copyOfRange(QC, 0, 12));
 
                return QC;
        }
+
+       @Override
+       protected Object getHighLevelState(Object state, String stateID)
+       {
+               switch (stateID)
+               {
+               case "q":
+                       return BitVector.of(Arrays.copyOfRange((Bit[]) state, 0, 12));
+               default:
+                       return super.getHighLevelState(state, stateID);
+               }
+       }
+
+       @Override
+       protected Object setHighLevelState(Object lastState, String stateID, Object newHighLevelState)
+       {
+               switch (stateID)
+               {
+               case "q":
+                       BitVector newHighLevelStateCasted = (BitVector) newHighLevelState;
+                       if (newHighLevelStateCasted.length() != 12)
+                               throw new IllegalArgumentException("Expected BitVector of length 12, not " + newHighLevelStateCasted.length());
+                       System.arraycopy(newHighLevelStateCasted.getBits(), 0, lastState, 0, 12);
+                       return lastState;
+               default:
+                       return super.setHighLevelState(lastState, stateID, newHighLevelState);
+               }
+       }
+
+       static
+       {
+               IndirectGUIComponentCreator.setComponentSupplier(GUIAm2910RegCntr.class.getCanonicalName(),
+                               (m, p, n) -> new GUIAm2910RegCntr(m, n));
+       }
 }
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