Implemented GUIAm2910RegCntr

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
new file mode 100644 (file)
index 0000000..ec900c0
--- /dev/null
+++ b/net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/am2900/components/am2910/GUIAm2910RegCntr.java
@@ -0,0 +1,83 @@
+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.ZERO;
+
+import java.util.Arrays;
+import java.util.Map;
+
+import 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 GUIAm2910RegCntr extends SimpleRectangularHardcodedGUIComponent
+{
+       public GUIAm2910RegCntr(ViewModelModifiable model, String name)
+       {
+               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);
+       }
+
+       @Override
+       protected Object recalculate(Object lastState, Map<String, ReadEnd> readEnds, Map<String, ReadWriteEnd> readWriteEnds)
+       {
+               Bit[] QC = (Bit[]) lastState;
+               if (QC == null)
+               {
+                       QC = new Bit[13];
+                       Arrays.fill(QC, U);
+               }
+
+               ReadEnd D = readEnds.get("D");
+               ReadEnd _RLD = readEnds.get("_RLD");
+               ReadEnd RWE = readEnds.get("RWE");
+               ReadEnd RDEC = readEnds.get("RDEC");
+               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)
+               {
+                       if (RDEC.getValue() == ONE)
+                       {
+                               Bit carry = Bit.ZERO;
+                               // TODO maybe invert loop direction
+                               for (int i = 12; 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;
+                               }
+                       } else
+                               System.arraycopy(D.getValues().getBits(), 0, QC, 0, 12);
+               }
+               QC[12] = CVal;
+               Y.feedSignals(Arrays.copyOfRange(QC, 0, 12));
+
+               return QC;
+       }
+}
\ No newline at end of file

diff --git a/net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/examples/GUIComponentTestbench.java b/net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/examples/GUIComponentTestbench.java
index 90ceb28..b57522d 100644 (file)
--- a/net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/examples/GUIComponentTestbench.java
+++ b/net.mograsim.logic.model.am2900/src/net/mograsim/logic/model/examples/GUIComponentTestbench.java
@@ -5,7 +5,7 @@ import java.util.Comparator;
 import java.util.List;
 
 import net.mograsim.logic.model.SimpleLogicUIStandalone;
-import net.mograsim.logic.model.am2900.components.am2910.GUIAm2910InstrPLA;
+import net.mograsim.logic.model.am2900.components.am2910.GUIAm2910RegCntr;
 import net.mograsim.logic.model.model.ViewModelModifiable;
 import net.mograsim.logic.model.model.components.GUIComponent;
 import net.mograsim.logic.model.model.components.atomic.GUIBitDisplay;
@@ -26,7 +26,7 @@ public class GUIComponentTestbench
        public static void createTestbench(ViewModelModifiable model)
        {
 //             GUIComponent comp = IndirectGUIComponentCreator.createComponent(model, "GUIAm2901", "Am2901");
-               GUIComponent comp = new GUIAm2910InstrPLA(model, "Am2910");
+               GUIComponent comp = new GUIAm2910RegCntr(model, "RegCntr");
 
                // guess which pins are outputs and which are inputs
                // TODO this code exists four times... but it seems too "hacky" to put it in a helper class