X-Git-Url: https://mograsim.net/gitweb/?a=blobdiff_plain;f=era.mi%2Fsrc%2Fera%2Fmi%2Flogic%2Fwires%2FWire.java;h=1b26a15d0ae5c379c4c60e5b73c00350667b7856;hb=2ccdd5a2ed812bc4eb864ab4fbb1adb1c723a1c9;hp=d85fc206ce65ff33214081ac5231d161472983e2;hpb=b1e7855af2dfc15b4d6c1253dd77db02925162f3;p=Mograsim.git

diff --git a/era.mi/src/era/mi/logic/wires/Wire.java b/era.mi/src/era/mi/logic/wires/Wire.java
index d85fc206..1b26a15d 100644
--- a/era.mi/src/era/mi/logic/wires/Wire.java
+++ b/era.mi/src/era/mi/logic/wires/Wire.java
@@ -60,12 +60,7 @@ public class Wire
 			Bit[] bits = input.getInputValues();
 			for (int i = 0; i < length; i++)
 			{
-				if (Bit.Z.equals(bits[i]) || newValues[i].equals(bits[i]))
-					continue;
-				else if (Bit.Z.equals(newValues[i]))
-					newValues[i] = bits[i];
-				else
-					newValues[i] = Bit.X;
+				newValues[i] = newValues[i].combineWith(bits[i]);
 			}
 		}
 
@@ -205,7 +200,15 @@ public class Wire
 	 */
 	public WireEnd createEnd()
 	{
-		return new WireEnd();
+		return new WireEnd(false);
+	}
+
+	/**
+	 * Create a {@link WireEnd} object, which is tied to this {@link Wire}. This {@link WireEnd} cannot written to.
+	 */
+	public WireEnd createReadOnlyEnd()
+	{
+		return new WireEnd(true);
 	}
 
 	private void registerInput(WireEnd toRegister)
@@ -225,17 +228,18 @@ public class Wire
 		private boolean open;
 		private Bit[] inputValues;
 
-		private WireEnd()
+		private WireEnd(boolean readOnly)
 		{
 			super();
 			open = true;
 			initValues();
-			registerInput(this);
+			if (!readOnly)
+				registerInput(this);
 		}
 
 		private void initValues()
 		{
-			inputValues = Bit.Z.makeArray(length);
+			inputValues = Bit.U.makeArray(length);
 		}
 
 		/**
@@ -247,12 +251,10 @@ public class Wire
 		 */
 		public void feedSignals(Bit... newValues)
 		{
-			if (newValues.length == length)
-			{
-				feedSignals(0, newValues);
-			} else
+			if (newValues.length != length)
 				throw new IllegalArgumentException(
 						String.format("Attempted to input %d bits instead of %d bits.", newValues.length, length));
+			feedSignals(0, newValues);
 		}
 
 		/**
@@ -422,11 +424,11 @@ public class Wire
 		@Override
 		public String toString()
 		{
-			return Arrays.toString(values);
+			return Arrays.toString(inputValues);
 			// return String.format("%s \nFeeding: %s", WireArray.this.toString(), Arrays.toString(inputValues));
 		}
 
-		public void disconnect()
+		public void close()
 		{
 			inputs.remove(this);
 			open = false;