X-Git-Url: https://mograsim.net/gitweb/?a=blobdiff_plain;f=era.mi%2Fsrc%2Fera%2Fmi%2Flogic%2FUtil.java;h=6aec8844c7b115eff2f5958566169363038ee43d;hb=4aab0c0fc739b8710af599ae0701568ecd5ab44f;hp=6bca6d0ef9c542d2789e66fd36392c83a135cbda;hpb=8bcbbc8e3c1cf04dd051b354b1b0ddf07c3f9ae1;p=Mograsim.git

diff --git a/era.mi/src/era/mi/logic/Util.java b/era.mi/src/era/mi/logic/Util.java
index 6bca6d0e..6aec8844 100644
--- a/era.mi/src/era/mi/logic/Util.java
+++ b/era.mi/src/era/mi/logic/Util.java
@@ -84,6 +84,29 @@ public final class Util
 	}
 	return out;
     }
+    
+    public static Bit[] arrayOfZ(int length)
+    {
+    Bit[] out = new Bit[length];
+    Arrays.fill(out, Bit.Z);
+    return out;
+    }
+    
+    /**
+     * uses the {@link Bit#combineWith(Bit)} method, does not create a new array,
+     * the result is stored in the fist array.
+     * 
+     * @author Christian Femers
+     */
+    public static Bit[] combineInto(Bit[] dest, Bit[] addition)
+    {
+    if (dest.length != addition.length)
+        throw new IllegalArgumentException("Bit Arrays were not of equal length.");
+    for (int i = 0; i < addition.length; i++) {
+	    dest[i] = dest[i].combineWith(addition[i]);
+	}
+    return dest;
+    }
 
     interface BitOp
     {