diff -r ff57af563cb8 -r 6cad41d877d2 vm/src/test/java/org/apidesign/vm4brwsr/Numbers.java
--- a/vm/src/test/java/org/apidesign/vm4brwsr/Numbers.java	Thu Feb 07 16:11:53 2013 +0100
+++ b/vm/src/test/java/org/apidesign/vm4brwsr/Numbers.java	Thu Feb 07 17:24:19 2013 +0100
@@ -67,86 +67,4 @@
     static String floatToString() {
         return new Float(7.0).toString().toString();
     }
-    
-    public static long shlL(byte[] arrValue, int nBits) throws IOException {
-        ByteArrayInputStream isValue = new ByteArrayInputStream(arrValue);
-        DataInputStream disValue = new DataInputStream(isValue);
-        return (disValue.readLong() << nBits);
-    }
-    
-    public static long shrL(byte[] arrValue, int nBits) throws IOException {
-        ByteArrayInputStream isValue = new ByteArrayInputStream(arrValue);
-        DataInputStream disValue = new DataInputStream(isValue);
-        return (disValue.readLong() >> nBits);
-    }
-    
-    public static long ushrL(byte[] arrValue, int nBits) throws IOException {
-        ByteArrayInputStream isValue = new ByteArrayInputStream(arrValue);
-        DataInputStream disValue = new DataInputStream(isValue);
-        return (disValue.readLong() >>> nBits);
-    }
-    
-    public static long andL(byte[] arrX, byte[] arrY) throws IOException {
-        ByteArrayInputStream isX = new ByteArrayInputStream(arrX);
-        DataInputStream disX = new DataInputStream(isX);
-        ByteArrayInputStream isY = new ByteArrayInputStream(arrY);
-        DataInputStream disY = new DataInputStream(isY);
-        return (disX.readLong() & disY.readLong());
-    }
-    
-    public static long orL(byte[] arrX, byte[] arrY) throws IOException {
-        ByteArrayInputStream isX = new ByteArrayInputStream(arrX);
-        DataInputStream disX = new DataInputStream(isX);
-        ByteArrayInputStream isY = new ByteArrayInputStream(arrY);
-        DataInputStream disY = new DataInputStream(isY);
-        return (disX.readLong() | disY.readLong());
-    }
-    
-    public static long xorL(byte[] arrX, byte[] arrY) throws IOException {
-        ByteArrayInputStream isX = new ByteArrayInputStream(arrX);
-        DataInputStream disX = new DataInputStream(isX);
-        ByteArrayInputStream isY = new ByteArrayInputStream(arrY);
-        DataInputStream disY = new DataInputStream(isY);
-        return (disX.readLong() ^ disY.readLong());
-    }
-
-    public static int compareL(byte[] arrX, byte[] arrY,
-                               int zero) throws IOException {
-        ByteArrayInputStream isX = new ByteArrayInputStream(arrX);
-        DataInputStream disX = new DataInputStream(isX);
-        ByteArrayInputStream isY = new ByteArrayInputStream(arrY);
-        DataInputStream disY = new DataInputStream(isY);
-        final long x = disX.readLong();
-        final long y = disY.readLong();
-
-        final int xyResult = compareL(x, y, zero);
-        final int yxResult = compareL(y, x, zero);
-
-        return ((xyResult + yxResult) == 0) ? xyResult : -2;
-    }
-
-    private static int compareL(long x, long y, int zero) {
-        int result = -2;
-        int trueCount = 0;
-
-        x += zero;
-        if (x == y) {
-            result = 0;
-            ++trueCount;
-        }
-
-        x += zero;
-        if (x < y) {
-            result = -1;
-            ++trueCount;
-        }
-
-        x += zero;
-        if (x > y) {
-            result = 1;
-            ++trueCount;
-        }
-
-        return (trueCount == 1) ? result : -2;
-    }
 }