Add disassembled instructions to breakpoints

src/main/java/com/loomcom/symon/util/Utils.java

@@ -24,24 +24,9 @@
 package com.loomcom.symon.util;
 
 /**
- * Hex String Utilities.
- *
- * <p/>
- *
- * But why? Java, after all, has a number of ways to convert an integer into a hex string,
- * so it may look absurd to go to the trouble of writing yet another conversion! The answer is
- * performance.
- *
- * <p/>
- *
- * The most convenient way to get a formatted hex value from an integer is with the <code>String.format</code>
- * method, but this turns out to be extremely inefficient. Formatting a million integers
- * with <code>String.format</code> takes something like 1600ms. Formatting the same number of integers
- * with <code>HexUtil</code> takes only 160ms. This is on par with <code>Integer.toHexString</code>,
- * but also gives the desired padding.
- *
+ * Various Utilities
  */
-public class HexUtil {
+public class Utils {
 
     static final String NON_PRINTABLE = ".";
 
@@ -93,6 +78,7 @@ public class HexUtil {
 
     /**
      * Very fast 8-bit int to ASCII conversion.
+     *
      * @param val The value of an ASCII character.
      * @return A string representing the ASCII character.
      */
@@ -123,4 +109,11 @@ public class HexUtil {
     public static String wordToHex(int val) {
         return HEX_CONSTANTS[(val >> 8) & 0xff] + HEX_CONSTANTS[val & 0xff];
     }
+
+    /**
+     * Given two bytes, return an address.
+     */
+    public static int address(int lowByte, int hiByte) {
+        return ((hiByte << 8) | lowByte) & 0xffff;
+    }
 }