68 lines
2.1 KiB
Java
68 lines
2.1 KiB
Java
/*
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* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* To change this template, choose Tools | Templates
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* and open the template in the editor.
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*/
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package org.openjdk.asmtools.asmutils;
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/**
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*
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*/
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public class HexUtils {
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/*======================================================== Hex */
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private static final String hexString = "0123456789ABCDEF";
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private static final char hexTable[] = hexString.toCharArray();
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public static String toHex(long val, int width) {
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StringBuffer s = new StringBuffer();
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for (int i = width - 1; i >= 0; i--) {
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s.append(hexTable[((int) (val >> (4 * i))) & 0xF]);
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}
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return "0x" + s.toString();
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}
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public static String toHex(long val) {
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int width;
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for (width = 16; width > 0; width--) {
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if ((val >> (width - 1) * 4) != 0) {
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break;
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}
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}
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return toHex(val, width);
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}
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public static String toHex(int val) {
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int width;
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for (width = 8; width > 0; width--) {
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if ((val >> (width - 1) * 4) != 0) {
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break;
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}
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}
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return toHex(val, width);
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}
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}
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