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6502bench/PluginCommon/Util.cs
2018-09-28 10:05:11 -07:00

51 lines
2.0 KiB
C#

/*
* Copyright 2018 faddenSoft
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using CommonUtil;
namespace PluginCommon {
/// <summary>
/// Utility functions available for plugins to use.
///
/// The idea is to make CommonUtil functions available to plugins while isolating
/// them from changes to the library. Anything here is guaranteed to keep working,
/// while other classes and functions in CommonUtil may change between releases.
/// </summary>
public static class Util {
/// <summary>
/// Extracts an integer from the data stream.
/// </summary>
/// <param name="data">Raw data stream.</param>
/// <param name="offset">Start offset.</param>
/// <param name="width">Word width, which may be 1-4 bytes.</param>
/// <param name="isBigEndian">True if word is in big-endian order.</param>
/// <returns>Value found.</returns>
public static int GetWord(byte[] data, int offset, int width, bool isBigEndian) {
return RawData.GetWord(data, offset, width, isBigEndian);
}
/// <summary>
/// Compute a standard CRC-32 (polynomial 0xedb88320) on a buffer of data.
/// </summary>
/// <param name="data">Buffer to process.</param>
/// <returns>CRC value.</returns>
public static uint ComputeBufferCRC(byte[] data) {
return CRC32.OnBuffer(0, data, 0, data.Length);
}
}
}