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Code modernization

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This commit is contained in:
Chris Kaczor
2015-01-16 17:55:23 -05:00
parent 0b250cd7d3
commit 47db415506
15 changed files with 1097 additions and 1312 deletions
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36
owCRC16.cs
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@@ -1,16 +1,8 @@
using System;
namespace OneWireAPI
{
internal class owCRC16
{
#region CRC lookup table
private static short[] m_aOddParity = { 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0 };
#endregion
#region Methods
private static readonly short[] OddParity = { 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0 };
public static int Calculate(byte[] nData, int iStart, int iEnd)
{
@@ -19,7 +11,7 @@ namespace OneWireAPI
public static int Calculate(byte nData, int iInitialValue)
{
byte[] aData = new byte[1];
var aData = new byte[1];
aData[0] = nData;
@@ -28,34 +20,32 @@ namespace OneWireAPI
public static int Calculate(byte[] nData, int iStart, int iEnd, int iInitialValue)
{
int iIndex; // Loop index
int iCurrentCRC = iInitialValue; // Current CRC accumulator
int index; // Loop index
var currentCrc = iInitialValue; // Current CRC accumulator
// Loop over all bytes in the input array
for (iIndex = iStart; iIndex <= iEnd; iIndex++)
for (index = iStart; index <= iEnd; index++)
{
// Get the current element of data
int iBuffer = nData[iIndex];
int iBuffer = nData[index];
// Calculate the current CRC for this position
iBuffer = (iBuffer ^ (iCurrentCRC & 0xFF)) & 0xFF;
iBuffer = (iBuffer ^ (currentCrc & 0xFF)) & 0xFF;
iCurrentCRC >>= 8;
currentCrc >>= 8;
if ((m_aOddParity[iBuffer & 0xF] ^ m_aOddParity[iBuffer >> 4]) != 0)
iCurrentCRC ^= 0xC001;
if ((OddParity[iBuffer & 0xF] ^ OddParity[iBuffer >> 4]) != 0)
currentCrc ^= 0xC001;
iBuffer <<= 6;
iCurrentCRC ^= iBuffer;
currentCrc ^= iBuffer;
iBuffer <<= 1;
iCurrentCRC ^= iBuffer;
currentCrc ^= iBuffer;
}
// Return the final CRC value
return iCurrentCRC;
return currentCrc;
}
#endregion
}
}