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(Binary.Rotate): added ulong methods.

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(Crc32.UpdateCrc): method made public.
This commit is contained in:
morkt 2016-01-15 11:50:13 +04:00
parent c9ab33addf
commit 410d40313e
1 changed files with 13 additions and 1 deletions
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14
GameRes/Utility.cs
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@ -114,6 +114,18 @@ namespace GameRes.Utility
return v << count | v >> (32-count);
}
public static ulong RotR (ulong v, int count)
{
count &= 0x3F;
return v >> count | v << (64-count);
}
public static ulong RotL (ulong v, int count)
{
count &= 0x3F;
return v << count | v >> (64-count);
}
public static byte RotByteR (byte v, int count)
{
count &= 7;
@ -254,7 +266,7 @@ namespace GameRes.Utility
should be initialized to all 1's, and the transmitted value
is the 1's complement of the final running CRC (see the
crc() routine below)). */
static uint UpdateCrc (uint crc, byte[] buf, int pos, int len)
public static uint UpdateCrc (uint crc, byte[] buf, int pos, int len)
{
uint c = crc;
for (int n = 0; n < len; n++)