Simone
d074cc7c07
Plugin: ns7zip v2.0.0 Architectures: x86-ansi, x86-unicode, amd64-unicode License: LGPL-2.1-or-later
33 lines
585 B
C++
33 lines
585 B
C++
// BitlDecoder.cpp
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#include "StdAfx.h"
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#include "BitlDecoder.h"
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namespace NBitl {
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#if defined(Z7_BITL_USE_REVERSE_BITS_TABLE)
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MY_ALIGN(64)
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Byte kReverseTable[256];
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static
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struct CReverseerTableInitializer
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{
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CReverseerTableInitializer()
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{
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for (unsigned i = 0; i < 256; i++)
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{
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unsigned
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x = ((i & 0x55) << 1) | ((i >> 1) & 0x55);
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x = ((x & 0x33) << 2) | ((x >> 2) & 0x33);
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kReverseTable[i] = (Byte)((x << 4) | (x >> 4));
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}
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}
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} g_ReverseerTableInitializer;
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#elif 0
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unsigned ReverseBits8test(unsigned i) { return ReverseBits8(i); }
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#endif
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}
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