52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
/////////////////////////////////////////////////////////////////////////
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// $Id$
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2012-2013 The Bochs Project
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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/////////////////////////////////////////////////////////////////////////
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#ifndef BX_BSWAP_H
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#define BX_BSWAP_H
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BX_CPP_INLINE Bit16u bx_bswap16(Bit16u val16)
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{
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return (val16<<8) | (val16>>8);
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}
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#if BX_HAVE___BUILTIN_BSWAP32
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#define bx_bswap32 __builtin_bswap32
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#else
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BX_CPP_INLINE Bit32u bx_bswap32(Bit32u val32)
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{
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val32 = ((val32<<8) & 0xFF00FF00) | ((val32>>8) & 0x00FF00FF);
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return (val32<<16) | (val32>>16);
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}
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#endif
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#if BX_HAVE___BUILTIN_BSWAP64
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#define bx_bswap64 __builtin_bswap64
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#else
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BX_CPP_INLINE Bit64u bx_bswap64(Bit64u val64)
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{
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Bit32u lo = bx_bswap32((Bit32u)(val64 >> 32));
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Bit32u hi = bx_bswap32((Bit32u)(val64 & 0xFFFFFFFF));
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return ((Bit64u)hi << 32) | (Bit64u)lo;
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}
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#endif
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#endif
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