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#ifndef _KVI_MEMMOVE_H_
#define _KVI_MEMMOVE_H_
//=============================================================================
//
// File : kvi_memmove.h
// Creation date : Fri Mar 19 1999 03:15:21 CEST by Szymon Stefanek
//
// This file is part of the KVirc irc client distribution
// Copyright (C) 1999-2006 Szymon Stefanek (pragma at kvirc dot net)
//
// This program is FREE software. You can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your opinion) any later version.
//
// This program is distributed in the HOPE that it will be USEFUL,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, write to the Free Software Foundation,
// Inc. ,51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
//=============================================================================
#define __KVILIB__
#include "kvi_settings.h"
//#undef COMPILE_WITH_SYSTEM_MEMMOVE
//#define COMPILE_MMX_ASM
#ifndef _KVI_MEMMOVE_CPP_
#ifdef COMPILE_WITH_SYSTEM_MEMMOVE
#include <string.h>
#define kvi_memmove memmove
#define kvi_memmoveodd memmove
#define kvi_memset memset
#define kvi_fastmove memcpy
#define kvi_fastmoveodd memcpy
#else
#ifdef COMPILE_ON_WINDOWS
#error "This stuff should be never compiled on Windows"
#endif
extern void *kvi_memmove(void *dst_ptr,const void *src_ptr,int len);
extern void *kvi_memmoveodd(void *dst_ptr,const void *src_ptr,int len);
extern void *kvi_memset(void *dst_ptr,char c,int len);
// In fastmove the src and dst may not overlap
#ifdef COMPILE_ix86_ASM
// WE WANT repnz; movsq\n"!!!
inline void kvi_fastmove(void * dst_ptr,const void *src_ptr,int len)
{
__asm__ __volatile__(
" cld\n"
" shr $1,%0\n"
" jnc 1f\n"
" movsb\n"
"1:\n"
" shr $1,%0\n"
" jnc 2f\n"
" movsw\n"
"2:\n"
" repnz; movsl\n"
: "=c" (len), "=&S" (src_ptr), "=&D" (dst_ptr)
: "0" (len), "1" (src_ptr), "2" (dst_ptr)
);
}
inline void kvi_fastmoveodd(void * dst_ptr,const void *src_ptr,int len)
{
__asm__ __volatile__(
" cld\n"
" shr $2,%0\n"
" jnc 1f\n"
" movsw\n"
"1:\n"
" repnz; movsl\n"
: "=c" (len), "=&S" (src_ptr), "=&D" (dst_ptr)
: "0" (len), "1" (src_ptr), "2" (dst_ptr)
);
}
#else // ! COMPILE_ix86_ASM
extern void kvi_fastmove(void *dst_ptr,const void *src_ptr,int len);
extern void kvi_fastmoveodd(void *dst_ptr,const void *src_ptr,int len);
#endif // !COMPILE_ix86_ASM
#endif // COMPILE_WITH_SYSTEM_MEMMOVE
#endif // _KVI_MEMMOVE_CPP_
#endif // !_KVI_MEMMOVE_H_
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