1 files changed, 105 insertions, 0 deletions
diff --git a/src/kvilib/core/kvi_memmove.h b/src/kvilib/core/kvi_memmove.h
new file mode 100644
index 00000000..d1319a41
--- /dev/null
+++ b/src/kvilib/core/kvi_memmove.h
@@ -0,0 +1,105 @@
+#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_