/*
Copyright (C) 2004-2017,2018 John E. Davis

This file is part of the S-Lang Library.

The S-Lang Library 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 option) any later version.

The S-Lang Library 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 library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
USA.
*/

/* These routines are fast memcpy, memset routines.  When available, I
   use system rouines.  For msdos, I use inline assembly. */

/* The current versions only work in the forward direction only!! */

#include "slinclud.h"

#include "slang.h"
#include "_slang.h"

void SLmemset(char *p, char space, int n)
{
#if defined(__BORLANDC__) && defined(__MSDOS__)
   asm mov al, space
   asm mov dx, di
   asm mov cx, n
   asm les di, p
   asm cld
   asm rep stosb
   asm mov di, dx
#else
   register char *pmax;

   pmax = p + (n - 4);
   n = n % 4;
   while (p <= pmax)
     {
	*p++ = space; *p++ = space; *p++ = space; *p++= space;
     }
   while (n--) *p++ = space;
#endif
}
