/*
    This file is part of SUPPL - the supplemental library for DOS
    Copyright (C) 1996-2000 Steffen Kaiser

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This 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
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public
    License along with this library; if not, write to the Free
    Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $RCSfile: longclr.c,v $
   $Locker:  $	$Name:  $	$State: Exp $

ob(ject): longclr
su(bsystem): longmath
ty(pe): A
sh(ort description): Clears a 32bit number
lo(ng description): 
pr(erequistes): 
va(lue): none; \tok{num := 0}
re(lated to): longset
se(condary subsystems): portable
in(itialized by): 
wa(rning): 
bu(gs): 
co(mpilers): A function for non-32bit-aware compilers, a macro otherwise.

*/

#include "initsupl.loc"

#ifdef _MICROC_

#include "suppl.h"

#include "suppldbg.h"

#ifdef RCS_Version
static char const rcsid[] = 
	"$Id: longclr.c,v 1.1 2006/06/17 03:25:05 blairdude Exp $";
#endif

void longclr(nM(dword *)num)
{	assert(num);
#if LSIZE == 4
	asm {
		mov bx, 4[bp]
		xor ax, ax
		mov Word Ptr [bx], ax
		mov Word Ptr 2[bx], ax
	}
#else
	LSIZE / 2;
	asm {
		mov di, 4[bp]
		mov cx, ax
		mov ax, ds
		mov es, ax
		xor ax, ax
		rep stos Word Ptr [DI]
	}
#endif
}
#endif
