1997-05-08 17:38:29 +04:00
|
|
|
/* $NetBSD: alloca.S,v 1.2 1997/05/08 13:38:32 matthias Exp $ */
|
|
|
|
|
1993-10-07 03:17:24 +03:00
|
|
|
/*
|
|
|
|
* Copyright (c) 1992 Helsinki University of Technology
|
|
|
|
* All Rights Reserved.
|
|
|
|
*
|
|
|
|
* Permission to use, copy, modify and distribute this software and its
|
|
|
|
* documentation is hereby granted, provided that both the copyright
|
|
|
|
* notice and this permission notice appear in all copies of the
|
|
|
|
* software, derivative works or modified versions, and any portions
|
|
|
|
* thereof, and that both notices appear in supporting documentation.
|
|
|
|
*
|
|
|
|
* HELSINKI UNIVERSITY OF TECHNOLOGY ALLOWS FREE USE OF THIS SOFTWARE IN
|
|
|
|
* ITS "AS IS" CONDITION. HELSINKI UNIVERSITY OF TECHNOLOGY DISCLAIMS ANY
|
|
|
|
* LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE
|
|
|
|
* USE OF THIS SOFTWARE.
|
|
|
|
*/
|
|
|
|
/*
|
|
|
|
* HISTORY
|
|
|
|
* 29-Apr-92 Johannes Helander (jvh) at Helsinki University of Technology
|
|
|
|
* Created.
|
|
|
|
*/
|
|
|
|
/*
|
|
|
|
* Note: Saved registers are accessed through the frame pointer so
|
|
|
|
* no special magic is required here.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <machine/asm.h>
|
|
|
|
|
1997-05-08 17:38:29 +04:00
|
|
|
#if defined(LIBC_SCCS)
|
|
|
|
RCSID("$NetBSD: alloca.S,v 1.2 1997/05/08 13:38:32 matthias Exp $")
|
|
|
|
#endif
|
|
|
|
|
1993-10-07 03:17:24 +03:00
|
|
|
ENTRY(alloca)
|
|
|
|
movd tos,r2 /* get return address */
|
|
|
|
movd tos,r1 /* get length */
|
|
|
|
sprd sp,r0
|
|
|
|
subd r1,r0
|
|
|
|
lprd sp,r0
|
|
|
|
movd r1,tos
|
|
|
|
jump 0(r2)
|