freebsd-dev/sys/boot/arc/lib/arch/alpha/start.S
1999-08-28 01:08:13 +00:00

64 lines
1.8 KiB
ArmAsm

/*
* Copyright (c) 1999, Stefan Esser <se@freebsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*
*/
/*
* Based on /sys/boot/alpha/libalpha/start.S
* Copyright (c) 1992 Carnegie Mellon University
*/
#include <machine/asm.h>
.text
#define ENTRY_FRAME 32
NESTED(_start, 1, ENTRY_FRAME, ra, 0, 0)
br pv,Lstartgp
Lstartgp:
LDGP(pv)
lda a0,_edata
lda a1,_end
subq a1,a0,a1
CALL(bzero)
lda sp, -8(sp)
stq ra, 0(sp)
CALL(main) /* transfer to C */
ldq ra, 0(sp)
lda sp, 8(sp)
RET /* XXX */
XLEAF(_rtt, 0)
XLEAF(halt, 0)
call_pal PAL_halt /* halt if we ever return */
END(_start)