panthema / 2006 / SDIOS06 / sdios06 / serv / sigma0 / crt0-ia64.S (Download File)
/*********************************************************************
 *                
 * Copyright (C) 2002,  Karlsruhe University
 *                
 * File path:     crt0-ia64.S
 * Description:   Startup code for ia64 processors
 *                
 * 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, 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
 *                
 * $Id: crt0-ia64.S,v 1.2.4.1 2003/09/24 19:13:55 skoglund Exp $
 *                
 ********************************************************************/
#include <config.h>

	.text
	.global _start
	.align	16
	.proc	_start
_start:
	movl	gp = __gp
	movl	r8 = reg_stack
	movl	sp = stack
	mov	ar.rsc = 0		// turn off RSE
	;;
	mov	ar.bspstore = r8
	;;
	mov	ar.rsc = 3		// turn RSE back on
	;;
	alloc	r8 = ar.pfs,0,0,0,0
	br.sptk.many sigma0_main

	/* NOTREACHED */
	.endp	_start

	.bss
	.align 16
reg_stack:
	.space	8192-16
stack:
	.space	16