/* Add two limb vectors of the same length > 0 and store sum in a third   limb vector.   Copyright (C) 1992,94,95,97,98,2000,2005 Free Software Foundation, Inc.   This file is part of the GNU MP Library.   The GNU MP Library is free software; you can redistribute it and/or modify   it under the terms of the GNU Lesser General Public License as published by   the Free Software Foundation; either version 2.1 of the License, or (at your   option) any later version.   The GNU MP 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 Lesser General Public   License for more details.   You should have received a copy of the GNU Lesser General Public License   along with the GNU MP Library; see the file COPYING.LIB.  If not, write to   the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,   MA 02111-1307, USA. */#include "sysdep.h"#include "asm-syntax.h"#include "bp-sym.h"#include "bp-asm.h"#define PARMS	LINKAGE+8		/* space for 2 saved regs */#define RES	PARMS#define S1	RES+PTR_SIZE#define S2	S1+PTR_SIZE#define SIZE	S2+PTR_SIZE	.text#ifdef PICL(1):	addl    (%esp), %eax	ret#endifENTRY (BP_SYM (__mpn_add_n))	ENTER	pushl %edi	cfi_adjust_cfa_offset (4)	pushl %esi	cfi_adjust_cfa_offset (4)	movl	RES(%esp),%edi	cfi_rel_offset (edi, 4)	movl	S1(%esp),%esi	cfi_rel_offset (esi, 0)	movl	S2(%esp),%edx	movl	SIZE(%esp),%ecx#if __BOUNDED_POINTERS__	shll	$2, %ecx	/* convert limbs to bytes */	CHECK_BOUNDS_BOTH_WIDE (%edi, RES(%esp), %ecx)	CHECK_BOUNDS_BOTH_WIDE (%esi, S1(%esp), %ecx)	CHECK_BOUNDS_BOTH_WIDE (%edx, S2(%esp), %ecx)	shrl	$2, %ecx#endif	movl	%ecx,%eax	shrl	$3,%ecx			/* compute count for unrolled loop */	negl	%eax	andl	$7,%eax			/* get index where to start loop */	jz	L(oop)			/* necessary special case for 0 */	incl	%ecx			/* adjust loop count */	shll	$2,%eax			/* adjustment for pointers... */	subl	%eax,%edi		/* ... since they are offset ... */	subl	%eax,%esi		/* ... by a constant when we ... */	subl	%eax,%edx		/* ... enter the loop */	shrl	$2,%eax			/* restore previous value */#ifdef PIC/* Calculate start address in loop for PIC.  */	leal	(L(oop)-L(0)-3)(%eax,%eax,8),%eax	call	L(1)L(0):#else/* Calculate start address in loop for non-PIC.  */ 	leal	(L(oop) - 3)(%eax,%eax,8),%eax#endif	jmp	*%eax			/* jump into loop */	ALIGN (3)L(oop):	movl	(%esi),%eax	adcl	(%edx),%eax	movl	%eax,(%edi)	movl	4(%esi),%eax	adcl	4(%edx),%eax	movl	%eax,4(%edi)	movl	8(%esi),%eax	adcl	8(%edx),%eax	movl	%eax,8(%edi)	movl	12(%esi),%eax	adcl	12(%edx),%eax	movl	%eax,12(%edi)	movl	16(%esi),%eax	adcl	16(%edx),%eax	movl	%eax,16(%edi)	movl	20(%esi),%eax	adcl	20(%edx),%eax	movl	%eax,20(%edi)	movl	24(%esi),%eax	adcl	24(%edx),%eax	movl	%eax,24(%edi)	movl	28(%esi),%eax	adcl	28(%edx),%eax	movl	%eax,28(%edi)	leal	32(%edi),%edi	leal	32(%esi),%esi	leal	32(%edx),%edx	decl	%ecx	jnz	L(oop)	sbbl	%eax,%eax	negl	%eax	popl %esi	cfi_adjust_cfa_offset (-4)	cfi_restore (esi)	popl %edi	cfi_adjust_cfa_offset (-4)	cfi_restore (edi)	LEAVE	retEND (BP_SYM (__mpn_add_n))