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File: [local] / OpenXM_contrib / gmp / mpn / z8000x / Attic / add_n.s (download)

Revision 1.1.1.2 (vendor branch), Sat Sep 9 14:12:44 2000 UTC (23 years, 9 months ago) by maekawa
Branch: GMP
CVS Tags: maekawa-ipv6, VERSION_3_1_1, VERSION_3_1, RELEASE_1_2_2, RELEASE_1_2_1, RELEASE_1_1_3
Changes since 1.1.1.1: +8 -8 lines 

Import gmp 3.1

! Z8000 (32 bit limb version) __gmpn_add_n -- Add two limb vectors of equal,
! non-zero length.

! Copyright (C) 1993, 1994, 2000 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.


! INPUT PARAMETERS
! res_ptr	r7
! s1_ptr	r6
! s2_ptr	r5
! size		r4

! If we are really crazy, we can use push to write a few result words
! backwards, using push just because it is faster than reg+disp.  We'd
! then add 2x the number of words written to r7...

	segm
	.text
	even
	global ___gmpn_add_n
___gmpn_add_n:
	popl	rr0,@r6
	popl	rr8,@r5
	addl	rr0,rr8
	ldl	@r7,rr0
	dec	r4
	jr	eq,Lend
Loop:	popl	rr0,@r6
	popl	rr8,@r5
	adc	r1,r9
	adc	r0,r8
	inc	r7,#4
	ldl	@r7,rr0
	dec	r4
	jr	ne,Loop
Lend:	ld	r2,r4		! use 0 already in r4
	ld	r3,r4
	adc	r2,r2
	ret	t