From 68b7efaadb1b6045a56277ea62d324c20ac0b633 Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@twiddle.net>
Date: Wed, 12 Feb 2014 06:54:57 -0800
Subject: Relocate alpha from ports to libc

Also fixed the following whitespace nits to satisfy the push:

sysdeps/alpha/alphaev6/memset.S:142: space before tab in indent.
sysdeps/alpha/configure:1: new blank line at EOF.
sysdeps/alpha/fpu/e_sqrt.c:126: space before tab in indent.
sysdeps/alpha/preconfigure:1: new blank line at EOF.
sysdeps/unix/sysv/linux/alpha/syscalls.list:1: new blank line at EOF.
---
 sysdeps/alpha/sub_n.S | 118 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100644 sysdeps/alpha/sub_n.S

(limited to 'sysdeps/alpha/sub_n.S')

diff --git a/sysdeps/alpha/sub_n.S b/sysdeps/alpha/sub_n.S
new file mode 100644
index 0000000000..bf77fd2d24
--- /dev/null
+++ b/sysdeps/alpha/sub_n.S
@@ -0,0 +1,118 @@
+ # Alpha __mpn_sub_n -- Subtract two limb vectors of the same length > 0 and
+ # store difference in a third limb vector.
+
+ # Copyright (C) 1995-2014 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.  If not, see <http://www.gnu.org/licenses/>.
+
+
+ # INPUT PARAMETERS
+ # res_ptr	$16
+ # s1_ptr	$17
+ # s2_ptr	$18
+ # size		$19
+
+	.set	noreorder
+	.set	noat
+.text
+	.align	3
+	.globl	__mpn_sub_n
+	.ent	__mpn_sub_n
+__mpn_sub_n:
+	.frame	$30,0,$26,0
+
+	ldq	$3,0($17)
+	ldq	$4,0($18)
+
+	subq	$19,1,$19
+	and	$19,4-1,$2	# number of limbs in first loop
+	bis	$31,$31,$0
+	beq	$2,.L0		# if multiple of 4 limbs, skip first loop
+
+	subq	$19,$2,$19
+
+.Loop0:	subq	$2,1,$2
+	ldq	$5,8($17)
+	addq	$4,$0,$4
+	ldq	$6,8($18)
+	cmpult	$4,$0,$1
+	subq	$3,$4,$4
+	cmpult	$3,$4,$0
+	stq	$4,0($16)
+	or	$0,$1,$0
+
+	addq	$17,8,$17
+	addq	$18,8,$18
+	bis	$5,$5,$3
+	bis	$6,$6,$4
+	addq	$16,8,$16
+	bne	$2,.Loop0
+
+.L0:	beq	$19,.Lend
+
+	.align	3
+.Loop:	subq	$19,4,$19
+
+	ldq	$5,8($17)
+	addq	$4,$0,$4
+	ldq	$6,8($18)
+	cmpult	$4,$0,$1
+	subq	$3,$4,$4
+	cmpult	$3,$4,$0
+	stq	$4,0($16)
+	or	$0,$1,$0
+
+	ldq	$3,16($17)
+	addq	$6,$0,$6
+	ldq	$4,16($18)
+	cmpult	$6,$0,$1
+	subq	$5,$6,$6
+	cmpult	$5,$6,$0
+	stq	$6,8($16)
+	or	$0,$1,$0
+
+	ldq	$5,24($17)
+	addq	$4,$0,$4
+	ldq	$6,24($18)
+	cmpult	$4,$0,$1
+	subq	$3,$4,$4
+	cmpult	$3,$4,$0
+	stq	$4,16($16)
+	or	$0,$1,$0
+
+	ldq	$3,32($17)
+	addq	$6,$0,$6
+	ldq	$4,32($18)
+	cmpult	$6,$0,$1
+	subq	$5,$6,$6
+	cmpult	$5,$6,$0
+	stq	$6,24($16)
+	or	$0,$1,$0
+
+	addq	$17,32,$17
+	addq	$18,32,$18
+	addq	$16,32,$16
+	bne	$19,.Loop
+
+.Lend:	addq	$4,$0,$4
+	cmpult	$4,$0,$1
+	subq	$3,$4,$4
+	cmpult	$3,$4,$0
+	stq	$4,0($16)
+	or	$0,$1,$0
+	ret	$31,($26),1
+
+	.end	__mpn_sub_n
-- 
cgit 1.4.1