* stdlib/Makefile (mpn-stuff): New target.

	(copy-mpn): Use it.

	* Code copied from GMP updated to 1.937 version.
	* stdlib/strtod.c (HAVE_ALLOCA): Define this for gmp headers.

1 files changed, 88 insertions, 0 deletions

diff --git a/sysdeps/sparc/sparc64/submul_1.s b/sysdeps/sparc/sparc64/submul_1.s
new file mode 100644
index 0000000000..f0df38c3bc
--- /dev/null
+++ b/sysdeps/sparc/sparc64/submul_1.s
@@ -0,0 +1,88 @@
+! SPARC v9 __mpn_submul_1 -- Multiply a limb vector with a single limb and
+! subtract the product from a second limb vector.
+
+! Copyright (C) 1996 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 Library General Public License as published by
+! the Free Software Foundation; either version 2 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 Library General Public
+! License for more details.
+
+! You should have received a copy of the GNU Library General Public License
+! along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
+! the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+
+! INPUT PARAMETERS
+! res_ptr	o0
+! s1_ptr	o1
+! size		o2
+! s2_limb	o3
+
+.section	".text"
+	.align 4
+	.global __mpn_submul_1
+	.type	 __mpn_submul_1,#function
+	.proc	016
+__mpn_submul_1:
+	!#PROLOGUE#	0
+	save	%sp,-160,%sp
+	!#PROLOGUE#	1
+	sub	%g0,%i2,%o7
+	sllx	%o7,3,%g5
+	sub	%i1,%g5,%o3
+	sub	%i0,%g5,%o4
+	mov	0,%o0			! zero cy_limb
+
+	srl	%i3,0,%o1		! extract low 32 bits of s2_limb
+	srlx	%i3,32,%i3		! extract high 32 bits of s2_limb
+	mov	1,%o2
+	sllx	%o2,32,%o2		! o2 = 0x100000000
+
+	!   hi   !
+             !  mid-1 !
+             !  mid-2 !
+		 !   lo   !
+.Loop:
+	sllx	%o7,3,%g1
+	ldx	[%o3+%g1],%g5
+	srl	%g5,0,%i0		! zero hi bits
+	srlx	%g5,32,%g5
+	mulx	%o1,%i0,%i4		! lo product
+	mulx	%i3,%i0,%i1		! mid-1 product
+	mulx	%o1,%g5,%l2		! mid-2 product
+	mulx	%i3,%g5,%i5		! hi product
+	srlx	%i4,32,%i0		! extract high 32 bits of lo product...
+	add	%i1,%i0,%i1		! ...and add it to the mid-1 product
+	addcc	%i1,%l2,%i1		! add mid products
+	mov	0,%l0			! we need the carry from that add...
+	movcs	%xcc,%o2,%l0		! ...compute it and...
+	add	%i5,%l0,%i5		! ...add to bit 32 of the hi product
+	sllx	%i1,32,%i0		! align low bits of mid product
+	srl	%i4,0,%g5		! zero high 32 bits of lo product
+	add	%i0,%g5,%i0		! combine into low 64 bits of result
+	srlx	%i1,32,%i1		! extract high bits of mid product...
+	add	%i5,%i1,%i1		! ...and add them to the high result
+	addcc	%i0,%o0,%i0		! add cy_limb to low 64 bits of result
+	mov	0,%g5
+	movcs	%xcc,1,%g5
+	add	%o7,1,%o7
+	ldx	[%o4+%g1],%l1
+	subcc	%l1,%i0,%i0
+	movcs	%xcc,1,%g5
+	stx	%i0,[%o4+%g1]
+	brnz	%o7,.Loop
+	add	%i1,%g5,%o0		! compute new cy_limb
+
+	mov	%o0,%i0
+	ret
+	restore
+.LLfe1:
+	.size  __mpn_submul_1,.LLfe1-__mpn_submul_1