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diff --git a/contrib/libgmp/mpn/sparc64/submul_1.s b/contrib/libgmp/mpn/sparc64/submul_1.s
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+! 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., 59 Temple Place - Suite 330, Boston,
+! MA 02111-1307, 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