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diff --git a/gmp/mpn/pa64/umul.asm b/gmp/mpn/pa64/umul.asm
new file mode 100644
index 00000000..635e44fe
--- /dev/null
+++ b/gmp/mpn/pa64/umul.asm
@@ -0,0 +1,88 @@
+dnl  Copyright 1999, 2000, 2002, 2003 Free Software Foundation, Inc.
+
+dnl  This file is part of the GNU MP Library.
+
+dnl  The GNU MP Library is free software; you can redistribute it and/or modify
+dnl  it under the terms of the GNU Lesser General Public License as published
+dnl  by the Free Software Foundation; either version 3 of the License, or (at
+dnl  your option) any later version.
+
+dnl  The GNU MP Library is distributed in the hope that it will be useful, but
+dnl  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+dnl  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+dnl  License for more details.
+
+dnl  You should have received a copy of the GNU Lesser General Public License
+dnl  along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.
+
+
+dnl  Optimizations:
+dnl  * Avoid skip instructions
+dnl  * Put carry-generating and carry-consuming insns consecutively
+dnl  * Don't allocate any stack, "home" positions for parameteters could be
+dnl    used.
+
+include(`../config.m4')
+
+define(`p0',`%r28')
+define(`p1',`%r29')
+define(`t32',`%r19')
+define(`t0',`%r20')
+define(`t1',`%r21')
+define(`x',`%r22')
+define(`m0',`%r23')
+define(`m1',`%r24')
+
+ifdef(`HAVE_ABI_2_0w',
+`	.level	2.0w
+',`	.level	2.0
+')
+PROLOGUE(mpn_umul_ppmm_r)
+	ldo		128(%r30),%r30
+ifdef(`HAVE_ABI_2_0w',
+`	std		%r26,-64(%r30)
+	std		%r25,-56(%r30)
+	copy		%r24,%r31
+',`
+	depd		%r25,31,32,%r26
+	std		%r26,-64(%r30)
+	depd		%r23,31,32,%r24
+	std		%r24,-56(%r30)
+	ldw		-180(%r30),%r31
+')
+
+	fldd		-64(%r30),%fr4
+	fldd		-56(%r30),%fr5
+
+	xmpyu		%fr5R,%fr4R,%fr6
+	fstd		%fr6,-128(%r30)
+	xmpyu		%fr5R,%fr4L,%fr7
+	fstd		%fr7,-120(%r30)
+	xmpyu		%fr5L,%fr4R,%fr8
+	fstd		%fr8,-112(%r30)
+	xmpyu		%fr5L,%fr4L,%fr9
+	fstd		%fr9,-104(%r30)
+
+	depdi,z		1,31,1,t32		C t32 = 2^32
+
+	ldd		-128(%r30),p0		C lo = low 64 bit of product
+	ldd		-120(%r30),m0		C m0 = mid0 64 bit of product
+	ldd		-112(%r30),m1		C m1 = mid1 64 bit of product
+	ldd		-104(%r30),p1		C hi = high 64 bit of product
+
+	add,l,*nuv	m0,m1,x			C x = m1+m0
+	 add,l		t32,p1,p1		C propagate carry to mid of p1
+	depd,z		x,31,32,t0		C lo32(m1+m0)
+	add		t0,p0,p0
+	extrd,u		x,31,32,t1		C hi32(m1+m0)
+	add,dc		t1,p1,p1
+
+	std		p0,0(%r31)		C store low half of product
+ifdef(`HAVE_ABI_2_0w',
+`	copy		p1,%r28			C return val in %r28
+',`	extrd,u		p1,31,32,%r28		C return val in %r28,%r29
+')
+	bve		(%r2)
+	ldo		-128(%r30),%r30
+EPILOGUE(mpn_umul_ppmm_r)
+