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diff --git a/rts/gmp/mpn/x86/p6/p3mmx/popham.asm b/rts/gmp/mpn/x86/p6/p3mmx/popham.asm
new file mode 100644
index 0000000..e63fbf3
--- /dev/null
+++ b/rts/gmp/mpn/x86/p6/p3mmx/popham.asm
@@ -0,0 +1,30 @@
+dnl  Intel Pentium-III mpn_popcount, mpn_hamdist -- population count and
+dnl  hamming distance.
+
+dnl  Copyright (C) 2000 Free Software Foundation, Inc.
+dnl 
+dnl  This file is part of the GNU MP Library.
+dnl 
+dnl  The GNU MP Library is free software; you can redistribute it and/or
+dnl  modify it under the terms of the GNU Lesser General Public License as
+dnl  published by the Free Software Foundation; either version 2.1 of the
+dnl  License, or (at your option) any later version.
+dnl 
+dnl  The GNU MP Library is distributed in the hope that it will be useful,
+dnl  but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+dnl  Lesser General Public License for more details.
+dnl 
+dnl  You should have received a copy of the GNU Lesser General Public
+dnl  License along with the GNU MP Library; see the file COPYING.LIB.  If
+dnl  not, write to the Free Software Foundation, Inc., 59 Temple Place -
+dnl  Suite 330, Boston, MA 02111-1307, USA.
+
+
+dnl  Haven't actually measured it, but the K7 code with the psadbw should be
+dnl  good on P-III.
+
+include(`../config.m4')
+
+MULFUNC_PROLOGUE(mpn_popcount mpn_hamdist)
+include_mpn(`x86/k7/mmx/popham.asm')