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diff --git a/gmp/mpn/powerpc32/750/com_n.asm b/gmp/mpn/powerpc32/750/com_n.asm
new file mode 100644
index 00000000..02fc4b65
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+++ b/gmp/mpn/powerpc32/750/com_n.asm
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+dnl  PowerPC 750 mpn_com_n -- mpn bitwise one's complement
+
+dnl  Copyright 2002, 2003 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 3 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 License
+dnl  along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.
+
+include(`../config.m4')
+
+
+C                cycles/limb
+C 603e:            ?
+C 604e:            3.0
+C 75x (G3):        2.0
+C 7400,7410 (G4):  2.0
+C 744x,745x (G4+): 3.0
+
+C void mpn_com_n (mp_ptr dst, mp_srcptr src, mp_size_t size);
+C
+C This loop form is necessary for the claimed speed.
+
+ASM_START()
+PROLOGUE(mpn_com_n)
+
+	C r3	dst
+	C r4	src
+	C r5	size
+
+	mtctr	r5		C size
+	lwz	r5, 0(r4)	C src low limb
+
+	sub	r4, r4, r3	C src-dst
+	subi	r3, r3, 4	C dst-4
+
+	addi	r4, r4, 8	C src-dst+8
+	bdz	L(one)
+
+L(top):
+	C r3	&dst[i-1]
+	C r4	src-dst
+	C r5	src[i]
+	C r6	scratch
+
+	not	r6, r5		C ~src[i]
+	lwzx	r5, r4,r3	C src[i+1]
+
+	stwu	r6, 4(r3)	C dst[i]
+	bdnz	L(top)
+
+L(one):
+	not	r6, r5
+
+	stw	r6, 4(r3)	C dst[size-1]
+	blr
+
+EPILOGUE()