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www.spiral.net
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Copyright (c) 2006 Joseph Trapasso for the Spiral Project
Carnegie Mellon University

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

This work is based on the following papers:

Yevgen Voronenko and Markus Püschel
Multiplierless Multiple Constant Multiplication
to appear in ACM Transactions on Algorithms

D. R. Bull and D. H. Horrocks
Primitive operator digital filters
IEE Proceedings G, 138(3):401-412, 1991

A. G. Dempster and M. D. Macleod Use of minimum-adder multiplier
blocks in FIR digital filters IEEE Transactions in Circuits and
Systems-II: Analog and Digital Signal Processing, 42(9):569-577, 1995

A. G. Dempster and M. D. Macleod.  Constant integer multiplication
using minimum adders IEE Proceedings - Circuits, Devices and Systems,
141(5):407-413, 1994