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[/] [turbocodes/] [trunk/] [src/] [vhdl/] [subs_synth.vhd] - Rev 7
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---------------------------------------------------------------------- ---- ---- ---- subs_synth.vhd ---- ---- ---- ---- This file is part of the turbo decoder IP core project ---- ---- http://www.opencores.org/projects/turbocodes/ ---- ---- ---- ---- Author(s): ---- ---- - David Brochart(dbrochart@opencores.org) ---- ---- ---- ---- All additional information is available in the README.txt ---- ---- file. ---- ---- ---- ---------------------------------------------------------------------- ---- ---- ---- Copyright (C) 2005 Authors ---- ---- ---- ---- This source file may be used and distributed without ---- ---- restriction provided that this copyright statement is not ---- ---- removed from the file and that any derivative work contains ---- ---- the original copyright notice and the associated disclaimer. ---- ---- ---- ---- This source file is free software; you can redistribute it ---- ---- and/or modify it under the terms of the GNU Lesser General ---- ---- Public License as published by the Free Software Foundation; ---- ---- either version 2.1 of the License, or (at your option) any ---- ---- later version. ---- ---- ---- ---- This source 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 Lesser General Public License for more ---- ---- details. ---- ---- ---- ---- You should have received a copy of the GNU Lesser General ---- ---- Public License along with this source; if not, download it ---- ---- from http://www.opencores.org/lgpl.shtml ---- ---- ---- ---------------------------------------------------------------------- architecture synth of subs is begin process (op1, op2) begin res <= std_logic_vector(conv_unsigned(conv_integer(unsigned(op1)) - conv_integer(unsigned(op2)), res'length)); end process; end;