Subversion Repositories robust_fir

<##//////////////////////////////////////////////////////////////////

////                                                             ////

////  Author: Eyal Hochberg                                      ////

////          eyal@provartec.com                                 ////

////                                                             ////

////  Downloaded from: http://www.opencores.org                  ////

/////////////////////////////////////////////////////////////////////

////                                                             ////

//// Copyright (C) 2010 Provartec LTD                            ////

//// www.provartec.com                                           ////

//// info@provartec.com                                          ////

////                                                             ////

//// 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.////

////                                                             ////

//// 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. http://www.gnu.org/licenses/lgpl.html              ////

////                                                             ////

//////////////////////////////////////////////////////////////////##>

##check all input parameters have been given

CHECK CONST(ORDER)

CHECK CONST(COEFF_BITS)

CHECK CONST(DIN_BITS)

SWAP NAME MAC_NUM_TOPO                       ##name of top module and file

SWAP INPUT_BITS DIN_BITS_COEFF_BITS            ##input sizes

SWAP TOPO ORDER_INPUT_BITS                     ##topology

SWAP COEFF_NUM EXPR(ORDER+1)                   ##number of coefficients

SWAP ADD_STAGES LOG2(COEFF_NUM)                ##number of binary tree adder stages

SWAP MULT_BITS EXPR(COEFF_BITS+DIN_BITS)       ##bits of mult product

SWAP DOUT_BITS EXPR(MULT_BITS+ADD_STAGES)      ##bits of output data (lossless)

##macros

SWAP MAC_EQ(X) TRUE(MAC_NUM==X)