//----------------------------------------------------------------------//
|
//----------------------------------------------------------------------//
|
// The MIT License
|
// The MIT License
|
//
|
//
|
// Copyright (c) 2008 Abhinav Agarwal, Alfred Man Cheuk Ng
|
// Copyright (c) 2008 Abhinav Agarwal, Alfred Man Cheuk Ng
|
// Contact: abhiag@gmail.com
|
// Contact: abhiag@gmail.com
|
//
|
//
|
// Permission is hereby granted, free of charge, to any person
|
// Permission is hereby granted, free of charge, to any person
|
// obtaining a copy of this software and associated documentation
|
// obtaining a copy of this software and associated documentation
|
// files (the "Software"), to deal in the Software without
|
// files (the "Software"), to deal in the Software without
|
// restriction, including without limitation the rights to use,
|
// restriction, including without limitation the rights to use,
|
// copy, modify, merge, publish, distribute, sublicense, and/or sell
|
// copy, modify, merge, publish, distribute, sublicense, and/or sell
|
// copies of the Software, and to permit persons to whom the
|
// copies of the Software, and to permit persons to whom the
|
// Software is furnished to do so, subject to the following conditions:
|
// Software is furnished to do so, subject to the following conditions:
|
//
|
//
|
// The above copyright notice and this permission notice shall be
|
// The above copyright notice and this permission notice shall be
|
// included in all copies or substantial portions of the Software.
|
// included in all copies or substantial portions of the Software.
|
//
|
//
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
// OTHER DEALINGS IN THE SOFTWARE.
|
// OTHER DEALINGS IN THE SOFTWARE.
|
//----------------------------------------------------------------------//
|
//----------------------------------------------------------------------//
|
|
|
#include "global_rs.h"
|
#include "global_rs.h"
|
#include "gf_arith.h"
|
#include "gf_arith.h"
|
#include "syndrome.h"
|
#include "syndrome.h"
|
|
|
#pragma hls_design
|
|
// Parameters k and t need to be dynamically used for each packet
|
// Parameters k and t need to be dynamically used for each packet
|
// However, this version uses static values for simplicity
|
// However, this version uses static values for simplicity
|
|
|
|
// Directive: Synthesize independently
|
void syndrome (unsigned char k, unsigned char t, unsigned char r[nn], unsigned char s[2*tt])
|
void syndrome (unsigned char k, unsigned char t, unsigned char r[nn], unsigned char s[2*tt])
|
{
|
{
|
unsigned char r_temp;
|
unsigned char r_temp;
|
|
|
#pragma unroll true
|
// Directive: Unroll loop maximally
|
Syn_Init: for (int j=0; j<2*tt; j++)
|
Syn_Init: for (int j=0; j<2*tt; j++)
|
s[j]=0;
|
s[j]=0;
|
|
|
Syn_Outer: for (int i = 0; i < nn; ++ i)
|
Syn_Outer: for (int i = 0; i < nn; ++ i)
|
{
|
{
|
r_temp = r[i];
|
r_temp = r[i];
|
|
|
#pragma unroll true
|
// Directive: Unroll loop maximally
|
Syn_Inner: for (int j = 0; j < 2*tt; ++ j)
|
Syn_Inner: for (int j = 0; j < 2*tt; ++ j)
|
{
|
{
|
// cout << "(" << (int) r [j] << ") "
|
|
// << (int) a << " : " << (int) s [i] << endl;
|
|
s[j] = gfmult_hw (s [j], alpha(j+1)) ^ r_temp;
|
s[j] = gfmult_hw (s [j], alpha(j+1)) ^ r_temp;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
