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[/] [bluespec-reedsolomon/] [trunk/] [sw-reedsolomon/] [syndrome.cpp] - Rev 5
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//----------------------------------------------------------------------// // The MIT License // // Copyright (c) 2008 Abhinav Agarwal, Alfred Man Cheuk Ng // Contact: abhiag@gmail.com // // Permission is hereby granted, free of charge, to any person // obtaining a copy of this software and associated documentation // files (the "Software"), to deal in the Software without // restriction, including without limitation the rights to use, // copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be // included in all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES // OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, // WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR // OTHER DEALINGS IN THE SOFTWARE. //----------------------------------------------------------------------// #include "global_rs.h" #include "gf_arith.h" #include "syndrome.h" #pragma hls_design // Parameters k and t need to be dynamically used for each packet // However, this version uses static values for simplicity void syndrome (unsigned char k, unsigned char t, unsigned char r[nn], unsigned char s[2*tt]) { unsigned char r_temp; #pragma unroll true Syn_Init: for (int j=0; j<2*tt; j++) s[j]=0; Syn_Outer: for (int i = 0; i < nn; ++ i) { r_temp = r[i]; #pragma unroll true 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; } } }
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