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[/] [reed_solomon_codec_generator/] [trunk/] [source/] [RsDecodeErasure.cpp] - Rev 2
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//=================================================================== // Module Name : RsDecodeErasure // File Name : RsDecodeErasure.cpp // Function : RTL Decoder Erasure polynomial Module generation // // Revision History: // Date By Version Change Description //=================================================================== // 2009/02/03 Gael Sapience 1.0 Original // //=================================================================== // (C) COPYRIGHT 2009 SYSTEM LSI CO., Ltd. // #include <stdio.h> #include <stdlib.h> #include <iostream> #include<windows.h> #include<fstream> #include <string.h> using namespace std; FILE *OutFileDecodeErasure; void RsGfMultiplier( int*, int*,int*, int, int); void RsDecodeErasure(int DataSize, int TotalSize, int PrimPoly, int bitSymbol, int passFailFlag, int ErasureOption, int *MrefTab, int *PrefTab, int *coeffTab, int pathFlag, int lengthPath, char *rootFolderPath) { //--------------------------------------------------------------- // c++ variables //--------------------------------------------------------------- int syndromeLength; int ii; int MaxValue; int initValue; int Pidx; int init; int idx1; int idx2; int countSize; int mmTabSize = (bitSymbol*2) -1; int tempNum; int *bbTab; int *ppTab; int *ttTab; int *powerTab; int *bidon; char *strRsDecodeErasure; bbTab =new int[bitSymbol]; ppTab =new int[bitSymbol]; ttTab =new int[bitSymbol]; powerTab =new int[bitSymbol]; bidon =new int[bitSymbol]; //--------------------------------------------------------------- // syndrome Length calculation //--------------------------------------------------------------- syndromeLength = TotalSize - DataSize; countSize = 0; if (TotalSize > 2047) { countSize = 12; } else{ if (TotalSize > 1023) { countSize = 11; } else{ if (TotalSize > 511) { countSize = 10; }else{ if (TotalSize > 255) { countSize = 9; }else{ if (TotalSize > 127) { countSize = 8; }else{ if (TotalSize > 63) { countSize = 7; }else{ if (TotalSize > 31) { countSize = 6; }else{ if (TotalSize > 15) { countSize = 5; }else{ if (TotalSize > 7) { countSize = 4; }else{ if (TotalSize > 3) { countSize = 3; }else{ countSize = 2; } } } } } } } } } } //--------------------------------------------------------------- // MaxValue calculation //--------------------------------------------------------------- MaxValue = 2; for(ii=0; ii<(bitSymbol-1); ii++){ MaxValue = MaxValue*2; } int param1 = MaxValue - TotalSize; //--------------------------------------------------------------- // powerTab calculation //--------------------------------------------------------------- powerTab[0] = 1; for (ii=1; ii<bitSymbol;ii++){ powerTab[ii] = 2*powerTab[ii-1]; } //--------------------------------------------------------------- // open file //--------------------------------------------------------------- strRsDecodeErasure = (char *)calloc(lengthPath + 23, sizeof(char)); if (pathFlag == 0) { strRsDecodeErasure[0] = '.'; }else{ for(ii=0; ii<lengthPath; ii++){ strRsDecodeErasure[ii] = rootFolderPath[ii]; } } strcat(strRsDecodeErasure, "/rtl/RsDecodeErasure.v"); OutFileDecodeErasure = fopen(strRsDecodeErasure,"w"); //--------------------------------------------------------------- // header file //--------------------------------------------------------------- fprintf(OutFileDecodeErasure, "//===================================================================\n"); fprintf(OutFileDecodeErasure, "// Module Name : RsDecodeErasure\n"); fprintf(OutFileDecodeErasure, "// File Name : RsDecodeErasure.v\n"); fprintf(OutFileDecodeErasure, "// Function : Rs Decoder Erasure polynomial calculation Module\n"); fprintf(OutFileDecodeErasure, "// \n"); fprintf(OutFileDecodeErasure, "// Revision History:\n"); fprintf(OutFileDecodeErasure, "// Date By Version Change Description\n"); fprintf(OutFileDecodeErasure, "//===================================================================\n"); fprintf(OutFileDecodeErasure, "// 2009/02/03 Gael Sapience 1.0 Original\n"); fprintf(OutFileDecodeErasure, "//\n"); fprintf(OutFileDecodeErasure, "//===================================================================\n"); fprintf(OutFileDecodeErasure, "// (C) COPYRIGHT 2009 SYSTEM LSI CO., Ltd.\n"); fprintf(OutFileDecodeErasure, "//\n\n\n"); //--------------------------------------------------------------- // Ports Declaration //--------------------------------------------------------------- fprintf(OutFileDecodeErasure, "module RsDecodeErasure(\n"); fprintf(OutFileDecodeErasure, " CLK, // system clock\n"); fprintf(OutFileDecodeErasure, " RESET, // system reset\n"); fprintf(OutFileDecodeErasure, " enable, // enable signal\n"); fprintf(OutFileDecodeErasure, " sync, // sync signal\n"); fprintf(OutFileDecodeErasure, " erasureIn, // erasure input\n"); for (ii=0; ii<(syndromeLength+1); ii++){ if (ii < 10) { fprintf(OutFileDecodeErasure, " epsilon_%d, // epsilon polynom %d\n",ii,ii); }else{ fprintf(OutFileDecodeErasure, " epsilon_%d, // epsilon polynom %d\n",ii,ii); } } fprintf(OutFileDecodeErasure, " numErasure, // erasure amount\n"); if (passFailFlag == 1){ fprintf(OutFileDecodeErasure, " fail, // decoder failure signal\n"); } fprintf(OutFileDecodeErasure, " done // done signal\n"); fprintf(OutFileDecodeErasure, ");\n\n\n"); fprintf(OutFileDecodeErasure, " input CLK; // system clock\n"); fprintf(OutFileDecodeErasure, " input RESET; // system reset\n"); fprintf(OutFileDecodeErasure, " input enable; // enable signal\n"); fprintf(OutFileDecodeErasure, " input sync; // sync signal\n"); fprintf(OutFileDecodeErasure, " input erasureIn; // erasure input\n"); for (ii=0; ii<(syndromeLength+1);ii++){ if (ii < 10) { fprintf(OutFileDecodeErasure, " output [%d:0] epsilon_%d; // syndrome polynom %d\n",(bitSymbol-1), ii, ii); }else{ fprintf(OutFileDecodeErasure, " output [%d:0] epsilon_%d; // syndrome polynom %d\n",(bitSymbol-1), ii, ii); } } if (syndromeLength > 2047) { fprintf(OutFileDecodeErasure, " output [11:0] numErasure; // erasure amount\n"); }else{ if (syndromeLength > 1023) { fprintf(OutFileDecodeErasure, " output [10:0] numErasure; // erasure amount\n"); }else{ if (syndromeLength > 511) { fprintf(OutFileDecodeErasure, " output [9:0] numErasure; // erasure amount\n"); }else{ if (syndromeLength > 255) { fprintf(OutFileDecodeErasure, " output [8:0] numErasure; // erasure amount\n"); }else{ if (syndromeLength > 127) { fprintf(OutFileDecodeErasure, " output [7:0] numErasure; // erasure amount\n"); }else{ if (syndromeLength > 63) { fprintf(OutFileDecodeErasure, " output [6:0] numErasure; // erasure amount\n"); }else{ if (syndromeLength > 31) { fprintf(OutFileDecodeErasure, " output [5:0] numErasure; // erasure amount\n"); }else{ if (syndromeLength > 15) { fprintf(OutFileDecodeErasure, " output [4:0] numErasure; // erasure amount\n"); }else{ if (syndromeLength > 7) { fprintf(OutFileDecodeErasure, " output [3:0] numErasure; // erasure amount\n"); }else{ if (syndromeLength > 3) { fprintf(OutFileDecodeErasure, " output [2:0] numErasure; // erasure amount\n"); }else{ fprintf(OutFileDecodeErasure, " output [1:0] numErasure; // erasure amount\n"); } } } } } } } } } } if (passFailFlag == 1){ fprintf(OutFileDecodeErasure, " output fail; // decoder failure signal\n"); } fprintf(OutFileDecodeErasure, " output done; // done signal\n"); //--------------------------------------------------------------- // initialize ttTab //--------------------------------------------------------------- ttTab[0] = 1; for (ii=1;ii<bitSymbol;ii++){ ttTab[ii] = 0; } //--------------------------------------------------------------- // initialize bbTab //--------------------------------------------------------------- bbTab[0] = 0; bbTab[1] = 1; for (ii=2;ii<bitSymbol;ii++){ bbTab[ii] = 0; } int kk; //--------------------------------------------------------------- //--------------------------------------------------------------- for (ii=1;ii < (param1+1);ii++){ RsGfMultiplier(ppTab, ttTab, bbTab, PrimPoly, bitSymbol); for (kk=0; kk<bitSymbol;kk++){ ttTab[kk] = ppTab[kk]; } } initValue = 0; for (kk=0; kk<bitSymbol;kk++){ initValue = initValue + ttTab[kk] * powerTab[kk]; } fprintf(OutFileDecodeErasure, " //------------------------------------------------------------------\n"); fprintf(OutFileDecodeErasure, " // - parameters\n"); fprintf(OutFileDecodeErasure, " //------------------------------------------------------------------\n"); // fprintf(OutFileDecodeErasure, " parameter erasurePower = %d'd1;\n", bitSymbol); fprintf(OutFileDecodeErasure, " parameter erasureInitialPower = %d'd%d;\n", bitSymbol, initValue); fprintf(OutFileDecodeErasure, "\n\n\n"); //------------------------------------------------------------------------ // + count //- Counter //------------------------------------------------------------------------ fprintf(OutFileDecodeErasure, " //------------------------------------------------------------------------\n"); fprintf(OutFileDecodeErasure, " // + count\n"); fprintf(OutFileDecodeErasure, " //- Counter\n"); fprintf(OutFileDecodeErasure, " //------------------------------------------------------------------------\n"); // fprintf(OutFileDecodeErasure, " reg [%d:0] count;\n",bitSymbol); fprintf(OutFileDecodeErasure, " reg [%d:0] count;\n",countSize-1); fprintf(OutFileDecodeErasure, " always @(posedge CLK or negedge RESET) begin\n"); fprintf(OutFileDecodeErasure, " if (~RESET) begin\n"); // fprintf(OutFileDecodeErasure, " count [%d:0] <= %d'd0;\n",bitSymbol,bitSymbol+1); fprintf(OutFileDecodeErasure, " count [%d:0] <= %d'd0;\n",countSize-1,countSize); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " else if (enable == 1'b1) begin\n"); fprintf(OutFileDecodeErasure, " if (sync == 1'b1) begin\n"); // fprintf(OutFileDecodeErasure, " count[%d:0] <= %d'd1;\n",bitSymbol,bitSymbol+1); fprintf(OutFileDecodeErasure, " count[%d:0] <= %d'd1;\n",countSize-1,countSize); fprintf(OutFileDecodeErasure, " end\n"); // fprintf(OutFileDecodeErasure, " else if ( (count[%d:0] ==%d'd0) || (count[%d:0] ==%d'd%d)) begin\n",bitSymbol,bitSymbol+1,bitSymbol,bitSymbol+1, TotalSize); fprintf(OutFileDecodeErasure, " else if ( (count[%d:0] ==%d'd0) || (count[%d:0] ==%d'd%d)) begin\n",countSize-1,countSize,countSize-1,countSize, TotalSize); // fprintf(OutFileDecodeErasure, " count[%d:0] <= %d'd0;\n",bitSymbol,bitSymbol+1); fprintf(OutFileDecodeErasure, " count[%d:0] <= %d'd0;\n",countSize-1,countSize); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " else begin\n"); // fprintf(OutFileDecodeErasure, " count[%d:0] <= count[%d:0] + %d'd1;\n",bitSymbol,bitSymbol,bitSymbol+1); fprintf(OutFileDecodeErasure, " count[%d:0] <= count[%d:0] + %d'd1;\n",countSize-1,countSize-1,countSize); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, "\n\n\n"); //------------------------------------------------------------------------ // + done //------------------------------------------------------------------------ fprintf(OutFileDecodeErasure, " //------------------------------------------------------------------------\n"); fprintf(OutFileDecodeErasure, " // + done\n"); fprintf(OutFileDecodeErasure, " //------------------------------------------------------------------------\n"); fprintf(OutFileDecodeErasure, " reg done;\n"); fprintf(OutFileDecodeErasure, " always @(count) begin\n"); // fprintf(OutFileDecodeErasure, " if (count ==%d'd%d) begin\n",bitSymbol+1,TotalSize); fprintf(OutFileDecodeErasure, " if (count ==%d'd%d) begin\n",countSize,TotalSize); fprintf(OutFileDecodeErasure, " done = 1'b1;\n"); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " else begin\n"); fprintf(OutFileDecodeErasure, " done = 1'b0;\n"); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, "\n\n"); //------------------------------------------------------------------------ // + erasureCount //- Erasure Counter //------------------------------------------------------------------------ fprintf(OutFileDecodeErasure, " //------------------------------------------------------------------------\n"); fprintf(OutFileDecodeErasure, " // + erasureCount\n"); fprintf(OutFileDecodeErasure, " //- Erasure Counter\n"); fprintf(OutFileDecodeErasure, " //------------------------------------------------------------------------\n"); // fprintf(OutFileDecodeErasure, " reg [%d:0] erasureCount;\n",bitSymbol); fprintf(OutFileDecodeErasure, " reg [%d:0] erasureCount;\n",countSize-1); fprintf(OutFileDecodeErasure, " always @(posedge CLK or negedge RESET) begin\n"); fprintf(OutFileDecodeErasure, " if (~RESET) begin\n"); // fprintf(OutFileDecodeErasure, " erasureCount [%d:0] <= %d'd0;\n",bitSymbol,bitSymbol+1); fprintf(OutFileDecodeErasure, " erasureCount [%d:0] <= %d'd0;\n",countSize-1,countSize); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " else if (enable == 1'b1) begin\n"); fprintf(OutFileDecodeErasure, " if (sync == 1'b1) begin\n"); fprintf(OutFileDecodeErasure, " if (erasureIn == 1'b1) begin\n"); // fprintf(OutFileDecodeErasure, " erasureCount [%d:0] <= %d'd1;\n",bitSymbol,bitSymbol+1); fprintf(OutFileDecodeErasure, " erasureCount [%d:0] <= %d'd1;\n",countSize-1,countSize); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " else begin\n"); // fprintf(OutFileDecodeErasure, " erasureCount [%d:0] <= %d'd0;\n",bitSymbol,bitSymbol+1); fprintf(OutFileDecodeErasure, " erasureCount [%d:0] <= %d'd0;\n",countSize-1,countSize); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " else if (erasureIn == 1'b1) begin\n"); // fprintf(OutFileDecodeErasure, " erasureCount [%d:0] <= erasureCount [%d:0] + %d'd1;\n",bitSymbol,bitSymbol,bitSymbol+1); fprintf(OutFileDecodeErasure, " erasureCount [%d:0] <= erasureCount [%d:0] + %d'd1;\n",countSize-1,countSize-1,countSize); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, "\n\n"); //------------------------------------------------------------------------ // + fail //- If Erasure amount > CHECK_LEN -> fail is ON //------------------------------------------------------------------------ if (passFailFlag == 1){ fprintf(OutFileDecodeErasure, " //------------------------------------------------------------------------\n"); fprintf(OutFileDecodeErasure, " // + fail\n"); fprintf(OutFileDecodeErasure, " //- If Erasure amount > %d -> fail is ON\n", syndromeLength); fprintf(OutFileDecodeErasure, " //------------------------------------------------------------------------\n"); fprintf(OutFileDecodeErasure, " reg fail;\n"); fprintf(OutFileDecodeErasure, " always @(erasureCount) begin\n"); // fprintf(OutFileDecodeErasure, " if (erasureCount [%d:0]> %d'd%d) begin\n",bitSymbol,bitSymbol+1,syndromeLength); fprintf(OutFileDecodeErasure, " if (erasureCount [%d:0]> %d'd%d) begin\n",countSize-1,countSize,syndromeLength); fprintf(OutFileDecodeErasure, " fail = 1'b1;\n"); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " else begin\n"); fprintf(OutFileDecodeErasure, " fail = 1'b0;\n"); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, "\n\n"); } //------------------------------------------------------------------------ // Erasure Polynominal Generator //------------------------------------------------------------------------ fprintf(OutFileDecodeErasure, " //------------------------------------------------------------------------\n"); fprintf(OutFileDecodeErasure, " // Erasure Polynominal Generator\n"); fprintf(OutFileDecodeErasure, " //------------------------------------------------------------------------\n"); fprintf(OutFileDecodeErasure, " reg [%d:0] powerReg;\n",bitSymbol-1); fprintf(OutFileDecodeErasure, " wire [%d:0] powerNew;\n",bitSymbol-1); fprintf(OutFileDecodeErasure, " wire [%d:0] powerInitialNew;\n",bitSymbol-1); fprintf(OutFileDecodeErasure, "\n"); //------------------------------------------------------------------------ // RsDecodeMakeMultErasure Emulation //------------------------------------------------------------------------ ttTab[0] = 1; for (ii=1;ii<bitSymbol;ii++){ ttTab[ii] = 0; } bbTab[0] = 0; bbTab[1] = 1; for (ii=2;ii<bitSymbol;ii++){ bbTab[ii] = 0; } //------------------------------------------------------------------------ // ppTab = ttTab * bbTab //------------------------------------------------------------------------ RsGfMultiplier(ppTab, ttTab, bbTab, PrimPoly, bitSymbol); //------------------------------------------------------------------------ // reassign ttTab //------------------------------------------------------------------------ for (kk=0; kk<bitSymbol;kk++){ ttTab[kk] = ppTab[kk]; } //------------------------------------------------------------------------ //------------------------------------------------------------------------ for (Pidx=0; Pidx<bitSymbol; Pidx++){ fprintf(OutFileDecodeErasure, " assign powerInitialNew [%d] =",Pidx); init = 0; for (idx2=0; idx2<bitSymbol;idx2++){ bidon [idx2] = 0; } for (idx1=0; idx1<mmTabSize;idx1++){ tempNum = PrefTab [Pidx*mmTabSize+idx1]; if (tempNum == 1) { //------------------------------------------------------------------------ // search //------------------------------------------------------------------------ for (idx2=0; idx2<bitSymbol;idx2++){ tempNum = MrefTab[idx1*bitSymbol+idx2]; if ((tempNum > 0) && (ttTab[tempNum-1] == 1)) { if (bidon [idx2] == 0) { bidon [idx2] = 1; } else { bidon [idx2] = 0; } } } } } //------------------------------------------------------------------------ // printf //------------------------------------------------------------------------ for (idx2=0; idx2<bitSymbol; idx2++){ if (bidon[idx2] == 1) { if (init == 0) { fprintf(OutFileDecodeErasure, " erasureInitialPower[%d]", idx2); init = 1; } else { fprintf(OutFileDecodeErasure, " ^ erasureInitialPower[%d]", idx2); } } } fprintf(OutFileDecodeErasure, ";\n"); } for (Pidx=0; Pidx<bitSymbol; Pidx++){ fprintf(OutFileDecodeErasure, " assign powerNew [%d] =",Pidx); init = 0; for (idx2=0; idx2<bitSymbol;idx2++){ bidon [idx2] = 0; } for (idx1=0; idx1<mmTabSize;idx1++){ tempNum = PrefTab [Pidx*mmTabSize+idx1]; if (tempNum == 1) { //------------------------------------------------------------------------ // search //------------------------------------------------------------------------ for (idx2=0; idx2<bitSymbol;idx2++){ tempNum = MrefTab[idx1*bitSymbol+idx2]; if ((tempNum > 0) && (ttTab[tempNum-1] == 1)) { if (bidon [idx2] == 0) { bidon [idx2] = 1; } else { bidon [idx2] = 0; } } } } } //------------------------------------------------------------------------ // printf //------------------------------------------------------------------------ for (idx2=0; idx2<bitSymbol; idx2++){ if (bidon[idx2] == 1) { if (init == 0) { fprintf(OutFileDecodeErasure, " powerReg[%d]", idx2); init = 1; } else { fprintf(OutFileDecodeErasure, " ^ powerReg[%d]", idx2); } } } fprintf(OutFileDecodeErasure, ";\n"); } fprintf(OutFileDecodeErasure, "\n\n"); //------------------------------------------------------------------ // + powerReg //------------------------------------------------------------------ fprintf(OutFileDecodeErasure, " //------------------------------------------------------------------\n"); fprintf(OutFileDecodeErasure, " // + powerReg\n"); fprintf(OutFileDecodeErasure, " //------------------------------------------------------------------\n"); fprintf(OutFileDecodeErasure, " always @(posedge CLK or negedge RESET) begin\n"); fprintf(OutFileDecodeErasure, " if (~RESET) begin\n"); fprintf(OutFileDecodeErasure, " powerReg [%d:0] <= %d'd0;\n", bitSymbol-1, bitSymbol); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " else if (enable == 1'b1) begin\n"); fprintf(OutFileDecodeErasure, " if (sync == 1'b1) begin\n"); fprintf(OutFileDecodeErasure, " powerReg[%d:0] <= powerInitialNew[%d:0];\n", bitSymbol-1, bitSymbol-1); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " else begin\n"); fprintf(OutFileDecodeErasure, " powerReg[%d:0] <= powerNew[%d:0];\n", bitSymbol-1, bitSymbol-1); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, "\n\n"); //------------------------------------------------------------------------ // + product_0,..., product_xxx //- Erasure Polynominal Generator //------------------------------------------------------------------------ fprintf(OutFileDecodeErasure, " //------------------------------------------------------------------------\n"); fprintf(OutFileDecodeErasure, " // + product_0,..., product_%d\n", syndromeLength); fprintf(OutFileDecodeErasure, " //- Erasure Polynominal Generator\n"); fprintf(OutFileDecodeErasure, " //------------------------------------------------------------------------\n"); for (ii=0;ii<(syndromeLength+1);ii++){ fprintf(OutFileDecodeErasure, " wire [%d:0] product_%d;\n", bitSymbol-1, ii); } fprintf(OutFileDecodeErasure, "\n"); for (ii=0;ii<(syndromeLength+1);ii++){ fprintf(OutFileDecodeErasure, " reg [%d:0] epsilonReg_%d;\n", bitSymbol-1, ii); } fprintf(OutFileDecodeErasure, "\n\n"); for (ii=0;ii<(syndromeLength+1);ii++){ fprintf(OutFileDecodeErasure, " RsDecodeMult RsDecodeMult_%d (.A(powerReg[%d:0]), .B(epsilonReg_%d[%d:0]), .P(product_%d[%d:0]));\n", ii, bitSymbol-1, ii, bitSymbol-1, ii, bitSymbol-1); } fprintf(OutFileDecodeErasure, "\n\n\n"); //------------------------------------------------------------------------ // + epsilonReg_0,..., epsilonReg_xxx //------------------------------------------------------------------------ fprintf(OutFileDecodeErasure, " //------------------------------------------------------------------------\n"); fprintf(OutFileDecodeErasure, " // + epsilonReg_0,..., epsilonReg_%d\n", syndromeLength-1); fprintf(OutFileDecodeErasure, " //------------------------------------------------------------------------\n"); fprintf(OutFileDecodeErasure, " always @(posedge CLK or negedge RESET) begin\n"); fprintf(OutFileDecodeErasure, " if (~RESET) begin\n"); for (ii=0;ii<(syndromeLength+1);ii++){ if (ii < 10) { fprintf(OutFileDecodeErasure, " epsilonReg_%d [%d:0] <= %d'd0;\n", ii,bitSymbol-1,bitSymbol); }else{ fprintf(OutFileDecodeErasure, " epsilonReg_%d [%d:0] <= %d'd0;\n", ii,bitSymbol-1,bitSymbol); } } fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " else if (enable == 1'b1) begin\n"); fprintf(OutFileDecodeErasure, " if (sync == 1'b1) begin\n"); fprintf(OutFileDecodeErasure, " if (erasureIn == 1'b1) begin\n"); fprintf(OutFileDecodeErasure, " epsilonReg_0 [%d:0] <= erasureInitialPower[%d:0];\n",bitSymbol-1,bitSymbol-1); fprintf(OutFileDecodeErasure, " epsilonReg_1 [%d:0] <= %d'd1;\n",bitSymbol-1,bitSymbol); for (ii=2;ii<(syndromeLength+1);ii++){ if (ii < 10) { fprintf(OutFileDecodeErasure, " epsilonReg_%d [%d:0] <= %d'd0;\n", ii,bitSymbol-1,bitSymbol); }else{ fprintf(OutFileDecodeErasure, " epsilonReg_%d [%d:0] <= %d'd0;\n", ii,bitSymbol-1,bitSymbol); } } fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " else begin\n"); fprintf(OutFileDecodeErasure, " epsilonReg_0 [%d:0] <= %d'd1;\n",bitSymbol-1,bitSymbol); for (ii=1;ii<(syndromeLength+1);ii++){ if (ii < 10) { fprintf(OutFileDecodeErasure, " epsilonReg_%d [%d:0] <= %d'd0;\n", ii,bitSymbol-1,bitSymbol); }else{ fprintf(OutFileDecodeErasure, " epsilonReg_%d [%d:0] <= %d'd0;\n", ii,bitSymbol-1,bitSymbol); } } fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " else if (erasureIn == 1'b1) begin\n"); fprintf(OutFileDecodeErasure, " epsilonReg_0 [%d:0] <= product_0[%d:0];\n",bitSymbol-1,bitSymbol-1); for (ii=1;ii<(syndromeLength+1);ii++){ if (ii < 10){ fprintf(OutFileDecodeErasure, " epsilonReg_%d [%d:0] <= epsilonReg_%d [%d:0] ^ product_%d[%d:0];\n", ii,bitSymbol-1, (ii-1),bitSymbol-1, ii,bitSymbol-1); }else{ fprintf(OutFileDecodeErasure, " epsilonReg_%d [%d:0] <= epsilonReg_%d [%d:0] ^ product_%d[%d:0];\n", ii,bitSymbol-1, (ii-1),bitSymbol-1, ii,bitSymbol-1); } } fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, " end\n"); fprintf(OutFileDecodeErasure, "\n\n\n"); //------------------------------------------------------------------------ //- Output Ports //------------------------------------------------------------------------ fprintf(OutFileDecodeErasure, " //------------------------------------------------------------------------\n"); fprintf(OutFileDecodeErasure, " //- Output Ports\n"); fprintf(OutFileDecodeErasure, " //------------------------------------------------------------------------\n"); for (ii=0;ii<(syndromeLength+1);ii++){ if (ii < 10){ fprintf(OutFileDecodeErasure, " assign epsilon_%d [%d:0] = epsilonReg_%d[%d:0];\n", ii,bitSymbol-1, ii,bitSymbol-1); }else{ fprintf(OutFileDecodeErasure, " assign epsilon_%d [%d:0] = epsilonReg_%d[%d:0];\n", ii,bitSymbol-1, ii,bitSymbol-1); } } fprintf(OutFileDecodeErasure, "\n"); if (syndromeLength > 2047) { fprintf(OutFileDecodeErasure, " assign numErasure = erasureCount[11:0];\n"); }else{ if (syndromeLength > 1023) { fprintf(OutFileDecodeErasure, " assign numErasure = erasureCount[10:0];\n"); }else{ if (syndromeLength > 511) { fprintf(OutFileDecodeErasure, " assign numErasure = erasureCount[9:0];\n"); }else{ if (syndromeLength > 255) { fprintf(OutFileDecodeErasure, " assign numErasure = erasureCount[8:0];\n"); }else{ if (syndromeLength > 127) { fprintf(OutFileDecodeErasure, " assign numErasure = erasureCount[7:0];\n"); }else{ if (syndromeLength > 63) { fprintf(OutFileDecodeErasure, " assign numErasure = erasureCount[6:0];\n"); }else{ if (syndromeLength > 31){ fprintf(OutFileDecodeErasure, " assign numErasure = erasureCount[5:0];\n"); }else{ if (syndromeLength > 15){ fprintf(OutFileDecodeErasure, " assign numErasure = erasureCount[4:0];\n"); }else{ if (syndromeLength > 7){ fprintf(OutFileDecodeErasure, " assign numErasure = erasureCount[3:0];\n"); }else{ if (syndromeLength > 3){ fprintf(OutFileDecodeErasure, " assign numErasure = erasureCount[2:0];\n"); }else{ fprintf(OutFileDecodeErasure, " assign numErasure = erasureCount[1:0];\n"); } } } } } } } } } } fprintf(OutFileDecodeErasure, "\n"); fprintf(OutFileDecodeErasure, "endmodule\n"); //--------------------------------------------------------------- // close file //--------------------------------------------------------------- fclose(OutFileDecodeErasure); //--------------------------------------------------------------- // Free memory //--------------------------------------------------------------- delete[] ttTab; delete[] bbTab; delete[] ppTab; delete[] powerTab; delete[] bidon; //--------------------------------------------------------------- // automatically convert Dos mode To Unix mode //--------------------------------------------------------------- char ch; char temp[MAX_PATH]="\0"; //Open the file for reading in binarymode. ifstream fp_read(strRsDecodeErasure, ios_base::in | ios_base::binary); sprintf(temp, "%s.temp", strRsDecodeErasure); //Create a temporary file for writing in the binary mode. This //file will be created in the same directory as the input file. ofstream fp_write(temp, ios_base::out | ios_base::trunc | ios_base::binary); while(fp_read.eof() != true) { fp_read.get(ch); //Check for CR (carriage return) if((int)ch == 0x0D) continue; if (!fp_read.eof())fp_write.put(ch); } fp_read.close(); fp_write.close(); //Delete the existing input file. remove(strRsDecodeErasure); //Rename the temporary file to the input file. rename(temp, strRsDecodeErasure); //Delete the temporary file. remove(temp); //--------------------------------------------------------------- // clean string //--------------------------------------------------------------- free(strRsDecodeErasure); }