URL
https://opencores.org/ocsvn/reed_solomon_codec_generator/reed_solomon_codec_generator/trunk
Subversion Repositories reed_solomon_codec_generator
[/] [reed_solomon_codec_generator/] [trunk/] [source/] [RsDecodePolymul.cpp] - Rev 10
Go to most recent revision | Compare with Previous | Blame | View Log
//=================================================================== // Module Name : RsDecodePolymul // File Name : RsDecodePolymul.cpp // Function : RTL Decoder polymul 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 *OutFilePolymul; void RsDecodePolymul(int DataSize, int TotalSize, int PrimPoly, int bitSymbol, int pathFlag, int lengthPath, char *rootFolderPath) { //--------------------------------------------------------------- // c++ variables //--------------------------------------------------------------- int syndromeLength; int ii; int countSize; char *strRsDecodePolymul; syndromeLength = TotalSize - DataSize; //--------------------------------------------------------------- // open file //--------------------------------------------------------------- strRsDecodePolymul = (char *)calloc(lengthPath + 24, sizeof(char)); if (pathFlag == 0) { strRsDecodePolymul[0] = '.'; }else{ for(ii=0; ii<lengthPath; ii++){ strRsDecodePolymul[ii] = rootFolderPath[ii]; } } strcat(strRsDecodePolymul, "/rtl/RsDecodePolymul.v"); OutFilePolymul = fopen(strRsDecodePolymul,"w"); //--------------------------------------------------------------- // Ports Declaration //--------------------------------------------------------------- fprintf(OutFilePolymul, "//===================================================================\n"); fprintf(OutFilePolymul, "// Module Name : RsDecodePolymul\n"); fprintf(OutFilePolymul, "// File Name : RsDecodePolymul.v\n"); fprintf(OutFilePolymul, "// Function : Rs Decoder polymul calculation Module\n"); fprintf(OutFilePolymul, "// \n"); fprintf(OutFilePolymul, "// Revision History:\n"); fprintf(OutFilePolymul, "// Date By Version Change Description\n"); fprintf(OutFilePolymul, "//===================================================================\n"); fprintf(OutFilePolymul, "// 2009/02/03 Gael Sapience 1.0 Original\n"); fprintf(OutFilePolymul, "//\n"); fprintf(OutFilePolymul, "//===================================================================\n"); fprintf(OutFilePolymul, "// (C) COPYRIGHT 2009 SYSTEM LSI CO., Ltd.\n"); fprintf(OutFilePolymul, "//\n\n\n"); fprintf(OutFilePolymul, "module RsDecodePolymul(\n"); fprintf(OutFilePolymul, " CLK, // system clock\n"); fprintf(OutFilePolymul, " RESET, // system reset\n"); fprintf(OutFilePolymul, " enable, // enable signal\n"); fprintf(OutFilePolymul, " sync, // sync signal\n"); for(ii=0; ii<syndromeLength; ii++){ if (ii < 10) { fprintf(OutFilePolymul, " syndromeIn_%d, // syndrome polynom %d\n", ii, ii); }else{ fprintf(OutFilePolymul, " syndromeIn_%d, // syndrome polynom %d\n", ii, ii); } } for(ii=0; ii<(syndromeLength+1); ii++){ if (ii < 10) { fprintf(OutFilePolymul, " epsilon_%d, // epsilon polynom %d\n", ii, ii); }else{ fprintf(OutFilePolymul, " epsilon_%d, // epsilon polynom %d\n", ii, ii); } } for(ii=0; ii<syndromeLength; ii++){ if (ii < 10) { fprintf(OutFilePolymul, " syndromeOut_%d, // modified syndrome polynom %d\n", ii, ii); }else{ fprintf(OutFilePolymul, " syndromeOut_%d, // modified syndrome polynom %d\n", ii, ii); } } fprintf(OutFilePolymul, " done // done signal\n"); fprintf(OutFilePolymul, ");\n\n\n"); fprintf(OutFilePolymul, " input CLK; // system clock\n"); fprintf(OutFilePolymul, " input RESET; // system reset\n"); fprintf(OutFilePolymul, " input enable; // enable signal\n"); fprintf(OutFilePolymul, " input sync; // sync signal\n"); for(ii=0; ii<syndromeLength; ii++){ if (ii < 10) { fprintf(OutFilePolymul, " input [%d:0] syndromeIn_%d; // syndrome polynom %d\n",bitSymbol-1, ii, ii); }else{ fprintf(OutFilePolymul, " input [%d:0] syndromeIn_%d; // syndrome polynom %d\n",bitSymbol-1, ii, ii); } } for(ii=0; ii<(syndromeLength+1); ii++){ if (ii < 10) { fprintf(OutFilePolymul, " input [%d:0] epsilon_%d; // epsilon polynom %d\n",bitSymbol-1, ii, ii); }else{ fprintf(OutFilePolymul, " input [%d:0] epsilon_%d; // epsilon polynom %d\n",bitSymbol-1, ii, ii); } } fprintf(OutFilePolymul, "\n"); for(ii=0; ii<syndromeLength; ii++){ if (ii < 10) { fprintf(OutFilePolymul, " output [%d:0] syndromeOut_%d; // modified syndrome polynom %d\n",bitSymbol-1, ii, ii); }else{ fprintf(OutFilePolymul, " output [%d:0] syndromeOut_%d; // modified syndrome polynom %d\n",bitSymbol-1, ii, ii); } } fprintf(OutFilePolymul, " output done; // done signal\n\n\n"); fprintf(OutFilePolymul, "\n\n\n"); //------------------------------------------------------------------------ // + count //- Counter //------------------------------------------------------------------------ countSize = 0; if ((syndromeLength+1) > 2047) { countSize = 12; } else{ if ((syndromeLength+1) > 1023) { countSize = 11; } else{ if ((syndromeLength+1) > 511) { countSize = 10; }else{ if ((syndromeLength+1) > 255) { countSize = 9; }else{ if ((syndromeLength+1) > 127) { countSize = 8; }else{ if ((syndromeLength+1) > 63) { countSize = 7; }else{ if ((syndromeLength+1) > 31) { countSize = 6; }else{ if ((syndromeLength+1) > 15) { countSize = 5; }else{ if ((syndromeLength+1) > 7) { countSize = 4; }else{ if ((syndromeLength+1) > 3) { countSize = 3; }else{ countSize = 2; } } } } } } } } } } fprintf(OutFilePolymul, " //------------------------------------------------------------------------\n"); fprintf(OutFilePolymul, " // + count\n"); fprintf(OutFilePolymul, " //- Counter\n"); fprintf(OutFilePolymul, " //------------------------------------------------------------------------\n"); // fprintf(OutFilePolymul, " reg [%d:0] count;\n",bitSymbol); fprintf(OutFilePolymul, " reg [%d:0] count;\n",countSize -1); fprintf(OutFilePolymul, " always @(posedge CLK or negedge RESET) begin\n"); fprintf(OutFilePolymul, " if (~RESET) begin\n"); // fprintf(OutFilePolymul, " count [%d:0] <= %d'd0;\n",bitSymbol,bitSymbol+1); fprintf(OutFilePolymul, " count [%d:0] <= %d'd0;\n",countSize-1,countSize); fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, " else if (enable == 1'b1) begin\n"); fprintf(OutFilePolymul, " if (sync == 1'b1) begin\n"); // fprintf(OutFilePolymul, " if (count[%d:0]==%d'd0) begin\n",bitSymbol,bitSymbol+1); /* fprintf(OutFilePolymul, " if (count[%d:0]==%d'd0) begin\n",countSize-1,countSize); // fprintf(OutFilePolymul, " count[%d:0] <= %d'd1;\n",bitSymbol,bitSymbol+1); fprintf(OutFilePolymul, " count[%d:0] <= %d'd1;\n",countSize-1,countSize); fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, " else begin\n"); // fprintf(OutFilePolymul, " count[%d:0] <= %d'd0;\n",bitSymbol,bitSymbol+1); fprintf(OutFilePolymul, " count[%d:0] <= %d'd0;\n",countSize-1,countSize); fprintf(OutFilePolymul, " end\n");*/ fprintf(OutFilePolymul, " count[%d:0] <= %d'd1;\n",countSize-1,countSize); fprintf(OutFilePolymul, " end\n"); // fprintf(OutFilePolymul, " else if ((count[%d:0] ==%d'd0) || (count[%d:0] ==%d'd%d)) begin\n",bitSymbol,bitSymbol+1,bitSymbol,bitSymbol+1, (syndromeLength+1)); fprintf(OutFilePolymul, " else if ((count[%d:0] ==%d'd0) || (count[%d:0] ==%d'd%d)) begin\n",countSize-1,countSize,countSize-1,countSize, (syndromeLength+1)); // fprintf(OutFilePolymul, " count[%d:0] <= %d'd0;\n",bitSymbol,bitSymbol+1); fprintf(OutFilePolymul, " count[%d:0] <= %d'd0;\n",countSize-1,countSize); fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, " else begin\n"); // fprintf(OutFilePolymul, " count[%d:0] <= count[%d:0] + %d'd1;\n",bitSymbol,bitSymbol,bitSymbol+1); fprintf(OutFilePolymul, " count[%d:0] <= count[%d:0] + %d'd1;\n",countSize-1,countSize-1,countSize); fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, "\n\n"); //------------------------------------------------------------------------ // + done //------------------------------------------------------------------------ fprintf(OutFilePolymul, " //------------------------------------------------------------------------\n"); fprintf(OutFilePolymul, " // + done\n"); fprintf(OutFilePolymul, " //------------------------------------------------------------------------\n"); fprintf(OutFilePolymul, " reg done;\n"); fprintf(OutFilePolymul, " always @(count) begin\n"); // fprintf(OutFilePolymul, " if (count[%d:0] == %d'd%d) begin\n",bitSymbol,bitSymbol+1,(syndromeLength+1)); fprintf(OutFilePolymul, " if (count[%d:0] == %d'd%d) begin\n",countSize-1,countSize,(syndromeLength+1)); fprintf(OutFilePolymul, " done = 1'b1;\n"); fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, " else begin\n"); fprintf(OutFilePolymul, " done = 1'b0;\n"); fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, "\n\n"); //------------------------------------------------------------------------ // + syndromeReg_0,..., syndromeReg_xxx //------------------------------------------------------------------------ fprintf(OutFilePolymul, " //------------------------------------------------------------------------\n"); fprintf(OutFilePolymul, " // + syndromeReg_0,..., syndromeReg_%d\n", syndromeLength-1); fprintf(OutFilePolymul, " //------------------------------------------------------------------------\n"); for(ii=0; ii<syndromeLength; ii++){ fprintf(OutFilePolymul, " reg [%d:0] syndromeReg_%d;\n",bitSymbol-1,ii); } fprintf(OutFilePolymul, "\n\n"); fprintf(OutFilePolymul, " always @(posedge CLK or negedge RESET) begin\n"); fprintf(OutFilePolymul, " if (~RESET) begin\n"); for(ii=0; ii<syndromeLength; ii++){ if (ii < 10) { fprintf(OutFilePolymul, " syndromeReg_%d [%d:0] <= %d'd0;\n",ii,bitSymbol-1,bitSymbol); }else{ fprintf(OutFilePolymul, " syndromeReg_%d [%d:0] <= %d'd0;\n",ii,bitSymbol-1,bitSymbol); } } fprintf(OutFilePolymul, " end \n"); fprintf(OutFilePolymul, " else if ((enable == 1'b1) && (sync == 1'b1)) begin\n"); for(ii=0; ii<syndromeLength; ii++){ if (ii < 10) { fprintf(OutFilePolymul, " syndromeReg_%d [%d:0] <= syndromeIn_%d [%d:0];\n",ii,bitSymbol-1,ii,bitSymbol-1); }else{ fprintf(OutFilePolymul, " syndromeReg_%d [%d:0] <= syndromeIn_%d [%d:0];\n",ii,bitSymbol-1,ii,bitSymbol-1); } } fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, " end\n"); //------------------------------------------------------------------------ // + epsilonReg_0,..., epsilonReg_xxx //------------------------------------------------------------------------ fprintf(OutFilePolymul, " //------------------------------------------------------------------------\n"); fprintf(OutFilePolymul, " // + epsilonReg_0,..., epsilonReg_%d\n", syndromeLength); fprintf(OutFilePolymul, " //------------------------------------------------------------------------\n"); for(ii=0; ii<(syndromeLength+1); ii++){ fprintf(OutFilePolymul, " reg [%d:0] epsilonReg_%d;\n",bitSymbol-1,ii); } fprintf(OutFilePolymul, "\n"); fprintf(OutFilePolymul, " always @(posedge CLK or negedge RESET) begin\n"); fprintf(OutFilePolymul, " if (~RESET) begin\n"); for(ii=0; ii<(syndromeLength+1); ii++){ if (ii < 10) { fprintf(OutFilePolymul, " epsilonReg_%d [%d:0] <= %d'd0;\n",ii,bitSymbol-1,bitSymbol); }else{ fprintf(OutFilePolymul, " epsilonReg_%d [%d:0] <= %d'd0;\n",ii,bitSymbol-1,bitSymbol); } } fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, " else if (enable == 1'b1) begin\n"); fprintf(OutFilePolymul, " if (sync == 1'b1) begin\n"); fprintf(OutFilePolymul, " epsilonReg_0 [%d:0] <= %d'd0;\n",bitSymbol-1,bitSymbol); for(ii=1; ii<(syndromeLength+1); ii++){ if (ii < 10) { fprintf(OutFilePolymul, " epsilonReg_%d [%d:0] <= epsilon_%d[%d:0];\n",ii,bitSymbol-1,(ii-1),bitSymbol-1); }else{ fprintf(OutFilePolymul, " epsilonReg_%d [%d:0] <= epsilon_%d[%d:0];\n",ii,bitSymbol-1,(ii-1),bitSymbol-1); } } fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, " else begin\n"); fprintf(OutFilePolymul, " epsilonReg_0 [%d:0] <= %d'd0;\n",bitSymbol-1,bitSymbol); for(ii=1; ii<(syndromeLength+1); ii++){ if (ii < 10) { fprintf(OutFilePolymul, " epsilonReg_%d [%d:0] <= epsilonReg_%d[%d:0];\n",ii,bitSymbol-1,(ii-1),bitSymbol-1); }else{ fprintf(OutFilePolymul, " epsilonReg_%d [%d:0] <= epsilonReg_%d[%d:0];\n",ii,bitSymbol-1,(ii-1),bitSymbol-1); } } fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, "\n\n"); //------------------------------------------------------------------------ // + epsilonMsb //------------------------------------------------------------------------ fprintf(OutFilePolymul, " //------------------------------------------------------------------------\n"); fprintf(OutFilePolymul, " // + epsilonMsb\n"); fprintf(OutFilePolymul, " //------------------------------------------------------------------------\n"); fprintf(OutFilePolymul, " reg [%d:0] epsilonMsb;\n",bitSymbol-1); fprintf(OutFilePolymul, "\n"); fprintf(OutFilePolymul, " always @(sync"); fprintf(OutFilePolymul, " or epsilon_%d",syndromeLength); fprintf(OutFilePolymul, " or epsilonReg_%d",syndromeLength); fprintf(OutFilePolymul, " ) begin\n"); fprintf(OutFilePolymul, " if (sync == 1'b1) begin\n"); fprintf(OutFilePolymul, " epsilonMsb [%d:0] = epsilon_%d [%d:0];\n",bitSymbol-1, syndromeLength,bitSymbol-1); fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, " else begin\n"); fprintf(OutFilePolymul, " epsilonMsb [%d:0] = epsilonReg_%d [%d:0];\n",bitSymbol-1, syndromeLength,bitSymbol-1); fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, "\n\n"); //------------------------------------------------------------------------ // + product_0,..., product_xxx //------------------------------------------------------------------------ fprintf(OutFilePolymul, " //------------------------------------------------------------------------\n"); fprintf(OutFilePolymul, " // + product_0,..., product_%d\n", syndromeLength-1); fprintf(OutFilePolymul, " //------------------------------------------------------------------------\n"); for(ii=0; ii<(syndromeLength); ii++){ fprintf(OutFilePolymul, " wire [%d:0] product_%d;\n",bitSymbol-1, ii); } fprintf(OutFilePolymul, "\n\n"); for(ii=0; ii<(syndromeLength); ii++){ if (ii < 10) { fprintf(OutFilePolymul, " RsDecodeMult RsDecodeMult_%d ( .A(epsilonMsb[%d:0]), .B(syndromeReg_%d[%d:0]), .P(product_%d[%d:0]));\n", ii,bitSymbol-1, ii,bitSymbol-1, ii,bitSymbol-1); }else{ fprintf(OutFilePolymul, " RsDecodeMult RsDecodeMult_%d ( .A(epsilonMsb[%d:0]), .B(syndromeReg_%d[%d:0]), .P(product_%d[%d:0]));\n", ii,bitSymbol-1, ii,bitSymbol-1, ii,bitSymbol-1); } } fprintf(OutFilePolymul, "\n\n\n"); //------------------------------------------------------------------------ // + sumReg_0,..., sumReg_xxx //------------------------------------------------------------------------ fprintf(OutFilePolymul, " //------------------------------------------------------------------------\n"); fprintf(OutFilePolymul, " // + sumReg_0,..., sumReg_%d\n", syndromeLength-1); fprintf(OutFilePolymul, " //------------------------------------------------------------------------\n"); for(ii=0; ii<(syndromeLength); ii++){ fprintf(OutFilePolymul, " reg [%d:0] sumReg_%d;\n",bitSymbol-1, ii); } fprintf(OutFilePolymul, "\n\n"); fprintf(OutFilePolymul, " always @(posedge CLK or negedge RESET) begin\n"); fprintf(OutFilePolymul, " if (~RESET) begin\n"); for(ii=0; ii<(syndromeLength); ii++){ if (ii < 10) { fprintf(OutFilePolymul, " sumReg_%d [%d:0] <= %d'd0;\n", ii,bitSymbol-1,bitSymbol); }else{ fprintf(OutFilePolymul, " sumReg_%d [%d:0] <= %d'd0;\n", ii,bitSymbol-1,bitSymbol); } } fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, " else if (enable == 1'b1) begin\n"); fprintf(OutFilePolymul, " if (sync == 1'b1) begin\n"); fprintf(OutFilePolymul, " if (epsilon_%d[%d:0] != %d'd0) begin\n", syndromeLength,bitSymbol-1,bitSymbol); for(ii=0; ii<(syndromeLength); ii++){ if (ii < 10) { fprintf(OutFilePolymul, " sumReg_%d [%d:0] <= syndromeIn_%d [%d:0];\n", ii,bitSymbol-1, ii,bitSymbol-1); }else{ fprintf(OutFilePolymul, " sumReg_%d [%d:0] <= syndromeIn_%d [%d:0];\n", ii,bitSymbol-1, ii,bitSymbol-1); } } fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, " else begin\n"); for(ii=0; ii<(syndromeLength); ii++){ if (ii < 10) { fprintf(OutFilePolymul, " sumReg_%d [%d:0] <= %d'd0;\n", ii,bitSymbol-1,bitSymbol); }else{ fprintf(OutFilePolymul, " sumReg_%d [%d:0] <= %d'd0;\n", ii,bitSymbol-1,bitSymbol); } } fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, " else begin\n"); fprintf(OutFilePolymul, " sumReg_0 [%d:0] <= product_0 [%d:0];\n",bitSymbol-1,bitSymbol-1); for(ii=1; ii<(syndromeLength); ii++){ if (ii<10){ fprintf(OutFilePolymul, " sumReg_%d [%d:0] <= sumReg_%d [%d:0] ^ product_%d [%d:0];\n", ii,bitSymbol-1, (ii-1),bitSymbol-1, ii,bitSymbol-1); }else{ fprintf(OutFilePolymul, " sumReg_%d [%d:0] <= sumReg_%d [%d:0] ^ product_%d [%d:0];\n", ii,bitSymbol-1, (ii-1),bitSymbol-1, ii,bitSymbol-1); } } fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, " end\n"); fprintf(OutFilePolymul, "\n\n\n"); //------------------------------------------------------------------------ //- Output Ports //------------------------------------------------------------------------ fprintf(OutFilePolymul, " //------------------------------------------------------------------------\n"); fprintf(OutFilePolymul, " // Output signals\n"); fprintf(OutFilePolymul, " //------------------------------------------------------------------------\n"); for(ii=0; ii<(syndromeLength); ii++){ if (ii<10){ fprintf(OutFilePolymul, " assign syndromeOut_%d [%d:0] = sumReg_%d [%d:0];\n", ii,bitSymbol-1, ii,bitSymbol-1); }else{ fprintf(OutFilePolymul, " assign syndromeOut_%d [%d:0] = sumReg_%d [%d:0];\n", ii,bitSymbol-1, ii,bitSymbol-1); } } fprintf(OutFilePolymul, "\n\n"); fprintf(OutFilePolymul, "endmodule\n"); //--------------------------------------------------------------- // close file //--------------------------------------------------------------- fclose(OutFilePolymul); //--------------------------------------------------------------- // automatically convert Dos mode To Unix mode //--------------------------------------------------------------- char ch; char temp[MAX_PATH]="\0"; //Open the file for reading in binarymode. ifstream fp_read(strRsDecodePolymul, ios_base::in | ios_base::binary); sprintf(temp, "%s.temp", strRsDecodePolymul); //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(strRsDecodePolymul); //Rename the temporary file to the input file. rename(temp, strRsDecodePolymul); //Delete the temporary file. remove(temp); //--------------------------------------------------------------- // clean string //--------------------------------------------------------------- free(strRsDecodePolymul); }
Go to most recent revision | Compare with Previous | Blame | View Log