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https://opencores.org/ocsvn/reed_solomon_codec_generator/reed_solomon_codec_generator/trunk
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//===================================================================
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// Module Name : RsDecodeShiftOmegaEmulator
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// File Name : RsDecodeShiftOmegaEmulator.cpp
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// Function : RS decoder shift omega emulator
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//
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// Revision History:
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// Date By Version Change Description
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//===================================================================
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// 2009/02/03 Gael Sapience 1.0 Original
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//
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//===================================================================
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// (C) COPYRIGHT 2009 SYSTEM LSI CO., Ltd.
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//
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#include <stdio.h>
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#include <stdlib.h>
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void RsDecodeShiftOmegaEmulator(int* OmegaShiftedTab, int* OmegaTab, int *numShifted, int TotalSize, int DataSize, int bitSymbol) {
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//---------------------------------------------------------------
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// C++ variables
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//---------------------------------------------------------------
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int syndromeLength;
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int ii;
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int jj;
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syndromeLength = TotalSize - DataSize;
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//---------------------------------------------------------------
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// C++ variables
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//---------------------------------------------------------------
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//---------------------------------------------------------------
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// compute OmegaShiftedTab
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//---------------------------------------------------------------
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for(ii=0; ii<syndromeLength; ii++){
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if ((ii+numShifted[0]) < syndromeLength){
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for(jj=0; jj<bitSymbol; jj++){
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OmegaShiftedTab[ii*bitSymbol+jj] = OmegaTab[(ii+numShifted[0])*bitSymbol+jj];
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}
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}else{
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for(jj=0; jj<bitSymbol; jj++){
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OmegaShiftedTab[ii*bitSymbol+jj] = 0;
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}
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}
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}
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}
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