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/] [RsDecodeDegreeEmulator.cpp] - Blame information for rev 4

Line No.	Rev	Author	Line
1	2	issei	`//===================================================================`
2			`// Module Name : RsDecodeDegreeEmulator`
3			`// File Name : RsDecodeDegreeEmulator.cpp`
4			`// Function : RS Decoder degree emulator`
5			`//`
6			`// Revision History:`
7			`// Date By Version Change Description`
8			`//===================================================================`
9			`// 2009/02/03 Gael Sapience 1.0 Original`
10			`//`
11			`//===================================================================`
12			`// (C) COPYRIGHT 2009 SYSTEM LSI CO., Ltd.`
13			`//`
14			`#include <stdio.h>`
15			`#include <stdlib.h>`
16
17
18			`void RsDecodeDegreeEmulator(int Degree, int PoynomTab, int TotalSize, int DataSize, int bitSymbol) {`
19
20
21			`//---------------------------------------------------------------`
22			`// C++ variables`
23			`//---------------------------------------------------------------`
24			`int syndromeLength;`
25			`int DegreeFlag;`
26			`int nonZeroflag;`
27			`int ii, jj;`
28			`syndromeLength = TotalSize - DataSize;`
29
30
31			`//---------------------------------------------------------------`
32			`// compute Degree`
33			`//---------------------------------------------------------------`
34			`Degree [0] = 0;`
35			`DegreeFlag = 0;`
36
37
38			`for(ii=(syndromeLength-1); ii>=0; ii=ii-1){`
39			`nonZeroflag = 0;`
40
41			`for(jj=0; jj<bitSymbol; jj++){`
42			`if (PoynomTab[ii*bitSymbol+jj] !=0) {`
43			`nonZeroflag = 1;`
44			`}`
45			`}`
46
47			`if ((nonZeroflag == 1) && (DegreeFlag == 0)){`
48			`Degree [0] = ii;`
49			`DegreeFlag = 1;`
50			`}`
51			`}`
52
53
54			`}`