Subversion Repositories reed_solomon_decoder

/* This program is free software: you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation, either version 3 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program.  If not, see <http://www.gnu.org/licenses/>.

   Email : semiconductors@varkongroup.com

   Tel   : 1-732-447-8611

*/

///convert values from  power domain to decimal domain

module GF_matrix_dec(clk,re,address_read,data_out);

parameter address_width=8;

parameter data_width=8;

parameter num_words=256;

input clk,re;

input [address_width-1:0] address_read;

output [data_width-1:0] data_out;

reg [data_width-1:0] data_out;

reg [data_width-1:0] mem [0:num_words-1];

initial

begin

mem[0]<= 'b00000000;

mem[1]<= 'b00000001;

mem[2]<= 'b00000010;

mem[3]<= 'b00000100;

mem[4]<= 'b00001000;

mem[5]<= 'b00010000;

mem[6]<= 'b00100000;

mem[7]<= 'b01000000;

mem[8]<= 'b10000000;

mem[9]<= 'b00011101;

mem[10]<= 'b00111010;

mem[11]<= 'b01110100;

mem[12]<= 'b11101000;

mem[13]<= 'b11001101;

mem[14]<= 'b10000111;

mem[15]<= 'b00010011;

mem[16]<= 'b00100110;

mem[17]<= 'b01001100;

mem[18]<= 'b10011000;

mem[19]<= 'b00101101;

mem[20]<= 'b01011010;

mem[21]<= 'b10110100;

mem[22]<= 'b01110101;

mem[23]<= 'b11101010;

mem[24]<= 'b11001001;

mem[25]<= 'b10001111;

mem[26]<= 'b00000011;

mem[27]<= 'b00000110;

mem[28]<= 'b00001100;

mem[29]<= 'b00011000;

mem[30]<= 'b00110000;

mem[31]<= 'b01100000;

mem[32]<= 'b11000000;

mem[33]<= 'b10011101;

mem[34]<= 'b00100111;

mem[35]<= 'b01001110;

mem[36]<= 'b10011100;

mem[37]<= 'b00100101;

mem[38]<= 'b01001010;

mem[39]<= 'b10010100;

mem[40]<= 'b00110101;

mem[41]<= 'b01101010;

mem[42]<= 'b11010100;

mem[43]<= 'b10110101;

mem[44]<= 'b01110111;

mem[45]<= 'b11101110;

mem[46]<= 'b11000001;

mem[47]<= 'b10011111;

mem[48]<= 'b00100011;

mem[49]<= 'b01000110;

mem[50]<= 'b10001100;

mem[51]<= 'b00000101;

mem[52]<= 'b00001010;

mem[53]<= 'b00010100;

mem[54]<= 'b00101000;

mem[55]<= 'b01010000;

mem[56]<= 'b10100000;

mem[57]<= 'b01011101;

mem[58]<= 'b10111010;

mem[59]<= 'b01101001;

mem[60]<= 'b11010010;

mem[61]<= 'b10111001;

mem[62]<= 'b01101111;

mem[63]<= 'b11011110;

mem[64]<= 'b10100001;

mem[65]<= 'b01011111;

mem[66]<= 'b10111110;

mem[67]<= 'b01100001;

mem[68]<= 'b11000010;

mem[69]<= 'b10011001;

mem[70]<= 'b00101111;

mem[71]<= 'b01011110;

mem[72]<= 'b10111100;

mem[73]<= 'b01100101;

mem[74]<= 'b11001010;

mem[75]<= 'b10001001;

mem[76]<= 'b00001111;

mem[77]<= 'b00011110;

mem[78]<= 'b00111100;

mem[79]<= 'b01111000;

mem[80]<= 'b11110000;

mem[81]<= 'b11111101;

mem[82]<= 'b11100111;

mem[83]<= 'b11010011;

mem[84]<= 'b10111011;

mem[85]<= 'b01101011;

mem[86]<= 'b11010110;

mem[87]<= 'b10110001;

mem[88]<= 'b01111111;

mem[89]<= 'b11111110;

mem[90]<= 'b11100001;

mem[91]<= 'b11011111;

mem[92]<= 'b10100011;

mem[93]<= 'b01011011;

mem[94]<= 'b10110110;

mem[95]<= 'b01110001;

mem[96]<= 'b11100010;

mem[97]<= 'b11011001;

mem[98]<= 'b10101111;

mem[99]<= 'b01000011;

mem[100]<= 'b10000110;

mem[101]<= 'b00010001;

mem[102]<= 'b00100010;

mem[103]<= 'b01000100;

mem[104]<= 'b10001000;

mem[105]<= 'b00001101;

mem[106]<= 'b00011010;

mem[107]<= 'b00110100;

mem[108]<= 'b01101000;

mem[109]<= 'b11010000;

mem[110]<= 'b10111101;

mem[111]<= 'b01100111;

mem[112]<= 'b11001110;

mem[113]<= 'b10000001;

mem[114]<= 'b00011111;

mem[115]<= 'b00111110;

mem[116]<= 'b01111100;

mem[117]<= 'b11111000;

mem[118]<= 'b11101101;

mem[119]<= 'b11000111;

mem[120]<= 'b10010011;

mem[121]<= 'b00111011;

mem[122]<= 'b01110110;

mem[123]<= 'b11101100;

mem[124]<= 'b11000101;

mem[125]<= 'b10010111;

mem[126]<= 'b00110011;

mem[127]<= 'b01100110;

mem[128]<= 'b11001100;

mem[129]<= 'b10000101;

mem[130]<= 'b00010111;

mem[131]<= 'b00101110;

mem[132]<= 'b01011100;

mem[133]<= 'b10111000;

mem[134]<= 'b01101101;

mem[135]<= 'b11011010;

mem[136]<= 'b10101001;

mem[137]<= 'b01001111;

mem[138]<= 'b10011110;

mem[139]<= 'b00100001;

mem[140]<= 'b01000010;

mem[141]<= 'b10000100;

mem[142]<= 'b00010101;

mem[143]<= 'b00101010;

mem[144]<= 'b01010100;

mem[145]<= 'b10101000;

mem[146]<= 'b01001101;

mem[147]<= 'b10011010;

mem[148]<= 'b00101001;

mem[149]<= 'b01010010;

mem[150]<= 'b10100100;

mem[151]<= 'b01010101;

mem[152]<= 'b10101010;

mem[153]<= 'b01001001;

mem[154]<= 'b10010010;

mem[155]<= 'b00111001;

mem[156]<= 'b01110010;

mem[157]<= 'b11100100;

mem[158]<= 'b11010101;

mem[159]<= 'b10110111;

mem[160]<= 'b01110011;

mem[161]<= 'b11100110;

mem[162]<= 'b11010001;

mem[163]<= 'b10111111;

mem[164]<= 'b01100011;

mem[165]<= 'b11000110;

mem[166]<= 'b10010001;

mem[167]<= 'b00111111;

mem[168]<= 'b01111110;

mem[169]<= 'b11111100;

mem[170]<= 'b11100101;

mem[171]<= 'b11010111;

mem[172]<= 'b10110011;

mem[173]<= 'b01111011;

mem[174]<= 'b11110110;

mem[175]<= 'b11110001;

mem[176]<= 'b11111111;

mem[177]<= 'b11100011;

mem[178]<= 'b11011011;

mem[179]<= 'b10101011;

mem[180]<= 'b01001011;

mem[181]<= 'b10010110;

mem[182]<= 'b00110001;

mem[183]<= 'b01100010;

mem[184]<= 'b11000100;

mem[185]<= 'b10010101;

mem[186]<= 'b00110111;

mem[187]<= 'b01101110;

mem[188]<= 'b11011100;

mem[189]<= 'b10100101;

mem[190]<= 'b01010111;

mem[191]<= 'b10101110;

mem[192]<= 'b01000001;

mem[193]<= 'b10000010;

mem[194]<= 'b00011001;

mem[195]<= 'b00110010;

mem[196]<= 'b01100100;

mem[197]<= 'b11001000;

mem[198]<= 'b10001101;

mem[199]<= 'b00000111;

mem[200]<= 'b00001110;

mem[201]<= 'b00011100;

mem[202]<= 'b00111000;

mem[203]<= 'b01110000;

mem[204]<= 'b11100000;

mem[205]<= 'b11011101;

mem[206]<= 'b10100111;

mem[207]<= 'b01010011;

mem[208]<= 'b10100110;

mem[209]<= 'b01010001;

mem[210]<= 'b10100010;

mem[211]<= 'b01011001;

mem[212]<= 'b10110010;

mem[213]<= 'b01111001;

mem[214]<= 'b11110010;

mem[215]<= 'b11111001;

mem[216]<= 'b11101111;

mem[217]<= 'b11000011;

mem[218]<= 'b10011011;

mem[219]<= 'b00101011;

mem[220]<= 'b01010110;

mem[221]<= 'b10101100;

mem[222]<= 'b01000101;

mem[223]<= 'b10001010;

mem[224]<= 'b00001001;

mem[225]<= 'b00010010;

mem[226]<= 'b00100100;

mem[227]<= 'b01001000;

mem[228]<= 'b10010000;

mem[229]<= 'b00111101;

mem[230]<= 'b01111010;

mem[231]<= 'b11110100;

mem[232]<= 'b11110101;

mem[233]<= 'b11110111;

mem[234]<= 'b11110011;

mem[235]<= 'b11111011;

mem[236]<= 'b11101011;

mem[237]<= 'b11001011;

mem[238]<= 'b10001011;

mem[239]<= 'b00001011;

mem[240]<= 'b00010110;

mem[241]<= 'b00101100;

mem[242]<= 'b01011000;

mem[243]<= 'b10110000;

mem[244]<= 'b01111101;

mem[245]<= 'b11111010;

mem[246]<= 'b11101001;

mem[247]<= 'b11001111;

mem[248]<= 'b10000011;

mem[249]<= 'b00011011;

mem[250]<= 'b00110110;

mem[251]<= 'b01101100;

mem[252]<= 'b11011000;

mem[253]<= 'b10101101;

mem[254]<= 'b01000111;

mem[255]<= 'b10001110;

end

always @ (posedge(clk))

begin

        if (re==1'b1)

                begin

                        data_out <= mem[address_read];

                end

end

endmodule