I want to generalize hamming 3 encoder....give some suggession..

[sooraj sreedhar]

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//Encoder section of hamming 3
`timescale 100 ps/ 100ps
`ifdef SYNTHESIS
module encoder(parity,
               state
              );
`else
module encoder_rtl(parity,
                  state
                  );
`endif
   parameter    N = 4;
   parameter    M = 3;
   input  [N-1:0]  state;
   output [M-1:0] parity;
 
   generate
      begin 
         genvar       i;
         for (i = 0; i <M; i = i + 1)
         begin : calc_parity
            assign parity[i] = calculate_parity(state,i);
         end
      end
   endgenerate
                           
function automatic calculate_parity (input [N-1:0]  state,//states in the input FSM
                             input [M-1:0] i//parity bit representation
                           );
begin
reg [0:56]parity_table[0:5] =          '{ 57'b1_0101_0101_0101_0101_0101_0101_0101_0110_1010_1010_1010_1101_0101_1011,//0
                                          57'b1_1001_1001_1001_1001_1001_1001_1001_1011_0011_0011_0011_0110_0110_1101,//1
                                          57'b1_1110_0001_1110_0001_1110_0001_1110_0011_1100_0011_1100_0111_1000_1110,//2 
                                          57'b1_1111_1110_0000_0001_1111_1110_0000_0011_1111_1100_0000_0111_1111_0000,//3 
                                          57'b1_1111_1111_1111_1110_0000_0000_0000_0011_1111_1111_1111_1000_0000_0000,//4
                                          57'b1_1111_1111_1111_1111_1111_1111_1111_1100_0000_0000_0000_0000_0000_0000};//5
 
   
 
reg [N-1:0] masked;
reg [N-1:0] masked_temp;
  
reg result;
result=0;
            masked_temp = parity_table[i];
//$display("parity_table=%b,i=%d",parity_table[i],i);
            masked = state & masked_temp;
//$display("masked=%b,state=%b,masked_temp=%b",masked,state,masked_temp);
 
            result = ^masked;
//$display("results=%d",result);
        
        return result;
end
endfunction
                                     
   
endmodule

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Here i have written hamming code encoder. But its for 57 bit .. I want to generalize that one.. and i want to directly find parioty bit by modulo 2 addition of corresponding bit..pls help mee

 

[andre_luis]

I want to generalize that one

You tabled the parity matrix, so it is not parametrized on your code. The first thing that come to mind on seeing your code, is to change the function calculate_parity in such a manner that all the maths involved on finding this matrix should be made in that funcion.