7*7矩阵求逆的verilog实现

Posted 2022-03-01 fpga&matlab

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`timescale 1ns / 1ps
//

//
module Inverse_of_Matrix(o00, o01, o02, o03, o04, o05, o06, o07, o08, o09,
o10, o11, o12, o13, o14, o15, o16, o17, o18, o19,
o20, o21, o22, o23, o24, o25, o26, o27, o28, o29,
o30, o31, o32, o33, o34, o35, o36, o37, o38, o39,
o40, o41, o42, o43, o44, o45, o46, o47, o48, o49, clk);

output reg signed[31:0] o00, o01, o02, o03, o04, o05, o06, o07, o08, o09;
output reg signed [31:0] o10, o11, o12, o13, o14, o15, o16, o17, o18, o19;
output reg signed [31:0] o20, o21, o22, o23, o24, o25, o26, o27, o28, o29;
output reg signed [31:0] o30, o31, o32, o33, o34, o35, o36, o37, o38, o39;
output reg signed [31:0] o40, o41, o42, o43, o44, o45, o46, o47, o48, o49;

input clk;

reg signed [31:0] Mat[49:0];

initial
begin

Mat[0] <= 1;
Mat[1] <= 0;
Mat[2] <= 0;
Mat[3] <= 0;
Mat[4] <= 1;
Mat[5] <= 1;
Mat[6] <= 0;
Mat[7] <= 0;
Mat[8] <= 0;
Mat[9] <= 0;
Mat[10] <= 0;
Mat[11] <= 1;
Mat[12] <= 3;
Mat[13] <= 0;
Mat[14] <= 0;
Mat[15] <= 0;
Mat[16] <= 1;
Mat[17] <= 0;
Mat[18] <= 0;
Mat[19] <= 0;
Mat[20] <= 0;
Mat[21] <= 0;
Mat[22] <= 1;
Mat[23] <= 0;
Mat[24] <= 0;
Mat[25] <= 0;
Mat[26] <= 0;
Mat[27] <= 1;
Mat[28] <= 0;
Mat[29] <= 0;
Mat[30] <= 0;
Mat[31] <= 1;
Mat[32] <= 0;
Mat[33] <= 1;
Mat[34] <= 0;
Mat[35] <= 0;
Mat[36] <= 0;
Mat[37] <= 0;
Mat[38] <= 1;
Mat[39] <= 0;
Mat[40] <= 0;
Mat[41] <= 0;
Mat[42] <= 0;
Mat[43] <= 0;
Mat[44] <= 1;
Mat[45] <= 0;
Mat[46] <= 0;
Mat[47] <= 0;
Mat[48] <= 0;
Mat[49] <= 1;

end

always@(posedge clk)
begin

// for column 0 elements swapping

if(Mat[0] == 0)
begin
if(Mat[10] == 0)
begin
if(Mat[20] == 0)
begin
if(Mat[30] == 0)
begin
if(Mat[40] == 0)
begin
// Matrix Not Invertible
end
else
begin
Mat[00] <= Mat[40];
Mat[01] <= Mat[41];
Mat[02] <= Mat[42];
Mat[03] <= Mat[43];
Mat[04] <= Mat[44];
Mat[05] <= Mat[45];
Mat[06] <= Mat[46];
Mat[07] <= Mat[47];
Mat[08] <= Mat[48];
Mat[09] <= Mat[49];

Mat[40] <= Mat[00];
Mat[41] <= Mat[01];
Mat[42] <= Mat[02];
Mat[43] <= Mat[03];
Mat[44] <= Mat[04];
Mat[45] <= Mat[05];
Mat[46] <= Mat[06];
Mat[47] <= Mat[07];
Mat[48] <= Mat[08];
Mat[49] <= Mat[09];
end
end
else
begin
Mat[00] <= Mat[30];
Mat[01] <= Mat[31];
Mat[02] <= Mat[32];
Mat[03] <= Mat[33];
Mat[04] <= Mat[34];
Mat[05] <= Mat[35];
Mat[06] <= Mat[36];
Mat[07] <= Mat[37];
Mat[08] <= Mat[38];
Mat[09] <= Mat[39];

Mat[30] <= Mat[00];
Mat[31] <= Mat[01];
Mat[32] <= Mat[02];
Mat[33] <= Mat[03];
Mat[34] <= Mat[04];
Mat[35] <= Mat[05];
Mat[36] <= Mat[06];
Mat[37] <= Mat[07];
Mat[38] <= Mat[08];
Mat[39] <= Mat[09];
end
end
else
begin
Mat[00] <= Mat[20];
Mat[01] <= Mat[21];
Mat[02] <= Mat[22];
Mat[03] <= Mat[23];
Mat[04] <= Mat[24];
Mat[05] <= Mat[25];
Mat[06] <= Mat[26];
Mat[07] <= Mat[27];
Mat[08] <= Mat[28];
Mat[09] <= Mat[29];

Mat[20] <= Mat[00];
Mat[21] <= Mat[01];
Mat[22] <= Mat[02];
Mat[23] <= Mat[03];
Mat[24] <= Mat[04];
Mat[25] <= Mat[05];
Mat[26] <= Mat[06];
Mat[27] <= Mat[07];
Mat[28] <= Mat[08];
Mat[29] <= Mat[09];
end
end
else
begin
Mat[00] <= Mat[10];
Mat[01] <= Mat[11];
Mat[02] <= Mat[12];
Mat[03] <= Mat[13];
Mat[04] <= Mat[14];
Mat[05] <= Mat[15];
Mat[06] <= Mat[16];
Mat[07] <= Mat[17];
Mat[08] <= Mat[18];
Mat[09] <= Mat[19];

Mat[10] <= Mat[00];
Mat[11] <= Mat[01];
Mat[12] <= Mat[02];
Mat[13] <= Mat[03];
Mat[14] <= Mat[04];
Mat[15] <= Mat[05];
Mat[16] <= Mat[06];
Mat[17] <= Mat[07];
Mat[18] <= Mat[08];
Mat[19] <= Mat[09];
end
end

// zeroing elements under column 1 pivot

if(Mat[10] != 0)
begin
// substract row 1
Mat[10] <= Mat[10] * Mat[00] - Mat[00] * Mat[10];
Mat[11] <= Mat[11] * Mat[00] - Mat[01] * Mat[10];
Mat[12] <= Mat[12] * Mat[00] - Mat[02] * Mat[10];
Mat[13] <= Mat[13] * Mat[00] - Mat[03] * Mat[10];
Mat[14] <= Mat[14] * Mat[00] - Mat[04] * Mat[10];
Mat[15] <= Mat[15] * Mat[00] - Mat[05] * Mat[10];
Mat[16] <= Mat[16] * Mat[00] - Mat[06] * Mat[10];
Mat[17] <= Mat[17] * Mat[00] - Mat[07] * Mat[10];
Mat[18] <= Mat[18] * Mat[00] - Mat[08] * Mat[10];
Mat[19] <= Mat[19] * Mat[00] - Mat[09] * Mat[10];
end

if(Mat[20] != 0)
begin
// substract row 2
Mat[20] <= Mat[20] * Mat[00] - Mat[00] * Mat[20];
Mat[21] <= Mat[21] * Mat[00] - Mat[01] * Mat[20];
Mat[22] <= Mat[22] * Mat[00] - Mat[02] * Mat[20];
Mat[23] <= Mat[23] * Mat[00] - Mat[03] * Mat[20];
Mat[24] <= Mat[24] * Mat[00] - Mat[04] * Mat[20];
Mat[25] <= Mat[25] * Mat[00] - Mat[05] * Mat[20];
Mat[26] <= Mat[26] * Mat[00] - Mat[06] * Mat[20];
Mat[27] <= Mat[27] * Mat[00] - Mat[07] * Mat[20];
Mat[28] <= Mat[28] * Mat[00] - Mat[08] * Mat[20];
Mat[29] <= Mat[29] * Mat[00] - Mat[09] * Mat[20];
end

if(Mat[30] != 0)
begin
// substract row 3
Mat[30] <= Mat[30] * Mat[00] - Mat[00] * Mat[30];
Mat[31] <= Mat[31] * Mat[00] - Mat[01] * Mat[30];
Mat[32] <= Mat[32] * Mat[00] - Mat[02] * Mat[30];
Mat[33] <= Mat[33] * Mat[00] - Mat[03] * Mat[30];
Mat[34] <= Mat[34] * Mat[00] - Mat[04] * Mat[30];
Mat[35] <= Mat[35] * Mat[00] - Mat[05] * Mat[30];
Mat[36] <= Mat[36] * Mat[00] - Mat[06] * Mat[30];
Mat[37] <= Mat[37] * Mat[00] - Mat[07] * Mat[30];
Mat[38] <= Mat[38] * Mat[00] - Mat[08] * Mat[30];
Mat[39] <= Mat[39] * Mat[00] - Mat[09] * Mat[30];
end

if(Mat[40] != 0)
begin
// substract row 4
Mat[40] <= Mat[40] * Mat[00] - Mat[00] * Mat[40];
Mat[41] <= Mat[41] * Mat[00] - Mat[01] * Mat[40];
Mat[42] <= Mat[42] * Mat[00] - Mat[02] * Mat[40];
Mat[43] <= Mat[43] * Mat[00] - Mat[03] * Mat[40];
Mat[44] <= Mat[44] * Mat[00] - Mat[04] * Mat[40];
Mat[45] <= Mat[45] * Mat[00] - Mat[05] * Mat[40];
Mat[46] <= Mat[46] * Mat[00] - Mat[06] * Mat[40];
Mat[47] <= Mat[47] * Mat[00] - Mat[07] * Mat[40];
Mat[48] <= Mat[48] * Mat[00] - Mat[08] * Mat[40];
Mat[49] <= Mat[49] * Mat[00] - Mat[09] * Mat[40];
end


// for column 1 elements swapping

if(Mat[11] == 0)
begin
if(Mat[21] == 0)
begin
if(Mat[31] == 0)
begin
if(Mat[41] == 0)
begin
// Matrix Not Invertible
end
else
begin
Mat[10] <= Mat[40];
Mat[11] <= Mat[41];
Mat[12] <= Mat[42];
Mat[13] <= Mat[43];
Mat[14] <= Mat[44];
Mat[15] <= Mat[45];
Mat[16] <= Mat[46];
Mat[17] <= Mat[47];
Mat[18] <= Mat[48];
Mat[19] <= Mat[49];

Mat[40] <= Mat[10];
Mat[41] <= Mat[11];
Mat[42] <= Mat[12];
Mat[43] <= Mat[13];
Mat[44] <= Mat[14];
Mat[45] <= Mat[15];
Mat[46] <= Mat[16];
Mat[47] <= Mat[17];
Mat[48] <= Mat[18];
Mat[49] <= Mat[19];
end
end
else
begin
Mat[10] <= Mat[30];
Mat[11] <= Mat[31];
Mat[12] <= Mat[32];
Mat[13] <= Mat[33];
Mat[14] <= Mat[34];
Mat[15] <= Mat[35];
Mat[16] <= Mat[36];
Mat[17] <= Mat[37];
Mat[18] <= Mat[38];
Mat[19] <= Mat[39];

Mat[30] <= Mat[10];
Mat[31] <= Mat[11];
Mat[32] <= Mat[12];
Mat[33] <= Mat[13];
Mat[34] <= Mat[14];
Mat[35] <= Mat[15];
Mat[36] <= Mat[16];
Mat[37] <= Mat[17];
Mat[38] <= Mat[18];
Mat[39] <= Mat[19];
end
end
else
begin
Mat[10] <= Mat[20];
Mat[11] <= Mat[21];
Mat[12] <= Mat[22];
Mat[13] <= Mat[23];
Mat[14] <= Mat[24];
Mat[15] <= Mat[25];
Mat[16] <= Mat[26];
Mat[17] <= Mat[27];
Mat[18] <= Mat[28];
Mat[19] <= Mat[29];

Mat[20] <= Mat[10];
Mat[21] <= Mat[11];
Mat[22] <= Mat[12];
Mat[23] <= Mat[13];
Mat[24] <= Mat[14];
Mat[25] <= Mat[15];
Mat[26] <= Mat[16];
Mat[27] <= Mat[17];
Mat[28] <= Mat[18];
Mat[29] <= Mat[19];
end
end

if(Mat[21] != 0)
begin
// substract row 2
Mat[20] <= Mat[20] * Mat[11] - Mat[10] * Mat[21];
Mat[21] <= Mat[21] * Mat[11] - Mat[11] * Mat[21];
Mat[22] <= Mat[22] * Mat[11] - Mat[12] * Mat[21];
Mat[23] <= Mat[23] * Mat[11] - Mat[13] * Mat[21];
Mat[24] <= Mat[24] * Mat[11] - Mat[14] * Mat[21];
Mat[25] <= Mat[25] * Mat[11] - Mat[15] * Mat[21];
Mat[26] <= Mat[26] * Mat[11] - Mat[16] * Mat[21];
Mat[27] <= Mat[27] * Mat[11] - Mat[17] * Mat[21];
Mat[28] <= Mat[28] * Mat[11] - Mat[18] * Mat[21];
Mat[29] <= Mat[29] * Mat[11] - Mat[19] * Mat[21];
end

if(Mat[31] != 0)
begin
// substract row 3
Mat[30] <= Mat[30] * Mat[11] - Mat[10] * Mat[31];
Mat[31] <= Mat[31] * Mat[11] - Mat[11] * Mat[31];
Mat[32] <= Mat[32] * Mat[11] - Mat[12] * Mat[31];
Mat[33] <= Mat[33] * Mat[11] - Mat[13] * Mat[31];
Mat[34] <= Mat[34] * Mat[11] - Mat[14] * Mat[31];
Mat[35] <= Mat[35] * Mat[11] - Mat[15] * Mat[31];
Mat[36] <= Mat[36] * Mat[11] - Mat[16] * Mat[31];
Mat[37] <= Mat[37] * Mat[11] - Mat[17] * Mat[31];
Mat[38] <= Mat[38] * Mat[11] - Mat[18] * Mat[31];
Mat[39] <= Mat[39] * Mat[11] - Mat[19] * Mat[31];
end

if(Mat[41] != 0)
begin
// substract row 4
Mat[40] <= Mat[40] * Mat[11] - Mat[10] * Mat[41];
Mat[41] <= Mat[41] * Mat[11] - Mat[11] * Mat[41];
Mat[42] <= Mat[42] * Mat[11] - Mat[12] * Mat[41];
Mat[43] <= Mat[43] * Mat[11] - Mat[13] * Mat[41];
Mat[44] <= Mat[44] * Mat[11] - Mat[14] * Mat[41];
Mat[45] <= Mat[45] * Mat[11] - Mat[15] * Mat[41];
Mat[46] <= Mat[46] * Mat[11] - Mat[16] * Mat[41];
Mat[47] <= Mat[47] * Mat[11] - Mat[17] * Mat[41];
Mat[48] <= Mat[48] * Mat[11] - Mat[18] * Mat[41];
Mat[49] <= Mat[49] * Mat[11] - Mat[19] * Mat[41];
end

// for column 2 swapping elements

if(Mat[22] == 0)
begin
if(Mat[32] == 0)
begin
if(Mat[42] == 0)
begin
// Matrix Not Invertible
end
else
begin
Mat[20] <= Mat[40];
Mat[21] <= Mat[41];
Mat[22] <= Mat[42];
Mat[23] <= Mat[43];
Mat[24] <= Mat[44];
Mat[25] <= Mat[45];
Mat[26] <= Mat[46];
Mat[27] <= Mat[47];
Mat[28] <= Mat[48];
Mat[29] <= Mat[49];

Mat[40] <= Mat[20];
Mat[41] <= Mat[21];
Mat[42] <= Mat[22];
Mat[43] <= Mat[23];
Mat[44] <= Mat[24];
Mat[45] <= Mat[25];
Mat[46] <= Mat[26];
Mat[47] <= Mat[27];
Mat[48] <= Mat[28];
Mat[49] <= Mat[29];
end
end
else
begin
Mat[20] <= Mat[30];
Mat[21] <= Mat[31];
Mat[22] <= Mat[32];
Mat[23] <= Mat[33];
Mat[24] <= Mat[34];
Mat[25] <= Mat[35];
Mat[26] <= Mat[36];
Mat[27] <= Mat[37];
Mat[28] <= Mat[38];
Mat[29] <= Mat[39];

Mat[30] <= Mat[20];
Mat[31] <= Mat[21];
Mat[32] <= Mat[22];
Mat[33] <= Mat[23];
Mat[34] <= Mat[24];
Mat[35] <= Mat[25];
Mat[36] <= Mat[26];
Mat[37] <= Mat[27];
Mat[38] <= Mat[28];
Mat[39] <= Mat[29];
end
end



if(Mat[32] != 0)
begin
// substract row 3
Mat[30] <= Mat[30] * Mat[22] - Mat[20] * Mat[32];
Mat[31] <= Mat[31] * Mat[22] - Mat[21] * Mat[32];
Mat[32] <= Mat[32] * Mat[22] - Mat[22] * Mat[32];
Mat[33] <= Mat[33] * Mat[22] - Mat[23] * Mat[32];
Mat[34] <= Mat[34] * Mat[22] - Mat[24] * Mat[32];
Mat[35] <= Mat[35] * Mat[22] - Mat[25] * Mat[32];
Mat[36] <= Mat[36] * Mat[22] - Mat[26] * Mat[32];
Mat[37] <= Mat[37] * Mat[22] - Mat[27] * Mat[32];
Mat[38] <= Mat[38] * Mat[22] - Mat[28] * Mat[32];
Mat[39] <= Mat[39] * Mat[22] - Mat[29] * Mat[32];
end

if(Mat[42] != 0)
begin
// substract row 4
Mat[40] <= Mat[40] * Mat[22] - Mat[20] * Mat[42];
Mat[41] <= Mat[41] * Mat[22] - Mat[21] * Mat[42];
Mat[42] <= Mat[42] * Mat[22] - Mat[22] * Mat[42];
Mat[43] <= Mat[43] * Mat[22] - Mat[23] * Mat[42];
Mat[44] <= Mat[44] * Mat[22] - Mat[24] * Mat[42];
Mat[45] <= Mat[45] * Mat[22] - Mat[25] * Mat[42];
Mat[46] <= Mat[46] * Mat[22] - Mat[26] * Mat[42];
Mat[47] <= Mat[47] * Mat[22] - Mat[27] * Mat[42];
Mat[48] <= Mat[48] * Mat[22] - Mat[28] * Mat[42];
Mat[49] <= Mat[49] * Mat[22] - Mat[29] * Mat[42];
end

// for column 3 elements swapping

if(Mat[33] == 0)
begin
if(Mat[43] == 0)
begin
// Matrix Not Invertible
end
else
begin
Mat[30] <= Mat[40];
Mat[31] <= Mat[41];
Mat[32] <= Mat[42];
Mat[33] <= Mat[43];
Mat[34] <= Mat[44];
Mat[35] <= Mat[45];
Mat[36] <= Mat[46];
Mat[37] <= Mat[47];
Mat[38] <= Mat[48];
Mat[39] <= Mat[49];

Mat[40] <= Mat[30];
Mat[41] <= Mat[31];
Mat[42] <= Mat[32];
Mat[43] <= Mat[33];
Mat[44] <= Mat[34];
Mat[45] <= Mat[35];
Mat[46] <= Mat[36];
Mat[47] <= Mat[37];
Mat[48] <= Mat[38];
Mat[49] <= Mat[39];
end
end

if(Mat[43] != 0)
begin
// substract row 4
Mat[40] <= Mat[40] * Mat[33] - Mat[30] * Mat[43];
Mat[41] <= Mat[41] * Mat[33] - Mat[31] * Mat[43];
Mat[42] <= Mat[42] * Mat[33] - Mat[32] * Mat[43];
Mat[43] <= Mat[43] * Mat[33] - Mat[33] * Mat[43];
Mat[44] <= Mat[44] * Mat[33] - Mat[34] * Mat[43];
Mat[45] <= Mat[45] * Mat[33] - Mat[35] * Mat[43];
Mat[46] <= Mat[46] * Mat[33] - Mat[36] * Mat[43];
Mat[47] <= Mat[47] * Mat[33] - Mat[37] * Mat[43];
Mat[48] <= Mat[48] * Mat[33] - Mat[38] * Mat[43];
Mat[49] <= Mat[49] * Mat[33] - Mat[39] * Mat[43];
end

// for column 4 elements swapping

if(Mat[44] == 0)
begin
// Matrix Not Invertible
end
else
begin
Mat[34] <= Mat[34] * Mat[44] - Mat[34] * Mat[44];
Mat[35] <= Mat[35] * Mat[44] - Mat[34] * Mat[45];
Mat[36] <= Mat[36] * Mat[44] - Mat[34] * Mat[46];
Mat[37] <= Mat[37] * Mat[44] - Mat[34] * Mat[47];
Mat[38] <= Mat[38] * Mat[44] - Mat[34] * Mat[48];
Mat[39] <= Mat[39] * Mat[44] - Mat[34] * Mat[49];

Mat[24] <= Mat[24] * Mat[44] - Mat[24] * Mat[44];
Mat[25] <= Mat[25] * Mat[44] - Mat[24] * Mat[45];
Mat[26] <= Mat[26] * Mat[44] - Mat[24] * Mat[46];
Mat[27] <= Mat[27] * Mat[44] - Mat[24] * Mat[47];
Mat[28] <= Mat[28] * Mat[44] - Mat[24] * Mat[48];
Mat[29] <= Mat[29] * Mat[44] - Mat[24] * Mat[49];

Mat[14] <= Mat[14] * Mat[44] - Mat[14] * Mat[44];
Mat[15] <= Mat[15] * Mat[44] - Mat[14] * Mat[45];
Mat[16] <= Mat[16] * Mat[44] - Mat[14] * Mat[46];
Mat[17] <= Mat[17] * Mat[44] - Mat[14] * Mat[47];
Mat[18] <= Mat[18] * Mat[44] - Mat[14] * Mat[48];
Mat[19] <= Mat[19] * Mat[44] - Mat[14] * Mat[49];

Mat[04] <= Mat[04] * Mat[44] - Mat[04] * Mat[44];
Mat[05] <= Mat[05] * Mat[44] - Mat[04] * Mat[45];
Mat[06] <= Mat[06] * Mat[44] - Mat[04] * Mat[46];
Mat[07] <= Mat[07] * Mat[44] - Mat[04] * Mat[47];
Mat[08] <= Mat[08] * Mat[44] - Mat[04] * Mat[48];
Mat[09] <= Mat[09] * Mat[44] - Mat[04] * Mat[49];

end
if(Mat[33]==0)
begin
//Inverse doesnot excist
end
else
begin
Mat[23] <= Mat[23] * Mat[33] - Mat[23] * Mat[33];
Mat[24] <= Mat[24] * Mat[33] - Mat[23] * Mat[34];
Mat[25] <= Mat[25] * Mat[33] - Mat[23] * Mat[35];
Mat[26] <= Mat[26] * Mat[33] - Mat[23] * Mat[36];
Mat[27] <= Mat[27] * Mat[33] - Mat[23] * Mat[37];
Mat[28] <= Mat[28] * Mat[33] - Mat[23] * Mat[38];
Mat[29] <= Mat[29] * Mat[33] - Mat[23] * Mat[39];

Mat[13] <= Mat[13] * Mat[33] - Mat[13] * Mat[33];
Mat[14] <= Mat[14] * Mat[33] - Mat[13] * Mat[34];
Mat[15] <= Mat[15] * Mat[33] - Mat[13] * Mat[35];
Mat[16] <= Mat[16] * Mat[33] - Mat[13] * Mat[36];
Mat[17] <= Mat[17] * Mat[33] - Mat[13] * Mat[37];
Mat[18] <= Mat[18] * Mat[33] - Mat[13] * Mat[38];
Mat[19] <= Mat[19] * Mat[33] - Mat[13] * Mat[39];

Mat[03] <= Mat[03] * Mat[33] - Mat[03] * Mat[33];
Mat[04] <= Mat[04] * Mat[33] - Mat[03] * Mat[34];
Mat[05] <= Mat[05] * Mat[33] - Mat[03] * Mat[35];
Mat[06] <= Mat[06] * Mat[33] - Mat[03] * Mat[36];
Mat[07] <= Mat[07] * Mat[33] - Mat[03] * Mat[37];
Mat[08] <= Mat[08] * Mat[33] - Mat[03] * Mat[38];
Mat[09] <= Mat[09] * Mat[33] - Mat[03] * Mat[39];
end

if(Mat[22]==0)
begin
//Inverse does not exist
end
else
begin
Mat[12] <= Mat[12] * Mat[22] - Mat[12] * Mat[22];
Mat[13] <= Mat[13] * Mat[22] - Mat[12] * Mat[23];
Mat[14] <= Mat[14] * Mat[22] - Mat[12] * Mat[24];
Mat[15] <= Mat[15] * Mat[22] - Mat[12] * Mat[25];
Mat[16] <= Mat[16] * Mat[22] - Mat[12] * Mat[26];
Mat[17] <= Mat[17] * Mat[22] - Mat[12] * Mat[27];
Mat[18] <= Mat[18] * Mat[22] - Mat[12] * Mat[28];
Mat[19] <= Mat[19] * Mat[22] - Mat[12] * Mat[29];

Mat[02] <= Mat[02] * Mat[22] - Mat[02] * Mat[22];
Mat[03] <= Mat[03] * Mat[22] - Mat[02] * Mat[23];
Mat[04] <= Mat[04] * Mat[22] - Mat[02] * Mat[24];
Mat[05] <= Mat[05] * Mat[22] - Mat[02] * Mat[25];
Mat[06] <= Mat[06] * Mat[22] - Mat[02] * Mat[26];
Mat[07] <= Mat[07] * Mat[22] - Mat[02] * Mat[27];
Mat[08] <= Mat[08] * Mat[22] - Mat[02] * Mat[28];
Mat[09] <= Mat[09] * Mat[22] - Mat[02] * Mat[29];
end

if(Mat[11]==0)
begin
//Inverse does not exist
end
else
begin
Mat[01] <= Mat[01] * Mat[11] - Mat[01] * Mat[11];
Mat[02] <= Mat[02] * Mat[11] - Mat[01] * Mat[12];
Mat[03] <= Mat[03] * Mat[11] - Mat[01] * Mat[13];
Mat[04] <= Mat[04] * Mat[11] - Mat[01] * Mat[14];
Mat[05] <= Mat[05] * Mat[11] - Mat[01] * Mat[15];
Mat[06] <= Mat[06] * Mat[11] - Mat[01] * Mat[16];
Mat[07] <= Mat[07] * Mat[11] - Mat[01] * Mat[17];
Mat[08] <= Mat[08] * Mat[11] - Mat[01] * Mat[18];
Mat[09] <= Mat[09] * Mat[11] - Mat[01] * Mat[19];
end

end

endmodule

D168

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