I created a new code read the alist format by defining the loctions of of ones in each row of the parity check matrix
and the matlab code example to read H matrix with size N = 96 and M = 64 :
clc
clear all
close all
N = 96; % No. of rows
M = 64; % No. of Columns
% Creating Zero Matrix with the required size
H = zeros(M,N);
% Positions of ones for each coulmn from Mackay Alist Format
pos_of_ones_col = [1 33 11;
2 34 1;
3 35 4;
4 36 30;
5 37 28;
6 38 31;
7 39 32;
8 40 26;
9 41 2;
10 42 13;
11 43 18;
12 44 27;
13 45 19;
14 46 7;
15 47 29;
16 48 10;
17 49 6;
18 50 23;
19 51 25;
20 52 3;
21 53 9;
22 54 20;
23 55 8;
24 56 15;
25 57 22;
26 58 14;
27 59 5;
28 60 16;
29 61 17;
30 62 12;
31 63 24;
32 64 21;
48 44 54;
38 8 44;
1 28 39;
8 47 37;
22 3 43;
28 23 30;
13 52 5;
53 33 63;
16 51 23;
21 38 26;
32 49 10;
26 63 36;
55 15 2;
56 36 49;
62 14 52;
27 16 57;
31 46 4;
3 56 16;
59 45 60;
63 40 25;
43 42 41;
33 24 58;
2 30 35;
50 39 21;
7 4 8;
17 59 34;
14 20 47;
6 26 19;
39 19 24;
47 62 42;
61 1 32;
46 13 11;
45 53 28;
41 17 22;
40 12 14;
5 10 17;
19 21 20;
64 2 56;
36 7 3;
4 55 61;
10 29 31;
15 37 53;
54 35 59;
18 34 6;
9 57 50;
49 9 48;
12 18 51;
44 43 64;
11 64 62;
20 61 40;
34 32 29;
37 41 33;
29 27 7;
58 48 13;
24 5 9;
51 22 38;
57 54 45;
30 50 1;
42 25 55;
23 11 15;
25 31 18;
52 6 27;
35 60 46;
60 58 12];
for i = 1:N
for j = 1:3
H((pos_of_ones_col(i,j)),i) = 1;
end
end
% good luck
