%  PN code generation program
%
%  generates one period of the m,k sequence
%  by Thad Welch

function output = pngen(m,k)

no_rep=2^m-1;
output=zeros(1,no_rep);
shift_reg=zeros(1,m);
shift_reg(m)=1;
for i=1:no_rep
   feedback=xor2(shift_reg(m),shift_reg(k));
   shift_reg(2:m)=shift_reg(1:m-1);
   shift_reg(1)=feedback;
   output(i)=shift_reg(1);
end