23 #ifndef INCLUDED_DIGITAL_GLFSR_H
24 #define INCLUDED_DIGITAL_GLFSR_H
45 glfsr(
int mask,
int seed) { d_shift_register = seed; d_mask = mask; }
48 static int glfsr_mask(
int degree);
50 unsigned char next_bit()
52 unsigned char bit = d_shift_register & 1;
53 d_shift_register >>= 1;
55 d_shift_register ^= d_mask;
59 int mask()
const {
return d_mask; }