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Link: http://codepad.org/1AOx3oNW    [ raw code | output | fork ]

jleedev - C, pasted on Feb 3:
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#include <stdio.h>

const unsigned seed = 0x0C;
const unsigned mask = 0x11; 
const unsigned bits = 5;

int main() {
  unsigned reg = seed;
  unsigned bp, t;
  do {
    printf("%d", reg & 1);
    bp = reg & mask;
    t = 0;
    while (bp) {
      t ^= bp & 1;
      bp >>= 1;
    }
    reg >>= 1;
    reg |= t << (bits-1);
  } while (reg && reg != seed);
}


Output:
1
001100010000111110101


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