SKEIN_UNROLL_512
#if SKEIN_UNROLL_512
#if (RCNT % SKEIN_UNROLL_512)
#if SKEIN_UNROLL_512 == 0
for (r = 1; r < 2 * RCNT; r += 2 * SKEIN_UNROLL_512)
((SKEIN_UNROLL_512 == 0 && SKEIN_512_ROUNDS_TOTAL / 8 > (NN)) || \
(SKEIN_UNROLL_512 > (NN)))
#if (SKEIN_UNROLL_512 > 14)
return (SKEIN_UNROLL_512);