ZYAN_NEEDS_BIT
ZYAN_NEEDS_BIT(n, 0) + ZYAN_NEEDS_BIT(n, 1) + \
ZYAN_NEEDS_BIT(n, 2) + ZYAN_NEEDS_BIT(n, 3) + \
ZYAN_NEEDS_BIT(n, 4) + ZYAN_NEEDS_BIT(n, 5) + \
ZYAN_NEEDS_BIT(n, 6) + ZYAN_NEEDS_BIT(n, 7) + \
ZYAN_NEEDS_BIT(n, 8) + ZYAN_NEEDS_BIT(n, 9) + \
ZYAN_NEEDS_BIT(n, 10) + ZYAN_NEEDS_BIT(n, 11) + \
ZYAN_NEEDS_BIT(n, 12) + ZYAN_NEEDS_BIT(n, 13) + \
ZYAN_NEEDS_BIT(n, 14) + ZYAN_NEEDS_BIT(n, 15) + \
ZYAN_NEEDS_BIT(n, 16) + ZYAN_NEEDS_BIT(n, 17) + \
ZYAN_NEEDS_BIT(n, 18) + ZYAN_NEEDS_BIT(n, 19) + \
ZYAN_NEEDS_BIT(n, 20) + ZYAN_NEEDS_BIT(n, 21) + \
ZYAN_NEEDS_BIT(n, 22) + ZYAN_NEEDS_BIT(n, 23) + \
ZYAN_NEEDS_BIT(n, 24) + ZYAN_NEEDS_BIT(n, 25) + \
ZYAN_NEEDS_BIT(n, 26) + ZYAN_NEEDS_BIT(n, 27) + \
ZYAN_NEEDS_BIT(n, 28) + ZYAN_NEEDS_BIT(n, 29) + \
ZYAN_NEEDS_BIT(n, 30) + ZYAN_NEEDS_BIT(n, 31) \