HAMMER2_PBUFRADIX
broot.data_off = ((hammer2_off_t)i * (hammer2_off_t)HAMMER2_ZONE_BYTES64) | HAMMER2_PBUFRADIX;
#define HAMMER2_IND_RADIX_MAX HAMMER2_PBUFRADIX
#if (1 << HAMMER2_PBUFRADIX) != HAMMER2_PBUFSIZE