HDAC_RIRBSIZE_RIRBSIZE_256
rirbsize = HDAC_RIRBSIZE_RIRBSIZE(HDAC_RIRBSIZE_RIRBSIZE_256);
rirbsize = HDAC_RIRBSIZE_RIRBSIZE(HDAC_RIRBSIZE_RIRBSIZE_256);
[HDAC_RIRBSIZE_RIRBSIZE_256] = 256,
HDAC_RIRBSIZE_RIRBSZCAP_256 | HDAC_RIRBSIZE_RIRBSIZE_256);