GET_UNIPERIF_ITS
status = GET_UNIPERIF_ITS(player);
SET_UNIPERIF_ITS_BCLR(player, GET_UNIPERIF_ITS(player));
SET_UNIPERIF_ITS_BCLR(reader, GET_UNIPERIF_ITS(reader));
status = GET_UNIPERIF_ITS(reader);