RLCS_USHFT
RL_WREG(RL_CS, RLCS_GS|(unit << RLCS_USHFT));
RL_WREG(RL_CS, RLCS_GS|(i << RLCS_USHFT));
RL_WREG(RL_CS, RLCS_RHDR|(rc->rc_hwid << RLCS_USHFT));
RL_WREG(RL_CS, RLCS_SEEK | (rc->rc_hwid << RLCS_USHFT));
RL_WREG(RL_CS, RLCS_IE|RLCS_RD|(rc->rc_hwid << RLCS_USHFT));
RL_WREG(RL_CS, RLCS_IE|RLCS_WD|(rc->rc_hwid << RLCS_USHFT));
RL_WREG(RL_CS, RLCS_RHDR|(rc->rc_hwid << RLCS_USHFT));