SEQ_ATN
seq = use_active_neg + (ms->n_msgout? SEQ_ATN: 0);
out_8(&mr->sequence, SEQ_MSGIN + SEQ_ATN + use_active_neg);
out_8(&mr->sequence, SEQ_MSGOUT + use_active_neg + SEQ_ATN);
out_8(&mr->sequence, SEQ_MSGIN + use_active_neg + SEQ_ATN);
seq = use_active_neg + (ms->n_msgout? SEQ_ATN: 0);
out_8(&mr->sequence, SEQ_SELECT + SEQ_ATN);