copyparm
copyparm(nbps, NBPS);
copyparm(ncyl, NCYL);
copyparm(nspt, NSPT);
copyparm(ntrk, NTRK);
copyparm(stepspercyl, STEPSPERCYL);
copyparm(gaplen, GAPLEN);
copyparm(fillbyte, FILLBYTE);
copyparm(xfer_rate, XFER_RATE);
copyparm(interleave, INTERLEAVE);