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+.\" Copyright (c) 1986, 1991 Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)crl.4	6.3 (Berkeley) 3/27/91
+.\"	$Id: crl.4,v 1.1 1995/10/18 08:44:33 deraadt Exp $
+.\"
+.Dd March 27, 1991
+.Dt CRL 4 vax
+.Os BSD 4.3
+.Sh NAME
+.Nm crl
+.Nd
+.Tn VAX
+8600 console
+.Tn RL Ns 02
+interface
+.Sh DESCRIPTION
+This is a simple interface to the
+.Tn DEC
+.Tn RL Ns 02
+disk unit which is part of the console
+subsystem on the
+.Tn VAX
+8600 and 8650.
+Access is given to the entire
+.Tn RL Ns 02
+disk; the pack format is the same
+as that of
+.Tn RL Ns 02
+disks on other controllers.
+As on other
+.Tn VAX
+console media, transfers are done a word at a time
+using privileged registers (i.e., slowly).
+.Pp
+All
+.Tn I/O
+is raw; the seek addresses in raw transfers should be a multiple
+of 512 bytes and a multiple of 512 bytes should be transferred,
+as in other
+.Dq raw
+disk interfaces.
+(Although the sector size is actually 256 bytes, the driver allows
+operations only on 512-byte boundaries.)
+.Sh FILES
+.Bl -tag -width /dev/crl -compact
+.It Pa /dev/crl
+.El
+.Sh SEE ALSO
+.Xr arff 8
+.Sh HISTORY
+The
+.Nm
+driver appeared in
+.Bx 4.3 .