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+.\" $OpenBSD: gbox.4,v 1.1 2003/03/16 20:12:50 miod Exp $
+.\"
+.\" Copyright (c) 1990, 1991, 1993
+.\" The Regents of the University of California. All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" the Systems Programming Group of the University of Utah Computer
+.\" Science Department.
+.\"
+.\" 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: @(#)gb.4 8.1 (Berkeley) 6/9/93
+.\"
+.Dd March 16, 2003
+.Dt GBOX 4 hp300
+.Os
+.Sh NAME
+.Nm gbox
+.Nd
+.Tn HP98700
+.Dq Gatorbox
+frame buffer
+.Sh SYNOPSIS
+.Cd "gbox* at intio?"
+.Cd "gbox* at dio? scode ?"
+.Cd "grf* at gbox?"
+.Sh DESCRIPTION
+The
+.Tn HP98700
+and
+.Tn HP98710
+are 4- and 8-bit color frame buffers,
+also known as the Gatorbox.
+.Pp
+The term
+.Dq Gator
+will often be used, and it is not to be
+confused with
+.Dq Gator
+used in reference to an
+.Tn HP
+9837 or 200/237 machine.
+Also, the term
+.Dq Gatorbox
+is used for the 98700 alone, with the 98701 frame
+buffer memory or with the 98710 accelerator installed.
+.Pp
+The
+.Nm
+driver provides a frame buffer abstraction to the
+.Xr grf 4
+driver, and the associated
+.Xr ite 4
+console framework.
+.Pp
+The 98700 can be used as the only graphics device on a system, in which case
+it will be used as the system console.
+It can also be installed as a secondary display device.
+For the first case, the
+.Tn HP98287A M.A.D.
+interface card
+should be set to internal control space.
+This will put the frame buffer at the DIO address 0x200000 and the control
+registers at 0x560000.
+At this address it will be the ``preferred'' console device (see
+.Xr cons 4 ) .
+For use as a secondary device,
+the 98287A should be set to frame buffer address 0x300000,
+and to an external select code.
+.Pp
+It should be noted that this configuration will conflict with the 98547
+display card which has a 2 megabyte frame buffer starting at address 0x200000.
+The 98700 should only be installed as a secondary device in a machine with a
+1 bit 98544 display card or 4 bit 98545 card.
+The
+.%T 98700H Installation Guide
+contains further configuration information.
+.Sh SEE ALSO
+.Xr ioctl 2 ,
+.Xr dvbox 4 ,
+.Xr grf 4 ,
+.Xr hyper 4 ,
+.Xr intro 4 ,
+.Xr rbox 4 ,
+.Xr topcat 4