.\" $NetBSD: grf.4,v 1.6.4.1 2019/09/02 16:39:20 martin Exp $
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.\" Copyright (c) 2003 The NetBSD Foundation, Inc.
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.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Jaromir Dolecek.
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.Dd February 17, 2017
.Dt GRF 4 amiga
.Os
.Sh NAME
.Nm grf
.Nd Amiga graphics frame buffer device
.Sh SYNOPSIS
.Cd "grf0 at grfcc0"
.Cd "grf1 at grfrt0"
.Cd "grf2 at grfrh0"
.Cd "grf3 at grfcl?"
.Cd "grf4 at grful0"
.Cd "grf5 at grfcv0"
.Cd "grf6 at grfet?"
.Cd "grf7 at grfcv3d0"
.Sh DESCRIPTION
This is frame buffer device for Amiga.
There is fixed mapping to the common video hardware.
If the device is configured, the frame buffers are mapped as follows:
.Bl -tag -width "grf1 & grf2"
.It grf0
custom chips
.It grf1 & grf2
Retina Z2/Z3
.It grf3
Cirrus boards
.It grf4
A2410 video
.It grf5
CyberVision 64
.It grf6
ET4000 boards (Tseng - oMniBus, Domino, Merlin)
.It grf7
CyberVision 64/3D
.El
.Sh SEE ALSO
.Xr amiga/grfcl 4 ,
.Xr amiga/grfcv 4 ,
.Xr amiga/grfcv3d 4 ,
.Xr amiga/grfet 4 ,
.Xr amiga/grfrh 4 ,
.Xr amiga/grfrt 4 ,
.Xr amiga/grful 4 ,
.Xr amiga/ite 4 ,
.Xr hp300/grf 4
.Sh BUGS
This manpage should provide programming details.