Subject: Re: Blitting
To: Chris Hopps <chopps@emunix.emich.edu>
From: None <mw@eunet.ch>
List: amiga-x
Date: 03/25/1994 19:31:26
> > try the /dev/view ioctls and if there is an ENOSUP or something
> > it would do the regular 'cfb' routines.
>
> Like I said the calls should be made and succeed always that way
> the ddx layer doesn't need to worry about it. /dev/view should support
> default CPU related functions to fill in for missing blitter capabilities
> in the specific graphic board.
No.. don't make that mistake again (like some popular ???OS before..) to put
code for a windowing system into the kernel.. Having drivers around existing
hardware is something suited to go into the kernel, having generic cpu-hogs
in the kernel is a big big no-no, don't forget, the kernel is NON-preemptive
as long as it doesn't explicitly sleep on something...
-Markus
--
CHUUG/EUnet Switzerland Markus Wild
Zweierstrasse 35 Tel: +41 1 291 45 80 mw@eunet.ch
CH-8004 Zuerich Fax: +41 1 291 46 42 S=mw;P=EUnet;A=EUnet;C=CH
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