Subject: Re: 3/9/97 kernel on Q650...
To: Stephen C. Brown <sbrown@shellx.best.com>
From: Allen Briggs <briggs@puma.macbsd.com>
List: port-mac68k
Date: 03/11/1997 08:36:53
> + if(cpui->class != MACH_CLASSAV)
> + {
> + mac68k_vidlog = mac68k_vidphys = 0xf9000000;
> + mac68k_vidlen = 1 * 1024 * 1024;
> + }
Hmmm... You might want to make that 2MB. That's what I have in my
Q700, anyway. Granted, it's only _using_ a small part of that since
it's not running on much of a display (actually, nothing's attached
right now--I'm running off an Apple 2-page display NuBus card ;-).
> If anyone's interested, the old "madhatter" patch just involved
> changing the line in grfiv_match() in grf_iv.c that read:
>
> if(!internal_video_found || (mac68k_vidlog == 0 ))
>
> to read:
>
> if(!internal_video_found)
>
> This basically has the effect of letting the video go ahead and
> exist at whereever it is(typically address 0).
Actually, this should have had no effect. mac68k_vidlog is the virtual
address of the video memory which should never be 0 unless it's not
configured. Unless I'm missing something, which is eminently possible.
-allen
--
Allen Briggs - end killing - briggs@macbsd.com