[Coco] 2 Meg memory problem

[Mark Marlette]

Thanks Henry!
Mark Marlette
 http://www.cloud9tech.com
mark at cloud9tech.com
mark at gamecamaddict.com 

    On Tuesday, December 31, 2019, 06:44:44 PM CST, rietveld rietveld <rietveldh at hotmail.com> wrote:  
 
 I have the cloud9 2mb test. Dsk on my desktop. I just sent you a copy

Sent from my BlackBerry
  Original Message
From: Christopher R. Hawks
Sent: Tuesday, December 31, 2019 7:37 PM
To: coco at maltedmedia.com
Reply To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] 2 Meg memory problem


On Wed, 1 Jan 2020 00:18:17 +0000 (UTC)
Mark Marlette <mmarlette at frontiernet.net> wrote:

> Chris,
> Using your example, my current setup is EOU beta3.
> No issues
> using wcreate /w3 -s=8 0 0 40 24 1 0 0 shell i=/w3&
> can clear and do a dir and it operates fine
> do the above but with /w4 and -s=6
> same works fine here.
> Have you run stress12.bin to verify memory / mmu integrity?
> Regards,
> Mark Marlette
>  http://www.cloud9tech.com
> mark at cloud9tech.com
> mark at gamecamaddict.com
>
>    On Tuesday, December 31, 2019, 05:50:26 PM CST, Christopher R.
> Hawks <chawks at dls.net> wrote:
>  On Tue, 31 Dec 2019 21:46:40 +0000 (UTC)
> Mark Marlette <mmarlette at frontiernet.net> wrote:
>
> > Chris
> > Can you please provide the exact test case and I will try and
> > duplicate it here. Thanks
> > Mark
> >
> > Sent from Frontier Yahoo Mail on Android
> > 
> >  On Tue, Dec 31, 2019 at 3:10 PM, Christopher R.
> > Hawks<chawks at dls.net> wrote: I'm seeing a strange problem with my
> > CoCo3 running a Cloud9 2 Meg memory board.
> >
> >    When I searched online for similar problems, I found a message
> > in the CoCo facebook group describing something similar. BUT, the
> > problem I'm seeing is only with screen types 7 and 8 running under
> > NitrOS9 (at double speed). (NitrOS-9 updated yesterday) I can
> > create and use screens up to type 6 (16k of memory), but screen
> > types 7 and 8 (32k of memory) crash the system. Even a 'wcreate /w1
> > -s=8 0 0 40 24 1 0 0' from the command line crashes the system.
> >
> >    If I POKE &HFF9B,&H80 (disable 2 meg) before booting, the bigger
> > screens work fine.
> >
> >    Any ideas, suggestions, or guesses? I need 320x240 in 8 colors.
> >
> > Thanks!!
> >
> > Christopher R. Hawks
> > HAWKSoft
>
> Mark (and all):
>
>    Simplest case:
>
> 1) boot NitrOS-9
> 2) enter 'wcreate /w1 -s=8 0 0 40 24 1 0 0' at the command prompt.
> 3) NitrOS-9 crashes.
>
>    If you use -s=6 or less for the screen type, NitrOS-9 doesn't
> crash and you can start a shell (or program) in the window named
> (/w1).
>
>    Happens with an old version of NitrOS-9 (3.3.0 beta from 2014),
> the latest HG pull of NitrOS-9, and the latest EOU (use /w3, /w1
> and /w2 are already in use).
>
>
> Christopher R. Hawks
> HAWKSoft

    I'm reasonably sure that I did. I'd run it again if I knew where to
find it. It took 2 weeks of looking in boxes to find my SDC after the
move. Is it available somewhere?


Christopher R. Hawks
HAWKSoft
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