[Coco] NitrOS-9 beginner

[Bill Pierce]

Robert, I agree. That sounds like it might be a Coco problem. Try reseating all socketed chips (GIME included). It sound like either the GIME or memory is not acting properly. The HSCREEN stuff uses page switching as does OS9 L2 (even in just booting). Since the page switching is basically the GIME switching memory banks, then I would suspect one of the two.
 

 


Bill Pierce
"Charlie stole the handle, and the train it won't stop going, no way to slow down!" - Ian Anderson - Jethro Tull

 

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-----Original Message-----
From: Robert Hermanek <rhermanek at centurytel.net>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Thu, Jul 9, 2015 3:41 pm
Subject: Re: [Coco] NitrOS-9 beginner


So... maybe my coco is getting flaky.  Using latest and greatest DW4 
server,
and the proper DW image, I try booting NitrOS and it hangs, or 
sometimes I get
the "FAILED" message.  And I do this five or six times.  
And finally, it
succeeds, and I make it to the prompt and all is well.

It put me in mind of
something I noticed ages ago:  One of my kids typed 
this program in, from the
coco3 extended basic book:

10 PCLEAR 8
20 FOR P=1 TO 8
30 PMODE 0,P
40 PCLS
50
LINE (128,0)-(138,10+(P-1)*15),PSET
60 CIRCLE (128,P*15),15
70 NEXT P
80 FOR P=1
TO 8:GOSUB 110:NEXT P
90 FOR P=7 TO 1 STEP -2:GOSUB 110:NEXT P
100 GOTO 80
110
PMODE 0,P
120 SCREEN 1,0
130 FOR T=1 TO 10:NEXT T
140 RETURN

And it animates a
crude yo-yo using page switching.  My coco3 does this 
for a while.  Then I see
flickers, sometimes a little garbage from 
32-col text screen in between page
switches, and then eventually the 
system hangs.

So, which part of my coco3 is
failing?  It is stock 6809 + cloud 9 512K 
upgrade (simm version), and I have
HDB-DOS loaded in a rs-232 pak, so it 
is running on the high-speed poke.  I'm
thinking my OS-9 booting issues 
are not OS-9 issues at all...

-RobertH


On
7/3/2015 5:48 PM, K. Pruitt wrote:
> Bypassing the floppy and booting straight
in to NitrOS-9 via drivewire 
> is going to be the easiest most direct
method.
>
> I'd save the boot floppy as a last option.
>
> ----- Original
Message ----- From: "Robert Hermanek"
> Sent: Friday, July 03, 2015 3:14 PM
>
Subject: Re: [Coco] NitrOS-9 beginner
>
>
>> Cool, thanks everybody.  If
tackling DW config + NitrOS is too much, 
>> I may begin with the (possibly
simpler) 35T disk image below.
>>
>> On 7/3/2015 4:44 PM, K. Pruitt wrote:
>>>
Yes, you got it.
>>>
>>> The image to use would be
>>>
>>>
nos96809l2v030300coco3_dw.dsk
>>>
>>> I do believe you will have to issue a
drive command or select HDBDOS 
>>> Translation under the Tools menu of
Drivewire. Someone knowledgeable 
>>> on HDB-DOS will have to comment on that.
Or since you already use 
>>> HDB-DOS you probably already know how to do
that.
>>>
>>> After you boot in to NitrOS-9 you can easily create boot disks in

>>> your floppy.
>>>
>>> But I've tossed a 35-track boot disk for you on drop
box in case you 
>>> need it.
>>>
>>>
https://www.dropbox.com/s/ew57u2pmj6cpnua/BOOT35T.DSK?dl=0
>>>
>>>
>>>
>>>
>
>


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