[Coco] Ownership of NitOS-9

Nick Marentes nickma2 at optusnet.com.au
Wed Nov 5 16:28:07 EST 2014


On 6/11/2014 7:12 AM, Darren A wrote:
> On Wed, Nov 5, 2014 at 1:24 PM, Nick Marentes <nickma2 at optusnet.com.au>
> wrote:
>
>   <snip>
>> Right from the get up and go, I 've run into problems regarding /d0 /sd0
>> (I'm using the SDC build). I was following the manuals starting at chapter
>> 1 and found that both /d0 and /sd0 access the same directories and I was
>> wondering why, after a few directory reads, I kept getting ERROR #247 and
>> couldn't read any drive.
>>
>> I have since learned that I should only be using /sd0 (an LBA device) and
>> that /d0 should not have even read the /sd0 device.
>>
>> This is using the SDC build of NitOS-9 and is a problem of a "bug" in this
>> version and a lack of documentation.
>>
>
>
> It sounds like a firmware update for the CoCo SDC is needed. I guess a
> mechanism should be added to allow the OS9 driver to lock out the
> controller's floppy emulation capability so that /d0 and /d1 aren't
> recognized.
>
> Darren
>

No! Can you make them both work?

I find that I need to mount the /sd0 and be able to access a normal dsk 
image in the second drive.

I copy things from /d1 to /sd0.

Or am I doing this wrong?

I want to eventually copy the files off my standard MultiVue 40 track 
DSK to the /SD0. Or does this use /SD1?

If your planning an update, how about the ability to set a startup video 
mode and colorset (Width 80/40)?

What about an AUTOEXEC feature on startup (run a predefined program on 
start).

And if you're really game... add a command switch between 225 and 192 
scanlines (40/80x27 text, 320/640x225 graphics).

(See what happens when you give me an inch? I take a mile!)

Nick




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