[Coco] Re: OS9 Getclock

[Boisy G. Pitre]

John,

I believe Rodney is talking about the DSKINI/RETRIEVE commands, not 
accessing the disk from the emulator.

Please tell me if I'm wrong, but I don't believe you can access the 
physical floppy disk as /D0, /D1, etc. from any emulator that is 
running NitrOS-9.

Boisy

On Jul 14, 2004, at 7:31 PM, John Donaldson wrote:


> Rodney,

>    At last a explanation of what is going on. I would have thought 

> that John would have fixed that

> in his 6309 version. Speaking of John, I have not seen him on the list 

> in quite a while. Has he

> disappeared again??  JOHN ARE YOU OUT THERE!!!!!!!!!

>

> John Donaldson

>

>

> Rodney V Hamilton wrote:

>

>> In article <40F58406.3040906 at charter.net>, 

>> jadonaldson-xwVYE8SWAR3R7s880joybQ at public.gmane.org says...

>>

>>> Boisy,

>>>  Thanks for the reply. It feels great getting back into NITROS9 

>>> again. I now have both a laptop and

>>> a desktop running the May 14, 2004 release.

>>>   I still can not get NITROS9 to format or read my 360K drive or the 

>>> 720K drive. Both DSKINI.exe and RETRIEVE.exe under MSDOS works with 

>>> the drives. I have been able to use DSKINI to make both a 40T and a 

>>> 80T boot disk and then used RETRIEVE to copy them to a DSK and the 

>>> DSK's do boot on the emulator. I understand that IBM thinkpads have 

>>> a floppy problem,

>>> but the desktop is a IBM 486 DX2. It uses a standard floppy cable, 

>>> so I would expect it be

>>> compatible. I am running DOS 6.2 on the desktop.

>>>

>>> John Donaldson

>>>

>>

>> John, if your descriptor is set correctly, you should be able to 

>> access

>> the 720K drive with no problems.  The 360K drive may not work properly

>> due to a flaw in the emulator's disk I/O code in which it treats a 

>> 360K

>> drive the same as a 1.2M drive and assumes it also uses a 360 rpm 

>> speed

>> instead of the actual 300 rpm rate.  Amardeep S Chana pointed this out

>> in a Jan 5 2001 post to bit.listserv.coco and included a workaround to

>> get the emulator to use the correct speed by setting the BIOS type for

>> that drive to 720K.  (see note on Jeff Vavasour's webpage, (or google

>> for "Re: Re: Emulator file retrieval" in bit.listserv.coco)

>>

>> On 26 Jan 2003, Amardeep posted a source code patch to 

>> bit.listserv.coco

>> that might fix the problem.  Maybe someone with knowledge of 8x86 code

>> could try it out and post a binary patch to the emulators - it looks 

>> to

>> me like the revised code would be the same size, so we should be able 

>> to

>> do a "modpatch-style" debug/hex edit fix.  (the subject thread was

>> "Reguarding Jeff's TRS-80 COLOUR Emulator retrieving coco formatted 

>> disks"

>> and Amardeep's reply+patch info was dated 2003-01-26 09:54:26 PST)

>>

>> Sorry I can't help more at this time but I'm fixing a zapped 

>> filesystem

>> on my main email/news/www system (power outage from a Florida 

>> lightning

>> storm during disk I/O) but I hope to be back up sometime tomorrow.

>>

>> Rodney V Hamilton

>>

>>

>>

>>

>

>

>

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