[Coco] quick dw hdb-dos question

[Bill Pierce]

On my hdbdw3cc3.rom in my fd-502, I can poke it off, but as soon as I do I/O it's back on. It has to be on for regular DW or it will run at half baud on disk reads or it will fail in dw4 as it's fixed  baud is not auto-adjustable if the baud changes.... safty precaution :-)
One intstruction after dw i/o would turn it back off for a gaming rom. Have it default to off, since it already does auto on for I/O and add "clr $ffd8" before the return from the i/o.
 

Bill Pierce
"Today is a good day... I woke up" - Ritchie Havens
 

My Music from the Tandy/Radio Shack Color Computer 2 & 3
https://sites.google.com/site/dabarnstudio/
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E-Mail: ooogalapasooo at aol.com


 
 
-----Original Message-----
From: David Ladd <dladd at realmspire.com>
To: Bill Pierce <ooogalapasooo at aol.com>; CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Wed, Dec 24, 2014 11:46 pm
Subject: Re: [Coco] quick dw hdb-dos question


Bill,

I personally not sure what the serial version of the DW3 for CoCo3 did
for its routines on all I/O for the CoCo3's high speed operation.

I know for the emulators I just by default used the CoCo2 version of
the becker ROM.

The problem is here is Robert is using the HDBDOS 1.1D DW3 CoCo3 which
is the original DW3 ROM for the CoCo3.  He would have to either
replace the EPROM or if it allows him would need to poke a value to
address &HFFD8 to attempt to turn off the high speed.  Only way to
test it is to try a operation and see if it turns the high speed back
on.  If it does then sadly his only choice would be is to get a EPROM
with the CoCo2 HDBDOS 1.1D DW3 CoCo2 or the current 1.4 DW3 CoCo2.

At this point the only thing I could really share to Robert that was a
quick try was the POKE &HFFD8,0 to attempt to see if the high speed
stays off. *shrug*
--
David Ladd
--



On Wed, Dec 24, 2014 at 6:43 PM, Bill Pierce via Coco
<coco at maltedmedia.com> wrote:
>
> David, but doesn't hdbdos reset the poke on almost any kind of I/O access?
> That's why you had to make another becker rom for games :-)
> We need the same for dw rom (really a build for all roms... gamer versions)
> Remember the becker roms are
> hdbdw3bc3 - normal high speed rom
> hdbdw3bck - no poke for games (only goes into high speed for I/O)
>
>
> Bill Pierce
> "Today is a good day... I woke up" - Ritchie Havens
>
>
> My Music from the Tandy/Radio Shack Color Computer 2 & 3
> https://sites.google.com/site/dabarnstudio/
> Co-Contributor, Co-Editor for CocoPedia
> http://www.cocopedia.com/wiki/index.php/Main_Page
> E-Mail: ooogalapasooo at aol.com
>
>
>
>
> -----Original Message-----
> From: David Ladd <dladd at realmspire.com>
> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
> Sent: Wed, Dec 24, 2014 7:34 pm
> Subject: Re: [Coco] quick dw hdb-dos question
>
>
> You can POKE &HFFD8,0
> --
> David Ladd
> --
>
>
>
> On Wed, Dec 24, 2014 at 1:11 PM, Robert Hermanek
> <rhermanek at centurytel.net> wrote:
>> Yeah, I'm aware of the other versions, but this is my eprom, and I'm real
>> spoiled with just hitting the power switch.  Was hoping there might be a way
>> to "bump" DW into coco2 mode after it is loaded and running, when I feel
>> like it... don't always want my coco running at high speed, seems to get
>> hot.
>>
>> On 12/24/2014 12:49 PM, Bill Pierce via Coco wrote:
>>>
>>> Robert, There's a Rom for the Coco 2 that doesn't use the high speed poke,
>>> but you'll only get half the baud rate for DW. It should work in a Coco 3
>>> just fine. There may even be a "gamer's rom" for the Coco 3 without the high
>>> speed poke ( couldn't find one), I know there is for the Becker port.
>>> This probably needs to be done as it was to the becker port rom.
>>>
>>>
>>
>>
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