Search found 1474 matches

by zephyr
Tue Nov 24, 2009 12:25 am
Forum: Dragon General
Topic: Extra PCB fitted to Dragon 32
Replies: 14
Views: 11706

Re: Extra PCB fitted to Dragon 32

Thanks for the offer Phill, but I don't currently have access to a decent digital (or other) camera.
by zephyr
Tue Nov 24, 2009 12:22 am
Forum: Dragon General
Topic: Stone Raider II source code
Replies: 8
Views: 5228

Re: Stone Raider II source code

Thanks Rolf! :)
by zephyr
Tue Nov 24, 2009 12:15 am
Forum: Uploads
Topic: Keyboard auto-repeat for Dragon and Coco
Replies: 0
Views: 3766

Keyboard auto-repeat for Dragon and Coco

Here's a great little keyboard auto-repeat routine by Steve Woolham. He sent me this little gem via e-mail the other day and asked me to post it here after I had tested it. The routine works perfectly and its 100% compatible with both Dragon and CoCo machines. I have included a listing of the BASIC ...
by zephyr
Thu Aug 13, 2009 3:20 pm
Forum: Dragon General
Topic: Cumana disk system
Replies: 10
Views: 6712

Re: Cumana disk system

Thanks for the posted CumanaDOS ROM but I would prefer a copy from your original. The posted copy has been around on the internet for a few years now and I suspect it to be an incomplete copy. That's why I was asking for the ROM dump in the first place.
by zephyr
Thu Aug 13, 2009 2:36 am
Forum: Dragon General
Topic: Cumana disk system
Replies: 10
Views: 6712

Re: Cumana disk system

Long time ago that I booted everything. What poke did I need so the cartridge wouldn't load automatically? I remember also to csavem from adres x to y, z Do you have the params? The following params will save a copy of the entire cartridge area from $C000 TO $FEFF. You shouldn't need to disable DOS...
by zephyr
Wed Aug 12, 2009 11:03 pm
Forum: Dragon General
Topic: Cumana disk system
Replies: 10
Views: 6712

Re: Cumana disk system

Yes, that's exactly what I need. :D
by zephyr
Wed Aug 12, 2009 11:00 pm
Forum: Uploads
Topic: Cowboy
Replies: 9
Views: 7293

Re: Cowboy

Thank you for the games! :)
by zephyr
Tue Aug 11, 2009 10:16 pm
Forum: Dragon General
Topic: EPROM Programmer?
Replies: 10
Views: 8593

Re: EPROM Programmer?

Can anyone make out the number on those chips? It looks like MCM687 something?

What about a 24 to 28 pin socket adapter?
http://cgi.ebay.ca/ws/eBayISAPI.dll?Vie ... 0399245623

I didn't know that such things existed. :o
by zephyr
Tue Aug 11, 2009 12:52 am
Forum: Dragon General
Topic: EPROM Programmer?
Replies: 10
Views: 8593

Re: EPROM Programmer?

Thank you!

What chips were used for the Dragon 32 prototype? Could these be D32 compatible EPROM chips?
http://dragondata.worldofdragon.org/tec ... rd-top.jpg
by zephyr
Sun Aug 09, 2009 6:08 pm
Forum: Dragon General
Topic: Extra PCB fitted to Dragon 32
Replies: 14
Views: 11706

Extra PCB fitted to Dragon 32

I have a Dragon 32 with an Issue 5A mainboard (16x16) and a MK3, Issue 4 power board. The mainboard has an extra little PCB which is plugged directly into the socked where the SAM chip usually sits. The top of the PCB is comprised of a socketed SAM chip (SN74LS783N), two smaller chips (SN74LS74AN, S...