Search found 268 matches
- Fri Jul 12, 2019 2:42 pm
- Forum: Hints and Tips
- Topic: Dragon MMC and AGD games
- Replies: 10
- Views: 28746
Re: Dragon MMC and AGD games
As your board has a 'special' DOS that uses some code from $E000 on to talk to the AVR, I am sure that we could reduce some 'not needed' DOS commands and fill this area with the code made to send/receive data via AVR. I would like to work on that 'mini-DOS' if you don't mind. Just will need the asm...
- Thu Jul 04, 2019 11:19 pm
- Forum: Dragon General
- Topic: Dragon Meetup 2019
- Replies: 24
- Views: 29132
Re: Dragon Meetup 2019
People on the FB group will already have seen this.....
Should be arriving mid to late afternoon on Friday, so deffo up fro food / beer on friday night, if anyone else will be in Cambridge.
Cheers.
Phill.
Should be arriving mid to late afternoon on Friday, so deffo up fro food / beer on friday night, if anyone else will be in Cambridge.
Cheers.
Phill.
- Thu Mar 28, 2019 11:18 am
- Forum: Dragon General
- Topic: Flex : dragon disk driver....
- Replies: 0
- Views: 7613
Flex : dragon disk driver....
Hi all,
Does anyone know if the Dragon disk driver source code is available for flex?
Cheers.
Phill.
Does anyone know if the Dragon disk driver source code is available for flex?
Cheers.
Phill.
- Fri Dec 28, 2018 8:22 pm
- Forum: Hints and Tips
- Topic: Dragon MMC and AGD games
- Replies: 10
- Views: 28746
Re: Dragon MMC and AGD games
Somthing to remember when comparing CoCoSDC and DragonMMC is that IIRC CoCoSDC emulates the floppy controller hardware, DragonMMC does not. In fact the early versions of DragonMMC had no disk support at all. DragonMMC has the following memory map when switched on, all in map 0 : $0000-$7FFF Normal 3...
- Thu Jul 19, 2018 9:31 am
- Forum: Dragon General
- Topic: Sick Dragon 32
- Replies: 36
- Views: 30154
Re: Sick Dragon 32
he also was working on an RGB board for the D32 so he should know how to resolve your issue. I was actually the one developing the RGB borard, though Bas was beta testing. Project was shelved as couldn't get it to work to my satisfaction, and board was a bugger to assemble. Prime on here knows him ...
- Fri Jul 13, 2018 7:34 am
- Forum: Dragon General
- Topic: Sick Dragon 32
- Replies: 36
- Views: 30154
Re: Sick Dragon 32
That sounds like one of the boards using "half good" 64K chips. Those are the easiest boards to upgrade to 64K.Vyper68 wrote: This issue 2 is really early too the date code for the chips are week 44 1982 there are only 8 OKI chips as well.
Cheers.
Phill.
- Thu Jun 21, 2018 9:11 pm
- Forum: Dragon Hardware
- Topic: DragonMMC Announcement.
- Replies: 65
- Views: 91143
Re: DragonMMC Announcement.
yeah was going to upload one, Simon any chance of getting .txt added to the list of allowed file extensions.sardine wrote:Hi Phill
is there a changelog ??
Cheers.
Phill.
- Tue Jun 19, 2018 9:13 am
- Forum: Dragon General
- Topic: MAME - Dragon 200-E
- Replies: 19
- Views: 23776
Re: MAME - Dragon 200-E
Excelent, thanks Rob.robcfg wrote:I’ll try to look at it during the weekend as I still have the machine with me.
Cheers.
Phill.
- Mon Jun 18, 2018 10:30 pm
- Forum: Dragon General
- Topic: MAME - Dragon 200-E
- Replies: 19
- Views: 23776
Re: MAME - Dragon 200-E
Sorry to resurrect this old thread..... I'm just trying to work out the complete circuit for the addon board so that we can maybe replicated it. I have it mostly traced from robcfg's scans, however there are a few things I can't work out..... Under the 6847 there are a pair of pads linked on the bot...
- Mon Jun 18, 2018 9:08 pm
- Forum: Dragon Hardware
- Topic: DragonMMC Announcement.
- Replies: 65
- Views: 91143
Re: DragonMMC Announcement.
Right the 1.1 Firmware is available from the DraonMMC wiki page :
http://www.archive.worldofdragon.org/in ... MMC_SDCard
Cheers.
Phill.
http://www.archive.worldofdragon.org/in ... MMC_SDCard
Cheers.
Phill.