Search found 125 matches

by Pernod70
Wed Mar 18, 2026 10:30 pm
Forum: Dragon General
Topic: FarmFax batery for Memory card
Replies: 16
Views: 1305

Re: FarmFax batery for Memory card

I may be wrong, but it looks to me that POKE 65344,1 pages in the cartridge memory and POKE 65344,0 restores the original memory area. Am tempted to agree, so that's &FF40 (for readability), and presumably just switches between the 16K ROM and RAM. The issue 2 board has 6K (but can take upto 16K) w...
by Pernod70
Tue Mar 17, 2026 7:49 pm
Forum: Dragon General
Topic: FarmFax batery for Memory card
Replies: 16
Views: 1305

Re: FarmFax batery for Memory card

robcfg wrote: Tue Mar 17, 2026 7:28 pm Fortunately, we have scanned the Agro Systemes cartridge which is the same as the FarmFax one (it even says FarmFax on the PCB... :lol: ).
Do we know how the RAM is accessed? And is there a ROM dump of this French version?
by Pernod70
Thu Jan 22, 2026 8:27 pm
Forum: Dragon General
Topic: Dragon Meetup - Spring 2026!
Replies: 6
Views: 16032

Re: Dragon Meetup - Spring 2026!

Any news on a date yet, as March is only a few weeks away!
by Pernod70
Wed Jan 31, 2024 4:30 pm
Forum: Dragon General
Topic: Prism 1000 modem and serial cart
Replies: 30
Views: 55026

Re: Prism 1000 modem and serial cart

Is it difficult to set up? Not really, just need to specify the address of the Telstar stream: mame dragon32 -cart prestel -bitb socket.glasstty.com:6502 The current Prestel (serial device) cartridge just needed a tweak to set the Rx/Tx clocks, they're hardwired using a ripple counter to 1200/75 ba...
by Pernod70
Wed Jan 31, 2024 12:41 pm
Forum: Dragon General
Topic: Prism 1000 modem and serial cart
Replies: 30
Views: 55026

Re: Prism 1000 modem and serial cart

Apologies for digging up an old topic, but this combination of ROM, serial cartridge, and modem will soon be emulated in MAME, and can fully access the online Viewdata system Telstar!
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by Pernod70
Sun Nov 26, 2023 9:36 pm
Forum: Uploads
Topic: ATV's Curso autodidáctico de informática BASIC tapes
Replies: 3
Views: 49260

Re: ATV's Curso autodidáctico de informática BASIC tapes

robcfg wrote: Sun Nov 26, 2023 2:50 pm They've been there for some time now, my friend ;)

https://archive.worldofdragon.org/index ... tica_BASIC
Thanks, even with a direct link it took awhile to find a way to navigate to it from the main menu :lol:
by Pernod70
Sun Nov 26, 2023 2:00 pm
Forum: Uploads
Topic: ATV's Curso autodidáctico de informática BASIC tapes
Replies: 3
Views: 49260

Re: ATV's Curso autodidáctico de informática BASIC tapes

So is this 12 tapes? Can you post photos of them for reference, of each tape side, so they can be labelled appropriately.
by Pernod70
Thu Aug 24, 2023 1:37 pm
Forum: Dragon General
Topic: The Dragon Meetup returns to Cambridge! 7th/8th Oct
Replies: 5
Views: 31243

Re: The Dragon Meetup returns to Cambridge! 7th/8th Oct

I was intending on attending either the Dragon Meetup or Retro Fest, but as they're a month apart will likely attend both :D
robcfg wrote: Wed Aug 23, 2023 10:12 pm I'm already looking for tickets! 8-)
Would be good to see you again.
by Pernod70
Fri Dec 02, 2022 3:58 pm
Forum: Dragon General
Topic: MAME Emulation
Replies: 118
Views: 1280435

Re: MAME Emulation

pser1 wrote: Fri Dec 02, 2022 3:56 pm Has this already been added to a new MAME version?
I am using right now MAME240 and I have seen somewhere that there is a 250 version, but doesn't seem to contain this registers
It was only submitted today, so will be in the 0.251 release due on the 28th Dec.
by Pernod70
Fri Dec 02, 2022 3:03 pm
Forum: Dragon General
Topic: MAME Emulation
Replies: 118
Views: 1280435

Re: MAME Emulation

pser1 wrote: Thu Nov 24, 2022 11:53 pm Anyway, no need to rush. By now the games I have converted do not require horizontal scrolling at all!
Looks like someone has now implemented this, see https://github.com/mamedev/mame/commit/ ... 7c6bbc1e55