Search found 1702 matches

by robcfg
Sun Mar 29, 2026 12:13 pm
Forum: Dragon General
Topic: Serial Numbers
Replies: 18
Views: 89866

Re: Serial Numbers

I checked the 200E I scanned for the archive and saw the same "Model Dragon 200" instead of 200E and with the highest serial number around, so the 200/200E seem to share the same pool of serial numbers, but some of the 200s were upgraded to 200Es. I used the formula from the German Tank problem on W...
by robcfg
Mon Mar 23, 2026 11:29 pm
Forum: Dragon General
Topic: Dragon Meetup - 28th / 29th March
Replies: 10
Views: 3825

Re: Dragon Meetup - 28th / 29th March

I won't be attending, unfortunately. Turns out, I've been unemployed since August last year and getting a new job is proving to be quite hard. So, long story short, with no money to spend and with lots of interview during these next weeks, I'll be missing this one too. Have fun and take some nice pi...
by robcfg
Mon Mar 23, 2026 10:59 am
Forum: Uploads
Topic: Budget Previsionnel
Replies: 1
Views: 858

Re: Budget Previsionnel

Not an upload per se, but I took myself to examine the Budget Prévisionnel cartridge, created a diagram of the logic and extracted the program. :mrgreen:
by robcfg
Thu Mar 19, 2026 12:25 am
Forum: Dragon General
Topic: FarmFax batery for Memory card
Replies: 16
Views: 1189

Re: FarmFax batery for Memory card

I think mine is the french version of the Financial Planner + Memory.

Interestingly enough, the rom that looks definitely equivalent to Budget Prévisionnel is the one from Cash Planner, which does not appear in the price list, or it appears as Financial Planner instead.
by robcfg
Wed Mar 18, 2026 10:47 pm
Forum: Dragon General
Topic: FarmFax batery for Memory card
Replies: 16
Views: 1189

Re: FarmFax batery for Memory card

The program on the cartridge rom, copies the contents into the Basic memory area and the RUNs the program, so after that the cartridge rom is useless and can be swapped with the cartridge ram.

I don't have any other cartridge and I don't know if the one that Pere has has been dumped.
by robcfg
Wed Mar 18, 2026 8:26 pm
Forum: Dragon General
Topic: FarmFax batery for Memory card
Replies: 16
Views: 1189

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.
by robcfg
Wed Mar 18, 2026 7:54 pm
Forum: Dragon General
Topic: FarmFax batery for Memory card
Replies: 16
Views: 1189

Re: FarmFax batery for Memory card

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? I've attached the decoded BASIC program, in case anyone would like to take a...
by robcfg
Wed Mar 18, 2026 1:10 pm
Forum: Dragon General
Topic: FarmFax batery for Memory card
Replies: 16
Views: 1189

Re: FarmFax batery for Memory card

These pictures are very good, thanks a lot!
by robcfg
Wed Mar 18, 2026 2:16 am
Forum: Dragon General
Topic: FarmFax batery for Memory card
Replies: 16
Views: 1189

Re: FarmFax batery for Memory card

Ok, here we go! Do we know how the RAM is accessed? And is there a ROM dump of this French version? By the looks of the rom, it seems to have a small piece of code to copy the rom contents to the BASIC program area and run it. So I can extract the BASIC program and see how it access the ram. Back in...
by robcfg
Wed Mar 18, 2026 2:09 am
Forum: Uploads
Topic: Budget Previsionnel
Replies: 1
Views: 858

Budget Previsionnel

The conversation about the battery for the FarmFax ROM/RAM Memory Pack made me realise that I had uploaded the pictures of the box and the PCB to the Budget Previsionnel page, but not the rom dumps or the manual... To restore balance to the universe, here are the missing bits :mrgreen: Cheers, Rob