Search found 142 matches

by bluearcus
Sun Jan 03, 2021 2:04 pm
Forum: Dragon Hardware
Topic: Problems with DOS using an Y-type connection
Replies: 42
Views: 35437

Re: Problems with DOS using an Y-type connection

That difference in the read loop would shorten the time the PIA line and FIRQ were asserted for by a few cycles. And as I mentioned, it's already pulled low a lot more than it is with a standard DOS cartridge timing (from chatting with Darren before about Dragon OS9 boot unreliability). From some ol...
by bluearcus
Fri Jan 01, 2021 9:36 pm
Forum: Software Requests
Topic: Jaysoft - Taipan
Replies: 7
Views: 13547

Re: Jaysoft - Taipan

Right, have done some trawling through some old disks with the aid of my greaseweazle over the last few days and have managed to find a copy of the game on an old disk which may well be the Dragon version shipped by Jaysoft.

It's attached below.
TAIPAN.CAS
Jaysoft - Taipan (from disk)
(8 KiB) Downloaded 635 times
by bluearcus
Thu Dec 31, 2020 12:17 pm
Forum: Dragon Hardware
Topic: Problems with DOS using an Y-type connection
Replies: 42
Views: 35437

Re: Problems with DOS using an Y-type connection

I don't think the clock module has anything to do with it... that's late on in the boot process, and the crashes appear to be almost immediately after loading the boot track, or during the boot module's attempt to load the OS9Boot file. But I have observed very very similar crashes with all disk boo...
by bluearcus
Wed Dec 30, 2020 11:27 pm
Forum: Dragon Hardware
Topic: Problems with DOS using an Y-type connection
Replies: 42
Views: 35437

Re: Problems with DOS using an Y-type connection

I have an upgraded 2A 5V power setup as well... and it seems to improve reliability of OS9 CoCoSDC booting, but it definitely doesn't categorically fix it. A cold Dragon 64 is poor, a Dragon 32(64) is generally better, and the machines improve as they warm up. On those lines, I've done some recappin...
by bluearcus
Wed Dec 30, 2020 8:21 pm
Forum: Dragon Hardware
Topic: Problems with DOS using an Y-type connection
Replies: 42
Views: 35437

Re: Problems with DOS using an Y-type connection

This feels to me like the same SDC 'I wonder, is it a power issue' problem which frequently prevents OS9 booting on Dragon 64s...

The fact the EH DragonDOS and SuperDOS E6 seem to be hugely more reliable gives some additional testing options to try.
by bluearcus
Mon Dec 28, 2020 7:14 pm
Forum: Uploads
Topic: FEdit v1.01 released to public domain
Replies: 3
Views: 5657

Re: FEdit v1.01 released to public domain

Still the best text editor ever for the Dragon! Thanks Geir.
by bluearcus
Sat Dec 26, 2020 11:13 pm
Forum: Software Requests
Topic: Jaysoft - Taipan
Replies: 7
Views: 13547

Re: Jaysoft - Taipan

Wow, that is some cool reverse engineering! I'd seen the Portuguese variant existed, but using the Spectrum versions from Jaysoft to allow it to be translated back has produced something that's exactly as I remember it. Winning is broken though and the Debt collectors definitely aren't active yet......
by bluearcus
Tue Dec 22, 2020 12:11 am
Forum: Software Requests
Topic: Jaysoft - Taipan
Replies: 7
Views: 13547

Jaysoft - Taipan

Has anyone ever seen a copy of this? The old TRS-80 Model 1 trading game it was advertised in early Popular Computing Weeklies... a google will turn it up. It doesn't seem to be on any of the software lists, perhaps because Jaysoft didn't advertise in the kosher Dragon Press? I had a (probably hooky...
by bluearcus
Wed Dec 02, 2020 7:55 pm
Forum: Discuss This Site
Topic: Dragon 64 ROM download wrong...
Replies: 3
Views: 10793

Re: Dragon 64 ROM download wrong...

There's more than one version of the D64 rom as well, we discovered...
by bluearcus
Wed Dec 02, 2020 7:54 pm
Forum: Software Requests
Topic: New Dimension Software - 3D Graphics
Replies: 3
Views: 9691

Re: New Dimension Software - 3D Graphics

Aha, nice! Thanks.

Does the inlay give any hints for the keyboard? Number keys seem to do some rotating / translating etc and one of them exits.