Search found 366 matches

by tautology
Sun Jun 24, 2018 4:22 pm
Forum: adventures
Topic: Search for the Lost Orb
Replies: 14
Views: 804

Re: Search for the Lost Orb

Interesting - it's not one I've heard of - I can add it to CASA.
by tautology
Wed May 23, 2018 8:14 pm
Forum: adventures
Topic: Adventure Soft / Scott Adams recommendations please
Replies: 22
Views: 1134

Re: Adventure Soft / Scott Adams recommendations please

The database system was originally written in TRS-80 BASIC and published in a magazine. IIRC only Adventureland and Pirate Adventure was in this format. Later games were coded in machine code, but the database format was unchanged until QP3. The engine was cloned by Brian Howarth, which led to the M...
by tautology
Sat Apr 28, 2018 10:39 pm
Forum: adventures
Topic: Island of Xaan by Robico - 64k version ??
Replies: 1
Views: 340

Re: Island of Xaan by Robico - 64k version ??

Bearing in mind the standard version of Island of Xaan has 8 KB of unused memory; I'd expect something special, like graphics.

(Maybe not quite 8KB on the Electron as it doesn't have mode 7.)
by tautology
Thu Mar 29, 2018 1:30 pm
Forum: adventures
Topic: Unfinished Text Adventures
Replies: 72
Views: 5465

Re: Unfinished Text Adventures

Newsflash - in August 87's Electron User Pendragon column Robico announced that due to unprecedented demand for the re-released version of Magus' Village of Lost Souls, Blazing Star will not now be released until the Autumn. Stick with me on this one, I'll hopefully find further clues later on as t...
by tautology
Fri Feb 02, 2018 7:24 pm
Forum: software: other
Topic: Read Word Wise Plus files on PC
Replies: 15
Views: 883

Re: Read Word Wise Plus files on PC

I have a half written Interword convertor somewhere, that I could probably mangle to do Wordwise.

One of these days I ought to properly script these up to convert WW/View/IW to HTML (or similar).
by tautology
Fri Jan 19, 2018 4:40 pm
Forum: other vintage computer hardware, software and games
Topic: Reading EPROMS
Replies: 10
Views: 646

Re: Reading EPROMS

Oh the good news is that once I replaced the Oric-1's voltage regulator, the computer works. Woo! It's only taken me five years to get to this point...
by tautology
Fri Jan 19, 2018 3:23 pm
Forum: other vintage computer hardware, software and games
Topic: Reading EPROMS
Replies: 10
Views: 646

Re: Reading EPROMS

I know how OE and CE are meant to be used, but I found following the flow in the datasheet brought back random results; forcing them permanently to ground worked every time. I've just powering the EPROM straight off 3.3V and it works perfectly. This means I can revisit it an make a setup that will a...
by tautology
Thu Jan 18, 2018 8:33 pm
Forum: other vintage computer hardware, software and games
Topic: Reading EPROMS
Replies: 10
Views: 646

Re: Reading EPROMS

According to the datasheet, you as well as Vcc and GND, you have Vil which is -0.1 to 0.8 and Vih which is 2 to Vcc+1. Vpp needs to be about 24V for programming; I can't do that from a Pi (well not without frying it). I may try it with VCC being 3.3 to see whether I can just power it at that voltage...
by tautology
Thu Jan 18, 2018 3:16 pm
Forum: other vintage computer hardware, software and games
Topic: Reading EPROMS
Replies: 10
Views: 646

Re: Reading EPROMS

Are you planning to use any kind of level shifters? If not, you could possibly damage the Pi, all of it's GPIO pins work with 3.3V levels. In testing the O0-7 pins had the same voltage as the A0-12 pins; so it bounced back 3.3V to me. But it's a good point; and I probably ought to look at a compone...
by tautology
Thu Jan 18, 2018 7:32 am
Forum: programming
Topic: Graphic Adventure Creator (GAC) programming
Replies: 44
Views: 2495

Re: Graphic Adventure Creator (GAC) programming

Nice detective work there. The CPC version contradicts itself:
gac.png
Looks like I'll need to change my code back! Damn 35 year old bugs...
by tautology
Wed Jan 17, 2018 10:01 pm
Forum: other vintage computer hardware, software and games
Topic: Reading EPROMS
Replies: 10
Views: 646

Reading EPROMS

After a bit of mucking around trying to resurrect a dead Oric-1; to prove that the EPROM was fine, I coded an EPROM reader in python (interfacing to a Raspberry Pi). This was actually a whole lot easier than I expected; the most complex bit was getting the 27 different wires into the right places. A...
by tautology
Wed Jan 17, 2018 9:48 pm
Forum: programming
Topic: Graphic Adventure Creator (GAC) programming
Replies: 44
Views: 2495

Re: Graphic Adventure Creator (GAC) programming

Btw, Stardot-user tautology has written a GAC-decompiler/interpreter called "grackle" in C , and he's found that his interpreter somehow has the same bug that I discovered in Beeb GAC!: https://github.com/tautology0/grackle/issues/1#issuecomment-358220683 :?: Yeah; after a while of digging back thr...
by tautology
Fri Jan 12, 2018 7:46 pm
Forum: software: other
Topic: Adventure games: written in assembler? What compression?
Replies: 6
Views: 644

Re: Adventure games: written in assembler? What compression?

I've been extracting stuff from Text Adventures for decades. Some of my code is on my github page which includes Robico, Adventuresoft and the BBC Quill: https://github.com/tautology0/textadventurestuff https://github.com/tautology0/grackle https://github.com/tautology0/ascape I'm not very good at d...
by tautology
Thu Dec 28, 2017 12:15 am
Forum: adventures
Topic: Retro Gamer Adventure Reviews
Replies: 8
Views: 1140

Re: Retro Gamer Adventure Reviews

Spoilers be here - this is that dumped output; which looks pretty sane. But it's been decompiled so I would only use it for hints.
alien.txt
Decompile of Alien from Outer Space
(50.35 KiB) Downloaded 32 times
by tautology
Wed Dec 06, 2017 11:38 pm
Forum: adventures
Topic: Retro Gamer Adventure Reviews
Replies: 8
Views: 1140

Re: Retro Gamer Adventure Reviews

It's definitely Graphic Adventure Creator; my GAC dumper tool (https://github.com/tautology0/grackle) makes a semi-decent attempt to decompile it but it isn't perfect as it won't play.
by tautology
Wed Nov 29, 2017 9:13 pm
Forum: off-topic
Topic: Which soldering iron?
Replies: 66
Views: 2959

Re: Which soldering iron?

Don't overlook the importance of solder quality. I currently use Kester solder, it is NOS and lead / tin with an internal rosin core. I also have some el-cheapo eBay rubbish, which is not lead based and may or may not have flux (might be coated instead of cored). This stuff is CRAP, it does not flo...
by tautology
Wed Nov 29, 2017 12:15 am
Forum: stardot.org.uk
Topic: https certificates?
Replies: 86
Views: 4548

Re: https certificates?

As you've decided to patronise, I'm not going to respond to you anymore.
by tautology
Tue Nov 28, 2017 11:29 pm
Forum: off-topic
Topic: Which soldering iron?
Replies: 66
Views: 2959

Re: Which soldering iron?

At work we have use a Metcal soldering station (near £200) which is really easy to use, especially for SMD work and tacking wires to debug pads. At home I generally use a cheap Chinese station, which I think I was lucky on getting a decent one (IIRC it was around the £50 mark). In my hardware toolki...
by tautology
Tue Nov 28, 2017 11:21 pm
Forum: stardot.org.uk
Topic: https certificates?
Replies: 86
Views: 4548

Re: https certificates?

I don't want to really get into an argument about this; but you seem to be expecting more from certificate integrity than it was ever designed to do. The certificate is prove that the server (or optionally the client) is who it says it is i.e. that stardot.org.uk is stardot.org.uk and not stardto.or...
by tautology
Mon Nov 27, 2017 11:41 pm
Forum: stardot.org.uk
Topic: https certificates?
Replies: 86
Views: 4548

Re: https certificates?

Cools thanks!
by tautology
Mon Nov 27, 2017 7:02 pm
Forum: stardot.org.uk
Topic: https certificates?
Replies: 86
Views: 4548

Re: https certificates?

It prevents the library or coffee shop, or their other patrons, from snooping your session and causing mayhem. If that's your only concern, use a VPN or Tor; no need for https at all. That's fundamentally missing the whole point of encryption - using Tor or a VPN you're just allowing people at the ...
by tautology
Mon Nov 27, 2017 8:58 am
Forum: stardot.org.uk
Topic: https certificates?
Replies: 86
Views: 4548

Re: https certificates?

+1 on this. As a person who works in the security industry; I recommend that every site is distributed over SSL where possible. SSL certificates are no longer stupidly expensive and can be obtain quite cheap, or even for free. It should only take about 30 minutes of time to configure the site to use...
by tautology
Thu Nov 02, 2017 11:19 am
Forum: adventures
Topic: Midge and the Robico Advanced Parser
Replies: 26
Views: 2232

Re: Midge and the Robico Advanced Parser

I plan to dive deeper into the code for the next post; but as this one took me a few weeks to write, it could take a while...
by tautology
Wed Nov 01, 2017 10:29 pm
Forum: adventures
Topic: Midge and the Robico Advanced Parser
Replies: 26
Views: 2232

Re: Midge and the Robico Advanced Parser

Starter blog post on disassembling Island of Xaan:
https://tautology.org.uk/blog/2017/11/0 ... d-of-xaan/
by tautology
Sun Oct 22, 2017 6:54 pm
Forum: off-topic
Topic: What is the average age on here??
Replies: 223
Views: 20221

Re: What is the average age on here??

I'm just the wrong side of 40; but we saw our first beeb in the last couple of years of primary school (only the one for the whole school) - though this was in deepest, darkest Yorkshire (full of inertia for change: I still remember doing maths exercises in £'s, shillings and pence, even though curr...
by tautology
Fri Oct 20, 2017 9:34 am
Forum: general
Topic: Beeb Spotting
Replies: 27
Views: 3112

Re: Beeb Spotting

Right, so this is a museum exhibit, given all these bits have labels on. So why would a fort show off a BBC Micro? Surely that's decades out of the way? Apparently it was used as a radar and weather station back in the 80s and this set up was showing what was used. The whole place was filled with v...
by tautology
Tue Oct 17, 2017 7:09 pm
Forum: general
Topic: Beeb Spotting
Replies: 27
Views: 3112

Re: Beeb Spotting

I found a beeb during our summer holiday in the Nothe fort in Weymouth. Bonus points for spotting the printing error.
20170721_114523.jpg
by tautology
Thu Sep 14, 2017 2:23 pm
Forum: community projects
Topic: Book: Assembly Language Programming for the BBC Micro
Replies: 11
Views: 1578

Re: Book: Assembly Language Programming for the BBC Micro

Nice, I have the original too; this means I can archive it away from that evil sunlight!
by tautology
Tue Sep 12, 2017 1:21 pm
Forum: adventures
Topic: Adventure International "Return to Pirate's Isle" PLUS Mystery Fun House and Pyramid of Doom
Replies: 22
Views: 2514

Re: Adventure International "Return to Pirate's Isle" PLUS Mystery Fun House and Pyramid of Doom

Had a look through my hard disc archive, and no such luck I'm afraid... We'll have to contact Arcadian to see which edition it is.
by tautology
Thu Sep 07, 2017 11:34 pm
Forum: adventures
Topic: Adventure International "Return to Pirate's Isle" PLUS Mystery Fun House and Pyramid of Doom
Replies: 22
Views: 2514

Re: Adventure International "Return to Pirate's Isle" PLUS Mystery Fun House and Pyramid of Doom

I had mystery fun house, but gave all my original tapes to Arcadian. I may have an electronic version on my home computer which I can't check 'til Monday.