Search found 376 matches

by tautology
Sun Apr 14, 2019 7:26 pm
Forum: adventures
Topic: Search for the Lost Orb
Replies: 19
Views: 1725

Re: Search for the Lost Orb

Attached is a dump of the messages and rooms (it's not perfect as I didn't bother with punctuation and capitalisation). Plus the python code I used to dump in.
by tautology
Sun Apr 14, 2019 7:17 pm
Forum: hardware
Topic: Electron edge connectors
Replies: 3
Views: 178

Re: Electron edge connectors

Thanks; I mainly just want one for prototyping - I'm not expecting to make anything production ready any time soon (I'm a massive amateur at hardware).
by tautology
Wed Apr 10, 2019 11:45 pm
Forum: hardware
Topic: Electron edge connectors
Replies: 3
Views: 178

Electron edge connectors

I've been thinking about doing some experimentation with one of my elks and attaching it to custom hardware. I'd rather not solder directly to the edge connector, so as a few of you have made custom boards, is there a preferred model of edge connector I can rig up to a prototype?
by tautology
Wed Apr 10, 2019 11:43 pm
Forum: adventures
Topic: Search for the Lost Orb
Replies: 19
Views: 1725

Re: Search for the Lost Orb

Not really; it's pretty standard 6502 adventure code.
by tautology
Tue Mar 12, 2019 2:42 pm
Forum: adventures
Topic: Search for the Lost Orb
Replies: 19
Views: 1725

Re: Search for the Lost Orb

I randomly found this sitting on my desktop and have done a bit of reverse engineering on it - extracting all the messages and locations. That's the good new. The bad news is that there are absolutely no clues as to the author in the message base, and not much space in files to have a hidden signatu...
by tautology
Tue Mar 12, 2019 2:28 pm
Forum: development tools
Topic: Ghidra disassembler
Replies: 4
Views: 204

Ghidra disassembler

The IT security world (or at least the reverse engineering) has been playing en masse with NSA's ghidra (https://ghidra-sre.org) disassembler, an open source version disassembler and decompiler, similar to IDA pro. As it supports 6502, I had a go with it last night and with some mangling it comes ou...
by tautology
Tue Mar 05, 2019 9:15 pm
Forum: software: classic games
Topic: Does anyone remember this adventure game?
Replies: 12
Views: 594

Re: Does anyone remember this adventure game?

CASA only has 4: https://www.solutionarchive.com/list/pl ... %2Cdragon/
  • Blue Dragon
  • Dragon Adventure
  • Dragon Quest
  • Dragon's Tooth
by tautology
Wed Aug 08, 2018 10:31 pm
Forum: hardware
Topic: Trying to repair a couple of Electrons
Replies: 5
Views: 382

Re: Trying to repair a couple of Electrons

Thanks all; I have a couple of Electrons in a water proof tub in the garage which I think work, so I'll steal the ULAs from them.

I noticed that both non-working ULAs have totally different sockets for the same chip. Lack of parts on later Elks?
by tautology
Wed Aug 08, 2018 9:34 am
Forum: hardware
Topic: Trying to repair a couple of Electrons
Replies: 5
Views: 382

Trying to repair a couple of Electrons

I've been going to my stock of old computers to try and get things working, I've had some successes (one Oric resurrected), but I've got two Electrons that are being difficult as I suspect the ULAs are toast: The first one had a flaky power connected, which was due to the solder being dry and crack ...
by tautology
Sun Jul 29, 2018 11:43 pm
Forum: programming
Topic: Files created by OPENOUT
Replies: 6
Views: 927

Re: Files created by OPENOUT

I wrote a basic openup library years ago (my local drive has a date stamp on the files of 2011) and a simple dumper, this can be found on my github page: https://github.com/tautology0/dataconve ... ter/openup

The code is a bit hacky.
by tautology
Sun Jun 24, 2018 4:22 pm
Forum: adventures
Topic: Search for the Lost Orb
Replies: 19
Views: 1725

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: 23
Views: 2197

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: 511

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: 96
Views: 9350

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: 1072

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: 802

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: 802

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: 802

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: 802

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: 3132

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: 802

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: 3132

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: 851

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: 9
Views: 1537

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 63 times
by tautology
Wed Dec 06, 2017 11:38 pm
Forum: adventures
Topic: Retro Gamer Adventure Reviews
Replies: 9
Views: 1537

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: 3670

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: 6023

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: 3670

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: 6023

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: 6023

Re: https certificates?

Cools thanks!