Search found 20 matches

by Phantasm
Wed May 29, 2019 3:34 pm
Forum: software: new games
Topic: A couple of games in BASIC I worked on recently.
Replies: 4
Views: 566

Re: A couple of games in BASIC I worked on recently.

Nice. I did not go too crazy on the optimising of the 2k one.. just enough to keep it within the 2k. Ideally I didn't want it to become a complete unreadable mess.
by Phantasm
Wed May 29, 2019 1:18 pm
Forum: software: new games
Topic: A couple of games in BASIC I worked on recently.
Replies: 4
Views: 566

A couple of games in BASIC I worked on recently.

Some people on a discord channel I am on decided to have a go at writing some very small retro games in BASIC. First off we decided to go with seeing what we could do in 1K. After I attempted that we agreed that 1K was probably a bit too limiting so we decided to go with 2K. I decided BBC basic was ...
by Phantasm
Wed Apr 17, 2019 8:48 pm
Forum: software: classic games
Topic: Citadel Disassembly / Reassembly v0.1
Replies: 18
Views: 3029

Re: Citadel Disassembly / Reassembly v0.1

Brilliant work. This was probably my favourite game on my Acorn Electron
by Phantasm
Sun Apr 14, 2019 2:10 pm
Forum: software: classic games
Topic: Electron Dunjunz
Replies: 43
Views: 5000

Re: Electron Dunjunz

I did a write up here of how the disc version was done for anyone with some understanding of 6502 who wants to see how it was made

See attached PDF for details
by Phantasm
Fri Apr 12, 2019 11:07 pm
Forum: software: classic games
Topic: Electron Dunjunz
Replies: 43
Views: 5000

Re: Electron Dunjunz

Have a go with this... I have only tested it on Electrem and Elkulator and not on real hardware. it works on both of those using E00 DFS. Hopefully will work on real hardware too. I did have to use some bytes at the bottom of the stack space as a temporary store which is a bit risky, i only got as f...
by Phantasm
Wed Jan 03, 2018 4:22 pm
Forum: programming
Topic: 32k memory management for dummies
Replies: 28
Views: 2411

Re: 32k memory management for dummies

tricky wrote:For my games, I use 32K-3bytes, but you have to do everything after load yourself (maybe more work than you want).


out of interest what does 'do everything after load yourself' comprise of in order to load data without going through the standard *LOAD routines?
by Phantasm
Wed Oct 04, 2017 4:25 pm
Forum: programming
Topic: Memory-efficient decompression for embedded computers
Replies: 4
Views: 995

Re: Memory-efficient decompression for embedded computers

I have attached some stuff I wrote earlier this year when doing a tape 2 disc conversion project for the Electron. It is a lzss compressor in C# (source code included) with a 6502 uncompressor with BBC basic source code included. The source code includes a test project that compares several slightly...
by Phantasm
Thu Sep 07, 2017 10:06 pm
Forum: software: new games
Topic: A new conversion for the BBC Micro
Replies: 18
Views: 4331

Re: A new conversion for the BBC Micro

We got some coverage of my release in the latest retro gamer magazine where they gave us a review score of 91%, Thanks to kieranhjfor suggesting putting this forward to retro gamer. Also thanks to retro gamer magazine for the review. I did also do a developer interview for them but not sure if that ...
by Phantasm
Wed Jul 05, 2017 3:34 pm
Forum: software: new games
Topic: A new conversion for the BBC Micro
Replies: 18
Views: 4331

Re: A new conversion for the BBC Micro

That's super smooth - good work Darren, thanks for sharing, nice to see the source available too! :) Do you have any other Beeb conversions in mind? I've just bought an Amiga 1200 so I have a plan to go back to some of my old Amiga sourecode and possibly finish off some tools I started writing in 6...
by Phantasm
Tue Jul 04, 2017 4:07 pm
Forum: software: new games
Topic: A new conversion for the BBC Micro
Replies: 18
Views: 4331

Re: A new conversion for the BBC Micro

source code for this project is now available here:

https://github.com/dmcoles/TrailBlazer_ ... Conversion

Sorry there aren't too many comments. If anyone has any questions I'm happy to try and answer them.
by Phantasm
Fri Jun 30, 2017 9:16 am
Forum: software: new games
Topic: A new conversion for the BBC Micro
Replies: 18
Views: 4331

Re: A new conversion for the BBC Micro

kieranhj wrote:Great work! This plays really well and is nice and smooth. Always fantastic to see new games being finished for the Beeb. You should send to RetroGamer magazine - they're surely due some more Beeb coverage soon. :)
Thanks for the suggestion. I've sent them an email so we shall see.
by Phantasm
Thu Jun 29, 2017 7:52 pm
Forum: software: new games
Topic: A new conversion for the BBC Micro
Replies: 18
Views: 4331

Re: A new conversion for the BBC Micro

DutchAcorn wrote:
Phantasm wrote: When you have some time can you give this one a try on the real hardware https://dmcoles.github.io/trailblazer/fixtrail.ssd
That version works fine! =D>
thanks for confirming i've updated the original link with this updated version
by Phantasm
Thu Jun 29, 2017 10:26 am
Forum: software: new games
Topic: A new conversion for the BBC Micro
Replies: 18
Views: 4331

Re: A new conversion for the BBC Micro

It happens on both sounds, falling and jumping. Not always, but at least 50% chance with both sound effects. This morning the game did not produce any sound at all, I'll try to replicate that somewhere this week. When you have some time can you give this one a try on the real hardware https://dmcol...
by Phantasm
Wed Jun 28, 2017 10:58 pm
Forum: software: new games
Topic: A new conversion for the BBC Micro
Replies: 18
Views: 4331

Re: A new conversion for the BBC Micro

Wow, nice and smooth! Made it to level C... On my real model B it has an issue with the sounds though, sometimes the sound is "hanging" so you basically have a long beeeeeb while playing until another sound is produced (hope this makes sense). Thanks for the feedback. I heard another report of the ...
by Phantasm
Wed Jun 28, 2017 4:08 pm
Forum: software: new games
Topic: A new conversion for the BBC Micro
Replies: 18
Views: 4331

A new conversion for the BBC Micro

I am very proud to present to you today, my latest project that has been in progress for the last few months. I decided to put together a conversion of the game Trailblazer https://en.wikipedia.org/wiki/Trailblazer_(video_game) to the BBC Micro. I chose this particular game as I have pretty much zer...
by Phantasm
Mon Mar 13, 2017 5:18 pm
Forum: introduce yourself
Topic: Hello from long time lurker
Replies: 8
Views: 1415

Hello from long time lurker

Hi. I've been aware of and occasional lurker in this forum for quite a while. I registered so I could post on one particular topic but since I have now registered, i figure I should introduce myself. The Acorn Electron was my first computer back in '86 for my 13th Birthday. I learnt to program that ...
by Phantasm
Mon Mar 13, 2017 4:33 pm
Forum: general
Topic: The BBC Micro In Pixels
Replies: 20
Views: 3181

Re: The BBC Micro In Pixels

I've got all 3 of the ZX Spectrum in pixels books (as well as quite a few other similar retro related books). It had occurred to me that the Acorn machines seem to be notably missing in the flurry of retro computer books that seem to be around at the moment. The only book i've managed to find that i...
by Phantasm
Mon Mar 13, 2017 4:25 pm
Forum: software: classic games
Topic: I know I've asked this before a thousands times BUT...
Replies: 30
Views: 3542

Re: I know I've asked this before a thousands times BUT...

It's good enough for me, although actually most people do prefer DFS versions as the system keeps PAGE at &E00. Actually, with all that extra memory to play with, you might be able to get the DFS version to work without the score quirks... Or someone else might be able to have a go... :-) the 31 fi...
by Phantasm
Mon Mar 13, 2017 3:45 pm
Forum: software: classic games
Topic: I know I've asked this before a thousands times BUT...
Replies: 30
Views: 3542

Re: I know I've asked this before a thousands times BUT...

Dave_E wrote:Awesomeness!
Only just noticed that you wanted this on a DFS disc version. Hope this ADFS version is good enough
by Phantasm
Sun Mar 12, 2017 10:09 pm
Forum: software: classic games
Topic: I know I've asked this before a thousands times BUT...
Replies: 30
Views: 3542

Re: I know I've asked this before a thousands times BUT...

I saw this post a while back and decided it looked like an interesting project to take a crack at I spent quite some time looking at this in my spare time. I've never attempted anything like this for the Electron but i have quite a bit of experience in reverse engineering of 68000 code. I owned an E...