stardot.org.uk

I figure I should just share this here, rather than leave it languishing on my PC. Although I'm no longer actively helping with the development of BBC AGD, I did have some success a while back converting Foggy's Quest by Dethmunk into MODE 1 to give it a bit of colour (the Spectrum version looks gor...

Thanks again for organising! Please put me down for the afternoon and evening.

If you found some suitable VGM files for music then you should have come talk to us Bitshifters! Try taking a look at https://github.com/simondotm/vgm-converter and https://github.com/simondotm/vgm-player-bbc from simonm. Drop me or Simon a PM if you need any help getting it going. Keep up the good ...

Unfortunately (well, fortunate for me) I'm away on holiday on that Thursday. I will endeavour to attend the following session in November and maybe even see if I can get the CRTC Registers masterclass together by then.

Not sure I will be able to make it tonight but will pop in if I can.

I understand it wouldn't look pretty with the two blank scanlines creating a dashed line effect unless I also changed the value in CTRC register 9 to 7 to remove the blank scanlines, but I wonder if anyone else has tried such a thing? If you want an equivalent of MODE 0 or 4 but with just 25 charac...

Great work, as ever! It is super-smooth and responsive. The coyote time jumping is absolutely essential and become a gameplay feature I see. If I was going to be critical then I would say that the collision detection is a bit too coarse at the moment. Would it be possible to make this pixel-perfect?...

What a list of contributors! And the book looks like a really high quality edition. Really looking forward to reading this.

A modified MODE 1 (256x256) on the Beeb would save 4K and you only have to inc/dec the hi byte of the screen address to switch char rows. A square MODE 1 (256x256) on the Beeb takes 16K but you still need to increment two pages to get to the next character row as there are 64 columns * 8 bytes per ...

0xC0DE wrote: ↑

Wed Sep 23, 2020 4:24 pm

Thanks for all the positive comments and suggestions for improvements. There will definitely be a Beeb version! Actually, it will be a multi-platform version that runs equally well on either system (as games should!).

Beeb version in MODE 1 maybe?

Ooops, yes, I'll be there tomorrow. No Masterclass from me this time though! (I have CRTC register programming and maybe Video ULA 101 on the backlog though.)

And again, good job with this port. It's a funny little game, that I'd also never heard of, but quite addictive once you get into it, as you say. I love the NULA version in dreary grey, very authentic! I think I like your MODE 1 colour choices better. Enjoyed the video again too.

So many games! You have been busy Tricky. Great work once again, and also enjoyed the video a lot hearing about your history with the game and the details of how it works. Good stuff.

Excellent work Tricky, as ever! And a fantastic video, really interesting to hear about the details of making the game.

Now, about that 6502 copro version with line drawing in MODE 0.

I'm looking forward to catching up with some of the presentations I missed. The ones I saw were very inspiring and it's great to see people still developing for the Atom, Beeb, Electron and Archimedes. Kieran, your 'introduction to timer interrupts' was superb! I remember trying to work out this st...

Nice to see everyone last night and thanks again to Arcadian for organising. I hope the Intro to Interrupts session was practical and useful. All the text and asm code can be found on GitHub: https://github.com/kieranhj/intro-to-interrupts. In the spirit of improvement, please feel free to PM me wit...

Oooh, if Chris is presenting please put me down for the afternoon & evening.

(The README contains full acknowledgements of those whose shoulders I have stood on for this project, but I must give a particular shout out to kieranhj, whose original port of the source code to BeebAsm gave me the starting point for this project. You really inspired me, Kieran - thank you.) This ...

Looking good! Nice to see so many wolves on screen at once, really gives it that arcade feel.

Looks great!

Is this running on a Pi copro streaming over the Tube? I’ve tried some simple delta video codecs streaming from floppy in MODEs 4 & 7 with mixed results. I’m thinking Smacker is likely going to be too heavyweight at 4kb/s + 2MHz 6502?

Love the MODE 1 ‘hires’ look - I think dithered ghosts would work well too. EDIT: I see what you mean about the challenge of having a 288 pixel high screen. I think having lives and fruit on the side looks fine but the scores feel a bit cramped. Any chance you could leave them at the top? What heigh...

Thanks Dave, thanks BigEd. By a fortunate coincidence, TobyLobster just started a thread about their BBC MOS Reassembly: https://stardot.org.uk/forums/viewtopic.php?f=54&t=20303 This looks like a great resource - you can step through the MOS IRQ handler line-by-line with comments here: https://tobyl...

I've been figuring out my calendar for this week, but have confirmed I can attend so please put me down for the full session! Project-wise I can do a show & tell of the Rocket Sync Tracker connected to Arculator - an interesting way of sequencing demos that has a lot of potential and may encourage f...

I don’t have anything as small as Hello World but there is a repo with a (slow) MODE 9 implementation of the Doom fire effect: https://github.com/kieranhj/doom-fire How basic a Hello World were you looking for? This is plotting direct to the screen in MODE 9, with a single buffers, although the code...

Hey, always great to hear when people are interested in developing for Archimedes! I posted this thread about my 'modern' development environment setup on Windows: https://stardot.org.uk/forums/viewtopic.php?f=29&t=18635. I'm not creating ADF or AIF files, just absolute executables, so assembled at ...

Now you mention it, I do have a very crusty issue 4 Beeb that has incredibly stiff & sticky keys that are quite unpleasant to type on and often don't connect even though they have to be quite deliberately pressed. I don't have a good answer to how to improve this, as I don't use it as my 'regular' m...

It's not a 'cherry' Master is it? The keyboard for those later models feels very different from a classic BBC.

EDIT: Pictures would help!

These are fabulous suggestions Kieran and it would be great if one of the aims of these Dev Nights were to be the creation of a video-based encyclopedia for would-be Acorn games/demo programmers, of all abilities. I think it would be beneficial if we could try and identify a 'programme' of topics t...

By good fortune I am free tomorrow evening so will join for the full session. I look forward to seeing everyone online again. :) I PM'd this to Arcadian, but on reflection warrants posting here for potential discussion tomorrow. I think it will be really important to establish the purpose & structur...

It couldn’t be in BASIC but on a Master you could do this at 50Hz with single pixel horizontal & vertical movement in MODE 2 by using vertical rupture to scroll vertically one scanline at a time, plus SHADOW RAM to offset a second copy of the ball by one pixel. For the background you could make a fi...