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That sounds like one of the sub-games from Space Mission Mada by Sherston Software. I recognise it because I was playing it a few weeks ago!

Sorry, I must have missed this thread when you posted it. I think it’s very much pot luck. I’ve had a few that were fine, and others with a totally blank screen or a horizontal line in the middle. The problem with Cubs, as distinct from Beebs, is that there are fewer people who know how to diagnose ...

I even spotted a place where I got to it by falling through from a BCC that did not branch, meaning the carry would definitely be set ; so I just used ADC #&3F instead of CLC ; ADC #&40 like somebody who pegs their socks in pairs. I mean if you're going to get hanged for taking a lamb, you might as...

I think I completed Storm Cycle on my second playthrough, but that says more about the easy nature of the game than about my game-playing prowess! Regarding Exile, it's really more of an action adventure... as such it's designed to let you save the state, reload, think about the puzzles, try things,...

BBC Masters don’t really have a BIOS, they’re not PCs! They have an OS in ROM. To help us to help you it would be good if you could tell us what model you have and say what appears on screen when you turn it on.

Personally, I use SMC all over the place where it will save space or cycles! But only if I *need* to save the space or the cycles!

Really looking forward to watching these! I need to move to a country where it's the middle of the night when they're happening, so I can get up and participate in realtime. But for the moment, watching on catch-up will have to do. Thanks for uploading them so quickly.

Given that I have about 5 RiscPCs and a variety of other machines that could do with some fixing ... at some point in the future ... please could I be added to the queue?

Thanks!

It still only has a 1MHz CRTC though...

Can you see any batteries in there at all? There should be some in there, they keep the cmos battery settings and the real-time clock working. If your Master is consistently working, then they must be in there somewhere!

That’s a nice Master 128. Congratulations!

Everybody go and vote for Exile! Why would you want to hear about some old skateboarding game? Exile is clearly the superior choice!

Not one mention of Acorn in the BBC article about this. :( How long before Apple's marketing engines start claiming these are the first ARM-powered desktop computers? If they do, well, Advertising Standards will be getting an email from me. Pretty unlikely I think, they haven't mentioned ARM once p...

Bitshifters and Desire are proud to release 'Evil Influences' for the BBC Master. https://bitshifters.github.io/posts/prods/bs-evil-influences.html This one has been in development for many months and contains graphical techniques not previously seen on the Beeb (as far as I am aware!) It was a join...

You'll need a BBC Master to run most of the recent demos!

Also, in around a week's time there'll be another one to add to the list... assuming I don't collapse from lack of sleep before Saturday!

Not sure. I can compile the latest master branch from source and run both Release and Debug versions locally, which would suggest it's some problem with packaging / code-signing / notarisation of some kind, or perhaps libraries that are available on my machine that aren't on yours. Will try to see i...

Hi @LordVaderUK ... quick question: Where are you running B2 from? Do you run it from the Downloads folder or do you copy it to Applications? If you're downloading it straight to the Downloads folder and running it directly from there, it might be worthwhile copying it to the Applications folder and...

How confident do you feel building from source? I have recently been building B2 from source on macOS Catalina and although it requires a bit of command-line effort, it's really not that bad. If you're interested in giving it a go you could take a look at the instructions (https://github.com/tom-sed...

Awesome demo Kieran and everyone else who contributed! There is definitely some history behind the fire alarm thing. :D At Nova 2019 the alarm went off at the end of the Friday evening, owing to the amount of smoke from the smoke machines. Some poor soul had to get up at almost midnight and come dow...

Now try doing this when the preceding and following code is writing to the CRTC registers, which are 1MHz, so you have to take account of whether each CPU cycle is on an even or odd 1MHz tick and adjust the timings for STA <register> accordingly because of cycle-stretching...

This is a great example of the various trade-offs you have to make when optimising code for space vs. speed, but there are other considerations as well: side-effects (or lack thereof) and cycle timing predictability. INC &70 BNE skiphigh INC &71 .skiphigh Takes: Either 8 or 12 cycles. (No good if yo...

Could this be related to Smart SPI and use of the User Port for file loading? A while ago I gave UPURSFS a try to see whether I could use it to host files on my development machine (an iMac) and load them directly from the iMac. But I could never get Wave Runner to load because it crashed out toward...

Thanks all. I suppose as long as my code lives and is accessing data only in sideways RAM, it shouldn't be a problem. Should be fine. The only things to watch out for when you have code and data in SWR is that 1. you keep track of which SWR bank is paged in (low four bits of ROMSEL, &FE30), and 2. ...

Thanks all. I suppose as long as my code lives and is accessing data only in sideways RAM, it shouldn't be a problem. Should be fine. The only things to watch out for when you have code and data in SWR is that 1. you keep track of which SWR bank is paged in (low four bits of ROMSEL, &FE30), and 2. ...

Just noticed the Phoebe RISC PC II case with an asking price of £25. I'm definitely interested in that! Will pop a note in the email thread when I reply, so we don't lose track :) Oh dear, we've now had I think seven people say the same thing. I forget what the hold-up is on person 1 -- possible it...

The obvious cheap-and-cheerful way to do it, to me, would be to have a few large-ish files filled with random data. Delete all the personal data, then fill up the free space with the random files. Then delete them and fill it up with some other random files. Repeat two or three times and it would be...

One question now though - does the stable raster technique work on b-em? If I do ever play around with this I'd be using an emulator and b-em is my emulator of choice most of the time. Unfortunately I think you'll need B2 or JSBeeb for accurate stable raster emulation. I recall moving from B-Em to ...

Yes, a Z3 theorem solver. Whatever that is. :) Regarding stable raster to squeeze in an additional palette change... you've got 48 cycles in the vertical blank. If you assume that every palette write is LDA immediate, STA palette register, you can fit in maximum 8 writes... But if you had A, X and Y...

(Ignore, I hadn't fully understood your requirements!)

Well, you could set all palette entries to black!