Spectrum Computing

I'm still waiting for the article announcing the 2023 compo...

*refreshes his newsreader again*

firelord wrote: ↑Wed Dec 06, 2023 12:41 pm I believe that any porn spectrum title is Safe For Work (SFW).

There's at least one which I believe is currently illegal to possess, though unlikely to be in the public interest to prosecute over.

Don't get me wrong, I think trying to emulate shadow masks and suchlike is a worthy endeavour so that people can see the software the way it was expected to look rather than painfully pure colours and infinite-bandwidth pixel edges. I just think great big scanlines look dumb

To me "scanlines" is about as irritating as all those supposed VHS filters people slap on videos. You know the ones, where the picture's tearing side to side all the time and everything looks like an old 3D movie without the cardboard glasses.

I can't really remember, something like 2003 I think (UK)

I've made the change, but it still doesn't seem to be working as expected. ;enable ULAplus 20 OUT 48955,64 30 OUT 65339,1 ;choose palette entry 0 (ink 0) 50 OUT 48955,0 ;set RGB colours 70 LET r=3 80 LET g=6 90 LET b=1 ;set the colours 110 OUT 65339,((g*32)+(r*4)+b) ;print in ink 0 120 PRINT FLASH ...

how long for what, running enough code to get to the ROM © message, or being finished? Because the latter is "forever" based on the emulator authors I know :lol: There's a very active emulation channel on the ZX Spectrum discord, where a handful of folk split hairs over irrelevant details ...

There's no need for a voltage regulator, one 12V pin goes to aspect switching, and the other just needs the right resistance to give the correct blanking voltage, e.g. 560Ω

The only relatively cheap source I can think of, is to chop up a VGA cable… I have done this to make SCART cables for my Spectrum +3, and BBC micro. I wouldn't really recommend it as the cores are fantastically thin and horrendous to strip and solder. If I was doing it over (which I might if any of...

Just read another story about me poking willy in attick, completely false.

Are bears Catholic?



No wait, that's not right

1024MAK wrote: ↑Wed Sep 13, 2023 11:18 pm And we do need to define/decide what published actually means.

Did anyone ever decide what to do about Too Much Wine, the first telesoftware release of the 21st century?

That's not worldofspectrum.org anyway...

You can find the schematic for the tape board in the +2 service manual https://spectrumforeveryone.com/wp-cont ... Manual.pdf

The short would be something after the inductor, possibly C323 if it's not a short in the motor or switch wiring.

It's not a resistor, but an inductor. The value according to the schematic is 82μH. For it to have burnt up something else in the circuit is presumably shorted out. Do you mean that when you plug the tape board in it kills the machine? That would be consistent with it having a short on the 5 volt ra...

R-Tape wrote: ↑Mon Sep 04, 2023 4:02 pm One word: Horses 2.

I finished one chiptune cover this year that took me* a year, I doubt I'll manage another one by Christmas

*I get distracted...

R-Tape wrote: ↑Sat Sep 02, 2023 8:35 pm The deadline

This is still for Woot 2020 right? Oh. I see.

I seem to remember reading that @Guesser frowned on using such things, but I've never had any issues (touch wood!). The issue with the drive swap switch arrangement is that they short the output of IC18a directly to ground. :shock: (It also stops you from copying stuff to the internal drive, but th...

Why guess if there is a specification. Luckily emulator authors are always very well behaved when implementing snapshot export code, so finding snapshots with data stuffed into unused/reserved bits from an original specification to support extra hardware for their particular emulator basically neve...

So what you have to offer instead? Use szx because it's not perfect but most of the bugs caused by confusing design issues have been squashed out of everyone's implementation by now. Or create something new where every piece of configuration and memory block is its own block with extensible tags so...

Weiv wrote: ↑Mon Aug 14, 2023 8:04 am Some of configuration field bits I stated for now:

Yay, arbitrarily assigned machine configuration bitfields too! Speed-running all the mistakes of the last 30 years of emulator snapshots like we've never learned anything.

If you want to have yet another new snapshot format that no-one supports the usual route is to write another emulator.

Or you could write a converter from szx but in that case you may as well put your coding effort into an szx viewer/editor that might be useful

Gasman released one many years ago (used for speech samples in his game Celebrity Arses iirc) that I think he called "samplepack". Later someone else made a windows exe (wav2ay?) to do the conversion instead of using Matt's original perl script. It generates correctly weighted 4-bit sample...

This one creates great output (but you have to think of things you wouldn't do yourself )

https://youwouldntsteala.website/editor.html

The spectrum doesn't really care about audio waves. All it's interested in is edges , and the number of clock cycles that pass between them. https://sinclair.wiki.zxnet.co.uk/wiki/Spectrum_tape_interface The reason you see 16 1 bits at the start is because the data block starts with FF to indicate i...