Spectrum Computing

I followed the link and now I know the idea of it, but you seem to have misunderstood the meme. ... yours just aren't funny. Sorry. You're kidding. That was freakin' hilarious :D I dunno. I feel like I have to second Sokurah a little bit. This looks awfully similar to the regular Manic Miner logos ...

An oxymoron of course. But apart from this, as I have a 48k in a keyboard case with too much space https://spectrumcomputing.co.uk/forums/viewtopic.php?f=22&t=1723 and I have to solder around on that thing anyway the thought crossed my mind, what could be done else. Inspired by this mem https://...

Juan F. Ramirez wrote: ↑Sat Oct 26, 2019 2:45 pm...

I totally agree. She's obviously to old for you.
Now if you could hand over that number ...

Has someone a pointer for me, where you get the ZXDS card? There's a link to a fb group here https://www.youtube.com/watch?v=1zHEpaqWwlU but I'm not to fond of fb. I'm aware, that it is just some genuine card for emulators with the free Czech Emulator http://zxds.raxoft.cz/ but the card is for anoth...

The TIF files were 250mb though which I thought a bit ridiculous. Today with 4k videos 'n stuff 250mb of course is nothing. Just thought, you wanted to know how it get's so bloated, e. g. if you should have to send such a file by email. The physical resolution should be mentioned in the scanner's m...

Here you go, I also scanned Horace and the Spiders and Horace goes Skiing as they are slightly different images of Horace too. I always had the highest regard for Timex. Wish I had a https://en.wikipedia.org/wiki/Timex_Sinclair_2068 Why oh why didn't Sinclair go with their improved ULA? So they kne...

Hence why I suggested a 74HCxxx part. Thanks for your thoughts. Off course 74HC or 74LS would be ideal for the reasons you listed, but at the moment I have to go with what I have. But isn't this the True Sinclair way? Screw the specs, let's try something cheap and easy and hope it works! There is n...

This discussion is mainly about the looks of Horace, right? In this case I would propose a technical solution - one I'm inept to implement myself, I'm quick to admit - but well, here goes. Horace is just 1. a name and 2. a bundled of bitmaps IP laws differ from country to country, but there seem to ...

Do you have enough space to fit an extra board in? I’m talking about a piece of stripboard appropriately 40mm X 50mm ? There's plenty of space https://www.nightfallcrew.com/wp-content/gallery/lo-profile-professional-keyboard-from-advanced-memory-systems-ltd/IMG_0996.jpg If yes, get a 74HC245 DIL ch...

Don’t forget you also have to account for the B-E forward junction voltage drop/turn on voltage of the PNP transistor. Umm ... yes, that could be a problem. A much better place to put PNP transistors, is in place of diodes D1 to D8. Remove these diodes. Now connect the base of each transistor to wh...

Turns out, I'm mechanically incompetent. I tried to disassemble and reassemble the keyboard, but got foiled by the space bar already. I sort of reassembled it, but with only one dome and now it is all wobbly. So I thought of an electronic substitute. the 5 date lines connected to the ULA are pulled ...

alban lusitanae wrote: ↑Sat Jul 20, 2019 11:07 am So beautiful

It's called post kidnapping or postnapping. We'll see, who's laughing, when the ransom demand reaches you.

In totally unrelated news: Is there a bitcoin client for the Spectrum?

I had my grandniece (3) code one, but she keeps complaining that my assembler IDE is quirky.

Ralf wrote: ↑Fri Jul 19, 2019 4:51 pm Man, I don't know what you're smoking but I want it too

Sorry, couldn't find a suitable dead drop.

Unfortunately my description of doing precise loops without knowing how to count featuring the Zermelo-Fraenkel-Set-Rap got banned by the Monty-Phyton-Funniest-Joke-Law.

I taught him about DRAW, which is fine. It is. Strangely enough, they haven't been taught binary, register usage, esoteric display layouts or bit-patterns. Go easy on them. They are only teachers. They wasted their lives at some university or such instead of experiencing the one true religion in th...

6. Too busy playing Jet Set effing Willy. Heh. And this^ of course. So we have reached common ground, At long last. *I keep typing that by mistake, I'm going to stop correcting it. Everyone has personal quirks. Mine is, that I don't have them. Some people even have the quirk of believing I have the...

Who was loading 48k of data on a ZX81? E.g. I knew someone who did the housekeeping of his business (a small electronics shop) with a 64 Memopak, with self written programs. He also sold them with quite some success. He used some of this speedloaders which had a hardware add on and recommended it t...

Hmm, I think something got lost, now what was it? Ahh yes, Sir Clive Sinclair set the specifications. As the owner of the company he was responsible for deciding what features were in and which were dropped. And as such unsusceptible in every aspect to the lure of gold? And you do know that Clive a...

But for a Speccy? 16kb of tape took a while to load. Having to do that every time you booted up would be a real PITA. If you don't like waiting and love the ROM so much, as to use it every day, we have a ROM to sell them. Or a microdrive. And as the Speccy had no soft-reset system (which would have...

You can learn BASIC faster than assembly, that is literally the point of it. It is faster to learn. Than FORTRAN. "The new language was heavily patterned on FORTRAN II; statements were one-to-a-line, numbers were used to indicate the target of loops and branches, and many of the commands were ...

You could explain that a value in binary equates to a value in decimal. No need. There are simply bits and they go into an array of the computer we can see. In two steps. And the Great Programmer said, Let there be 1: and there was 1. And the Great Programmer saw the 1, that it was good: and the Gr...

RMartins wrote: ↑Fri Jul 19, 2019 12:53 am Rubber domes can be found online, for replacement.

Thanks, I'll look into that.

I have a 48k built into this https://www.nightfallcrew.com/10/02/2014/lo-profile-professional-keyboard-for-sinclair-zx-spectrum/ The worst problem seems to be the keyboard. Most keys don't work at all. The keyboard is made of a board at one site with 2 Cu contacts per key, which are connected by pre...

PeterJ wrote: ↑Thu Jul 18, 2019 8:28 pm Ii think it would have taken me much longer to get a grasp of Spectrum specific assembler, if I had not learnt BASIC first.

https://www.youtube.com/watch?v=WeiufBduVE8
But isn't this just a case of knowing any computer language helps to learn any other one?

"We could get a full 64k of RAM?" "With a 16k ROM?" "No, that would cost more, we'd need some sort of paging" "Bugger that, let's launch it as 48k. It's still more than 1kb." I especially like that. But we would also be able to bring out revisions of the ROM ...