Spectrum Computing

It's closed source and hasn't been released, to be honest I'm not sure it ever will as the accuracy of the emulation is below par, but the key point is that I can modify it at will, which comes in handy for testing zx-diagnostics :) I originally only started it as a means to keep my .NET skills up t...

Hi Peter, Would it be possible to add "BeSpec" to the User Agent safe list? I've got an emulator that performs ZXDB search/downloads and is getting 503's from SC, presumably due to Cloudflare. (The current user agent it includes in requests is 'BeSpec/0.2' but this will change with the emu...

Hi all, I'm pleased to announce a new version of ZX-Diagnostics, v0.37. You can find the release package here: https://github.com/brendanalford/zx-diagnostics/releases/tag/v0.37 The changelog for this release is as follows. Have fun! New features: - Support for the CSS Electronics 128K ROM board (ht...

I feel like that article misses a trick by not also describing the mods to put audio on pin 3 and the second 12V on pin 5. One SCART cable pinout to rule them all (and fully support all the SCART signals) :) I suppose they're somewhat more involved on the 128, needing wire to patch signals across. ...

You can find details on how to make your 128 Spectrum SCART compliant here (requires a little soldering, well within the reach of a beginner):
https://spectrumforeveryone.com/technic ... compliant/

This is going to be a ULA problem, unfortunately. What happens is that one of the KBx lines in the ULA gets stuck low, so the ROM code thinks multiple keys are permanently held down, therefore no keypresses can be registered. If you run a diagnostic program that displays the status of port 0xFE then...

Yes, just that the ROM checksum and machine auto detection won’t work if you’re not using one of the devices on the supported list (see the wiki for details).

Hi everyone,

I'm pleased to announce the release of zx-diagnostics v0.36.

Full changelog and binaries are available here:
https://github.com/brendanalford/zx-dia ... /tag/v0.36

Have fun, and please let me know if you encounter any issues

Just in case things are hotting up. While I'm flabbergasted by some of his posts can we be sure we don't resort to insults. Don't give anyone a reason to hit the report post button. I’d like to apologise for the tone of my earlier posts. You are completely right and there is indeed no need to stoop...

May I be the first to call 'Bollocks'. Really Lee, you're insulting people's intelligence here. You're a chancer, spoofer, and whatever other adjective suits a person who takes on a project way above their capability level. The best thing you could do is to hand over WoS to a more capable team of pe...

Quite interesting that Richard, Gerard and David have been thrown under the bus as far as WoS moderation goes. Funnily enough whilst I don't always agree with them I've found them somewhat more approachable than the admin who purports to be acting in the site's best interests...

It is nice to see people's opinions here, and even nicer that people are allowed to express them freely

I presume Whacker's talking about the requirement for individual API keys for programmatic access to WoS resources.

Go for it guys, firmware link is in the initial post, and there are instructions on the wiki (link in my sig).

Well if the ROM's missing, it'll confirm that fact for you

Thanks Mark

Hi everyone, I'm in the final stages of preparing a new zx-diagnostics release, so I'm looking for beta testers :) You'll need to have a Diagnostic board, Retroleum SMART card, ZXC3/ZXC4 cartridge, Dandanator! Mini or a good old fashioned EPROM blower. Oh, and preferably one or more broken machines ...

One of the first things the ROM code does, regardless of memory state, is set the border to white. So if that's not happening then either the CPU is dead, or more likely in your case, one or more faulty RAM chips are holding data lines high or low. Since we have the data bus separator resistors prot...

Lucky I had them saved locally then Here you go:
http://www.brendanalford.com/PCF1306P.zip

Here's a link to a page describing ZX-MUX, which was designed to be a drop in replacement for the ZX8401/PCF1306/Amstrad 40058 IC's:
http://8bit.yarek.pl/upgrade/zx.zxmux/index-de.html

You'll find schematics and gerber files there, I've built a few using the gerbers and they work fine.

I absolutely loved Behind Closed Doors. Hadn't done any major adventuring before finding this on a SU cover tape.

For an explanation of the memory screen layout, see this page (by Chris Smith, this is the work that fed into his book): http://www.zxdesign.info/memoryToScreen.shtml - and for an explanation (a little technical) as to why this layout is important: http://www.zxdesign.info/dynamicRam2.shtml Basicall...

Think the +3 was £249 when first released, which sailed a bit too close to A500 territory in my view.

£199 would have been a nice initial price point, I agree.

A phrase I use a lot is 'we are where we are'. Everyone has their own viewpoint on how we got here, the important bit is how we continue.

Great to see so many familiar faces on here already

Hi everyone!

I'm Brendan, you may remember me from such things as zx-diagnostics (shamefully plugged in my sig), and from the Spectrum For Everyone FB group.

Just wanted to say Hi and best of luck with the site