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ZXSpin 0.61 Available nowHi all! Well, after a lengthy few testing cycles, I'm taking the plunge and uploading the latest version of ZXSpin, to replace the rather aged old 0…
... accurate "ULA snow" and IR contention. Note that truly accurate snow ... -
Windows VistaNever installed my Beta version, too many bad reports. Anybody tried it yet? I was reading a report that said serious 3D acceleration was required …
... -board graphics chipsets out of contention - anybody know what the truth ... -
Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…
... 2 due to the memory contention issue).
How do ... -
SpecEmu 2.4 releaseSince SpecEmu has been at 2.4 beta for as long as I can remember I think it's about time I made a proper 2.4 release for its users :) Major new feat…
... automatic loader detection.
* Improved contention model for multi-colour demos ... -
Sam Revival Back Issue Bonanza!As a special offer throughout March, i'm giving 25% off back issues of Sam Revival magazine. So if you are looking to fill in gaps in your collection…
Fuse for Mac OS X beta releasesA beta version of Fuse for Mac OS X has been released at the dedicated sourceforge project: [url]http://sourceforge.net/projects/fuse-for-macosx/[/u…
... support (Stuart Brady)
[*] Fix contention for LD?R, CP?R ... (Stuart Brady)
[*] Separate out contention when MREQ isn't active ... the +2A/+3 ULA applies contention only when MREQ is active ...I want to build a new, super spectrum ;-)only kidding Andrew :-) my brain's going at a mile a minute at the moment, so I thought I should put some of the ideas down in case one of them is w…
... or something based on the harlequin circuitry built as a plug ...Broken SpectrumsChaps ( & Mrs Death ), I was looking at getting some dynamic ram chips for the next phase of the Harlequin stuff, and I started thinking...... I've…
... the next phase of the Harlequin stuff, and I started thinking ...Compatible SpectrumsFollowing some recent coding exploits I've been thinking about compatibility of various models of ZX Spectrum. Yes, it's a common question on the for…
... all... due to the memory contention issues. The +2a/+3 had ... also the issue of different contention timings to the "original" models ... can't change the hardware contention, surely.
Of ...FPGA Spectrum is aliveMy FPGA Spectrum that I started to work on year ago is in 90% ready. I have fixed DDR controller so I can read from it and write to it. I've run som…
... lack are the problems with contention model (model because for videoram ...Pentagon floating bus timingI wanted to take a little break from working on the ZXDS UI yesterday, so I added support for Pentagon timing instead, so I can finally enjoy the lik…
It's a trap!So I got a CPLD (not the eventual one I want to use for the ethernet project - rather, one I actually have here and now, an XC9536 in a PLCC44). And…
... that csmith did with the Harlequin, but then again, given this ...128 +2 KeyboardI've just bought an Amstrad +2 keyboard assembly (membrane and keys) on ebay to use with my Harlequin project. It was a steal at about 1 Euro ;-) It…
... ebay to use with my Harlequin project. It was a steal ...Crystals...Anyone know a source of 14MHz crystals?? I've only been able to find 14.3**** crystals. If I/we want to build more Harlequin's, then we need 14Mhz …
... /we want to build more Harlequin's, then we need 14Mhz ...Fuse for Mac OS X 0.9.0 ReleasedA new version of Fuse for Mac OS X has been released at the dedicated sourceforge project and shortly here on WoS: [url]http://sourceforge.net/proje…
... emulation (Q-Master).
[*] Fix contention for LD?R, CP?R ... (Stuart Brady).
[*] Separate out contention when MREQ isn't active ... the +2A/+3 ULA applies contention only when MREQ is active ...Spectrum ULA replacement!Hi gang.. The Speccy 48 ULA Replacement is *almost* here ;) There has been lots of activity in building the CPLD board, sorting out some irritating…
... and prototyping some up-coming Harlequin 'features' ;)
Anyway, the ...Happy Birthday csmithHappy Birthday csmith... ...don't drink too much, you've got a Harlequin to work on.
Happy Birthday csmith...
...don't drink too much, you've got a Harlequin to work on.Fuse for Mac OS X 0.10.0 ReleasedA new version of Fuse for Mac OS X has been released at the dedicated sourceforge project and shortly here on WoS: [url]http://sourceforge.net/proje…
... (but probably not perfect) TS2068 contention (Philip Kendall).
[*] Various other ...IN 255 behaviour not emulated in Spectaculator and ZXSpinI'm not speaking about "normal" IN 255 behaviour. All of you know what I'm taking about: IN 255 can be used to "read" screen data as it's retrieved f…
... and ZXSpin may follow the Harlequin design, so I assume this ... also happens with Harlequin. May Chris check this, please ...Fastest way to clear a screen.We haven't had an optimizing fun for some time, so let's have some: What's the fastest way to clear a screen (i.e., filling the 6912 bytes at 16384 w…
... let's ignore the memory contention.
To start with ...25 years with the SpectrumTo paraphrase JFK, ask not what your Spectrum can do for you, but what you can do for your Spectrum. Well I've done quite a bit since I joined the sc…
... Spectrum SE compatibility to the Harlequin
* Contributed routines from SE ...Superb speccy 'clones' link[url]http://tarjan.uw.hu/zxclones_en.htm[/url] found that last night whilst bored, browsing, a quick scan here didn't find anything it's got everyth…
... 's got everything there, speccybob, harlequin, pentagons....a superb link and ...Some ever noticed that +2A/+3 halts Z80 using WAIT?I mean: Anyone ever noticed that the +2A/+3 halts the Z80 using WAIT? All documentation I've read about contention state that the ULA halts the Z80 …
... documentation I've read about contention state that the ULA halts ... at the screen RAM, so contention should be strong here.
rebuilding a speccy - original hardware, emulation or cloneI have some spare speccy parts and cases etc and I've been thinking of bastardising a spectrum. I'm undecided as to using original hardware, clone or…
... thought is I wait for harlequin to be finished? or use ...Subacuatic (ZX Spectrum 128k) - MojonTwinsFerdinand W. Templeton is the referential archeologist at the University of Michigan. His important discoveries in such exotic places as Egypt, Phili…
... modified ULA present in the Harlequin clone and implemented in emulators ... game in a ULA-modified Harlequin (when this is possible in ...Sgt. Helmet Zero - The Mojon Twins (Spectrum 128k)Hi! this is our first christmas present! :lol: [size=150]Sgt. Helmet Zero[/size] [img]http://www.mojontwins.com/wp-content/uploads/2009/12/09.gif[/…
... modified ULA present in the Harlequin clone and implemented in emulators ... game in a ULA-modified Harlequin (when this is possible in ...CPI emulationI'm currently writing Sinclairean's emulation assembly for the CPI/CPD/CPIR/CPDR instruction group. Does anybody know what exactly the behavior of th…
... write should be checked against contention.Can a Spectrum make a Harlequin?I've seen this before, but it's still a bit confusing. Are they really printing circuit boards and a Speccy controls the whole thing? :) [url]http:/…
I've seen this before, but it's still a bit confusing. Are they really printing circuit boards and a Speccy controls the whole thing? :)
[url]http://www.spectrum-robot.narod.ru/[/url]
Please don't point me to a very old thread. I ...So you need to double (or triple, or quadruple) the clock speed...No particular reason for posting this, other than I was looking at an eZ80 evaluation board that does this, and that jogged my memory of a project I'…
... as tidy as csmith's Harlequin :-) The chip on the top ...VCF report and photosNot sure where to put this, exactly...but here it is, what went on at the Vintage Computing Festival at Bletchley Park last weekend. Finally I've fo…
... Smith's. He had the Harlequin, which as you may recall ... stand was very busy, the Harlequin drew a lot of interest ...
