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+2 KeyboardHi peeps... I purchased a "faulty" +2a keyboard for my Harlequin build and everything looks pretty clean and no apparent damage to the membranes... I…
... "faulty" +2a keyboard for my Harlequin build and everything looks pretty ... -
POKE taking a variable amount of time...Hi Folks, Does anyone know why the following POKE statements seem to vary in their execution time? [code]100 POKE 60000,10 110 POKE 60001,16…
... something to do with memory contention? Although address 60000 is outside ... -
Fund raising for new Spectrum hardwareOur friend Djordie Mitic has produced some excellent products for our Spectrum’s over the past months and he is going to continue the trend in making…
Spectrum 48+ 4S - Upper RAM issue, and now a self-created problem!I recently picked up a known-flaky spectrum off eBay, to have a bit of fun fixing it and reliving youth. It was labelled as 'keyboard duff, shows…
... anyone built one of the Harlequin 128k revision 2D boards, with ...Powering the Halequin 128....Hi all, I've just ordered a Harlequin 128, and have been looking at the documentation. Looking at the way it is designed, it looks like it's de…
... /> I've just ordered a Harlequin 128, and have been looking ...wtb: Spectrum and/or Spectrum Plus CaseLooking to buy a Spectrum (rubber key) and a Plus case. I would be interested in a case only, or a non functional machine - don't want to take a wor…
... get a case for my Harlequin project. Would need to be ...Harlequin Rev G AssemblyAre there assembly instructions on the Rev G anywhere? I know there are some component load options wrt PAL vs NTSC on the schematic but I want to m…
Are there assembly instructions on the Rev G anywhere? I know there are some component load options wrt PAL vs NTSC on the schematic but I want to make sure I don't miss anything. I'll be assembling mine as a PAL machine btw, I see no reason these days ...ZXDS 1.3.4Hello, to celebrate the 35th Spectrum (and 10th ZXDS) anniversary, I have prepared [url="http://zxds.raxoft.cz/"]new ZXDS release[/url]. It fixes …
... fixes just one very subtle contention bug in HALT emulation, which ...Fuse 1.4.1 releasedA new release of Fuse, the Free Unix Spectrum Emulator, is now available at the SourceForge project: https://sourceforge.net/projects/fuse-emulato…
... 0x1ffd and 0x7ffd
[*] Set contention for DivIDE/DivMMC EPROM memory ...Fuse for macOS 1.4.1 ReleasedA new version of Fuse for macOS has been released at the dedicated sourceforge project: https://sourceforge.net/projects/fuse-for-macosx/ Note …
... Meunier) (Sergio Baldoví).
[*] Set contention for DivIDE/DivMMC EPROM memory ...Harlequin rev F picture issueHi, Did this project ages ago, and was working fine. Got the spectrum itch today, so got it out. I first turned it on everything was fine. Then…
Hi,
Did this project ages ago, and was working fine. Got the spectrum itch today, so got it out. I first turned it on everything was fine.
Then it crashed, I now just get a screen of black with red lines vertically.
New here, hello all!Hello all, New to the forums, thought I'd introduce myself. Fan of the Spectrum, though I've never had the chance to own one. Was introduced to Si…
... , planning to put together a Harlequin PCB sometime in the future.Loading games from pcI have set up an issue 6a with an opus discovery 1 The opus has had the upgrade from bytedelight of twin floppys and quickdos and is working great. …
... loading works on my harlequin 48k but the harlequin doesn't work ...A Yankee in IraqI'm testing the game on the zx next and it currently hangs right after the game starts no matter what timing regimen and contention pattern is chosen…
... matter what timing regimen and contention pattern is chosen (48k, 128k ... it measuring frame length or contention pattern?
I know ...Best divide for harlequin 48kThis looks awesome as it has AY... https://lotharek.pl/productdetail.php?id=247 Byte delight has a really nice form factor https://www.byte…
This looks awesome as it has AY...
https://lotharek.pl/productdetail.php?id=247
Byte delight has a really nice form factor
https://www.bytedelight.com/?product=brand-new-divmmc-enjoy-pro-mini
And ...zx spectrum 48k issue 6A boot fail- black paperohh whats wrong with this poor specie .. boot fail,, border white & paper black .. when reset it shows the red lines to indicate that the CPU is cycl…
... the ram passes.. but the contention test fails, the interrupt test ...Harlequin 48K - 14MHz Low Profile CrystalDoes anyone know where in the UK I could source a low profile 14 MHz crystal? (AliExpress delivery is end of January 2022). I ordered the below from …
Does anyone know where in the UK I could source a low profile 14 MHz crystal? (AliExpress delivery is end of January 2022). I ordered the below from Farnell - after complaining I received the wrong part, once again they sent me the incorrect replacement.< ...Harlequin 48K, Rev. G - First Time Power UpHello, I have finished soldering all the components on the Rev. G PCB I bought of eBay. [img]https://photos.voica.uk/_datas/i/v/0/iv0uwafhua/i/…
Hello,
I have finished soldering all the components on the Rev. G PCB I bought of eBay.
[img]https://photos.voica.uk/_datas/i/v/0/iv0uwafhua/i/uploads/i/v/0/iv0uwafhua//2021/12/30/20211230170517-713e31c4-me.jpg[/img]
< ...Zero v0.8Pigs can apparently fly because it's the v0.8 update of Zero that no one asked for but is out for public consumption anyway. Grab it [url="https:/…
... behaviour (ZJoyKiller).
- Fixed +3 contention bug (woody)
- Fixed mic ... mode (Hexaae).
- Fixed +3 contention bug (woody)
- Fixed issue ...Are 128K games more likely to crash than 48K ones?Hey, guys. I've been doing some experimenting with various games and even some music demos and apps, and I'm beginning to reach a conclusion that …
... am aware of the memory contention issues between the Sinclair 128K ...Exact emulation of the Snow effectAs the original post on another forum is outdated, and for those who don't know about that forum, I duplicate this info here: At the beginning of …
... half of T4 it cancels contention, but it proceeds keeping fixed ...RealspectrumCan anyone tell me why sometimes when I launch realspectrum it locks up on the welcome screen? I am running it in a DOS shell within windows 98. I'm …
... - there's very little memory contention, and a lot of the ...RealspectrumCan anyone tell me why sometimes when I launch realspectrum it locks up on the welcome screen? I am running it in a DOS shell within windows 98. I'm …
... hardware, make sure that memory contention is *on*. In Control, disable ...My own Home Computer It's true. My company are planning to build a new Home Computer. It will use a Z80 CPU running at 6mhz, 128k Ram and will run all Spectrum and ZX81 …
... writing stuff to VRAM. RAM contention is off when non-speecy ...Anyone got a copy of 'Z80 for primates'?This Z80 lark isnt easy, in fact it makes me feel very much like Washoe the chimp trying to learn learn sign language, I just dont think I've got the…
... above 32768 is sensible (for contention issues with ULA memory and ...THE BEST EMU'I've beem using ZX32 for about a year now.However,certain ROMS such as Double Dragon 1 or Phantomas will not run with this emulator.Is there another,…
... ? That's one - needs memory contention disabled to work (which means ...
