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Non-Ferranti ULA 6C001E-7?Hello! I don't like Iss2 boards that much but after revising one Speccy like that for a friend, the results were so positive that I decided to have …
... ever seen a 6C001E-7 ULA with no indication of "Ferranti ... -
Heatsink for ULAHi, My Speccy 48k issue 4s starts to get temperamental when it's been on for a while. Machine itself is fine but loading gradually becomes more unre…
... chum on Twitter suggested the ULA might be getting hot.
ULA might cure it? Question is ... put a heatsink on their ULA?
Cheers ... -
ZX81 ULA Swap questionHi Can someone remind me if all three versions of the ZX81 ULA are electrically compatible? I just bought a ZX81 with an older ULA, so it lacks the …
... three versions of the ZX81 ULA are electrically compatible? I just ... a ZX81 with an older ULA, so it lacks the backporch ... happen to have a good ULA 2C210E. Can I simply swap ... -
Fully refurbished ZX Spectrum 48K boards incl. ULA- Including ULA (version that [URL="http://www.bytedelight.com/?p=41"]corresponds to the board issue[/URL] - click to find out more about ULA version…
- Including ULA (version that [URL="http://www. ... to find out more about ULA versions)
- All new electrolytic ... -
Retro Asylum 116 - The SEGA Master System[img]http://retroasylum.com/wp-content/uploads/2015/05/116.png[/img] The Drisk, Ally & Steve jump into the Retro Asylum studio and look back at th…
... console that was the SEGA Master System!
https://itunes ... -
Retro Asylum 116 - SEGA Master System Specialhttp://retroasylum.com/wp-content/uploads/2015/05/116.png The Drisk, Ally & Steve jump into the Retro Asylum studio and look back at the classic 8…
... console that was the SEGA Master System!
https://itunes ... -
Ferranti ULA ULA5C112E-3 ICBeen clearing out some computer bits and I have a ULA (part number ULA5C112E-3, taken from an Issue 2 48K if I remember correctly and working when it…
... bits and I have a ULA (part number ULA5C112E-3, taken ... -
ULAAre ULA's (for Spectrum 48k's) interchangeable through the different issues? To give some background, to work out what was wrong with an old speccy I…
Are ULA's (for Spectrum 48k's) ... , I tried an issue 3 ula in an issue 2 board ... was done. The issue 3 ULA was then placed back in ... -
ULA 1E7 in 3B board?Hi all. Any comments on the following would be appreciated. I have an issue 4a and an issue 3b Spectrum. While having a look around inside the 3b …
... noticed it contains a 1E7 ULA. I then opened my ... it has the same model ULA.
Having read ... onwards which had the 7 ULA, whereas the 3b should ... me has just changed the ULA?
What's ... that I understand the 7 ULA may generate a clearer ... -
The history of ESXDOS, the DivMMC and the DivMMC EnJOY![img]http://benophetinternet.nl/hobby/divmmc_history/1%20esxdos.jpg[/img] These are the stories behind esxDOS, the most popular operating system e…
... />
Velesoft is the Bug Master ;) I can always count on ... an Ethernet interface, Real Time Clock, etc, there is a lot ... -
ULA Replacement??I searched, but maybe I just missed it. Has there (or is there) anyone working on a ULA replacement either as an FPGA or CPLD package? Or, perhap…
I searched, but maybe I just missed it.
Has there (or is there) anyone working on a ULA replacement either as an FPGA or CPLD package? Or, perhaps something else such as a microcontroller?
Thanks -
Less MIA - 007 Trans-Master (1988)(ZX-Guaranteed)[+3 disk]Hi all :) I'm very happy with this title :) pure MIA :) have nice protection on one of track's :) and working very very nice ... i convert Alien …
... .org/wos/007transmaster/007%20Trans-Master%20(1988)(ZX-Guaranteed)(Side ... .org/wos/007transmaster/007%20Trans-Master%20(1988)(ZX-Guaranteed)(Side ... -
Question of contentionI'm not desperate to go digging through technical descriptions in depth, but one thing bugs me about the Speccy's video contention model - and that's…
... the amount of data the ULA is extracting from the ... there's 224 T (224 clock ticks) per line of the ... br />
So can the ULA access memory faster than the ... , not 8, so the ULA must be fetching 4 bytes ... />
So why does the ULA appear to fetch data in ... -
Bizarre ZX Spectrum faults (also possibly relevant to Spectranet compatibility problems).I'm attempting to repair an issue 4A 48K ZX Spectrum and am encountering some very strange problems. For my own records I've given this computer the …
... /> I tried another 6C001E-7 ULA, taken from a working issue ... perfectly when fitted with the ULA from ZX285.
I ... a Spectrum ULA is not faulty, it has a clock input and ... -
Retroleum Nebula - A Spectrum ULA replacement moduleHey you guys.. Just wanted to mention a new Spectrum doobrie created by myself (Phil Ruston) and Alessandro Dorigatti: Namely, the Nebula - A Spec…
... , the Nebula - A Spectrum 48 ULA replacement module. You can read ... .uk/electronics-articles/nebula-spectrum-ula-chip-replacement-module/
ULA book:)
Cheers,
So for my first trick...I'm sure people have already used the AD724 or AD725 on other 8 bit machines, and i know the Harlequin uses the 724, but not seen anyone trying to us…
... the output straight off the ULA, bypassing the TEA2000 completely. The ... work directly with a 4FSC clock, which means it could be ... from pin 1 of the ULA.
Output should be ...Currah Microsource ULA & ROMI have a few original (over one hundred) brand new (1986) Microsource ULA's and ROMs in prefect condition. Is anyone interested? My user name may …
I have a few original (over one hundred) brand new (1986) Microsource ULA's and ROMs in prefect condition.
Is anyone interested?
My user name may help authenticate this post.New "Sh*t Game Time" video, Kung-Fu Master for Speccy, oh that MUSIC!Hi guys and subs, new requested Sh*t Game Time video now up and live, this time It's the speccy's turn with Kung-Fu Master,...hold on to your ears wi…
Hi guys and subs, new requested Sh*t Game Time video now up and live, this time It's the speccy's turn with Kung-Fu Master,...hold on to your ears with that music!!!!
All the best, Zeus.
https://www.youtube.com/watch?v=8CnaABBz5TIMemory and Replacement ULA modules.Thought you might like to see my future proofed 48k version 6A with some upgrades fitted. Has had the following... Recap. Traco Power TSR 1-2450 p…
... .zigg.net/
Nebula Spectrum ULA Chip replacement module from... http ... .uk/electronics-articles/nebula-spectrum-ula-chip-replacement-module/
Runs ...How to turn OFF the "ULA Plus"??Hi. We've made a platform-game for 128k. While testing it on 2 machines with ULA+ we have noticed the colours are crap. Can You suggest h…
Hi.
We've made a platform-game for 128k.
While testing it on 2 machines with ULA+ we have noticed the colours are crap.
Can You suggest how to turn off the ULA+ in the code?Contended memory article on WikipediaYeah, apparently there's one. https://en.m.wikipedia.org/wiki/ZX_Spectrum_Contended_Memory [quote] However, the ULA must wait for a Z80 read or wr…
...
[quote] However, the ULA must wait for a Z80 ... Z80's clock and access the memory. As the ULA has no ... is in progress when the ULA must read video data, the ...Digital Clock in Game of LifeY'know Conways Game of Life? A [url="http://www.worldofspectrum.org/infoseek.cgi?regexp=^Life$&pub=^Sinclair+Research+Ltd$&loadpics=3"]version[/url] …
... /questions/88783/build-a-digital-clock-in-conways-game-of-life ... /111932#111932"]digital clock.[/url]
[img]https ...ZX-Paintbrush and global palette and ula+ supportHello, I think I need some help for the palette issue of ZX-Paintbrush. I want to check whether the way I'm about to clear the palette handling i…
... the user activates ula+ feature (by opening the ula+ palette editor, ... /> When I now enter the ula+ palette editor...
[img ... with the new option "Deactivate ula+ palette". This switches back ... colours of the last selected ula+ palette unchanged. To reset ...No CLK on issue 2 ULA pin 32I'm trying to fix an issue 2. The symptoms are as follows:- Black and white bars on screen, colours near impossible to tune in, although these po…
... of CLK on the ULA, but the ULA's I'm using ... .
Working back from the ULA I tested and changes the ...ULA+Does the ULA+ have to be on before writing a palette? In the examples I've seen, they all enable the ULA+ before writing the palette. Maybe I sh…
Does the ULA+ have to be on before ... seen, they all enable the ULA+ before writing the palette.
ZX 81 / TIMEX TC1000 2C210E ULA'sHi, up for sale: 11x tested 2C210E ULA's, for the ZX Spectrum ZX81 or Timex TC1000. Asking price £29 shipping included to EUROPE, £33 for the …
... :
11x tested 2C210E ULA's, for the ZX Spectrum ...LnxSpectrum - one of the best emulators?Anyone is using the LnxSpectrum? Supports DivIDE (master and slave, up to 1MB of memory), RTC, DMA (!), SAA and 2xAY, ULA+, K-Mouse, CPU up to 20 …
... LnxSpectrum?
Supports DivIDE (master and slave, up to 1MB ... ), RTC, DMA (!), SAA and 2xAY, ULA+, K-Mouse, CPU up to ...Spectrum games collection for saleHi all I'm having a clear out and all my old ZX Spectrum games must go. The reason being is I'm now marrried and I need to give the other half so…
... Accolade
Gregory Loses his clock Mastertronic 1989
Growing pains ... Hit Squad Rambo Kung Fu Master Fighter Pilot Ghostbusters
Konami ...ZX Spectrum 48k ULAlooking for a ZX Spectrum 48k ULA Thanks Phil
looking for a ZX Spectrum 48k ULA
Thanks
Phil
