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ECHOSOFT ORGAN MASTER ( currys) Keyboard etcHi - is anyone after the old Echosoft organ / keyboard with interface software etc ? Came with my toast rack when I bought it as a bundle from Curry…
... .org/infoseek.cgi?regexp=^Organ+Master$&pub=^Currys$&loadpics ... .org/infoseek.cgi?regexp=^Organ+Master$&pub=^Currys$&loadpics ... -
The I register pointing to $40–$7f causes ULA snow and a crash. Or does it?I have heard it from numerous sources, including a few members of this forum, that 128K/+2 machines crash if the I register points to a range of $40–…
... no avail. I get the ULA snow, sure thing, but that ... -
New colour palette for 16K/48K/+ machines, based on ULA YUV voltagesI’ve made a colour palette for 16K/48K/+ machines, based on the YUV voltage tables in Chris Smith’s book The ZX Spectrum ULA. This colour palette …
... ’s book The ZX Spectrum ULA.
This colour palette ... use the original Sinclair Ferranti ULA, 5C102E, 5C112E or 6C001E. It ... -
6C001EE-7 ULA A ULA ID I haven't seen before, possibly a misprint? Found on an issue 6A board in a rubber key 48k. Any ideas? [img]https://pbs.twimg.com/media…
A ULA ID I haven't seen before, possibly a misprint? Found on an issue 6A board in a rubber key 48k. Any ideas?
[img]https://pbs.twimg.com/media/DbYC8aNXkAANAm4.jpg:large[/img] -
where can i get ula's from?i want a nebula ula from retroleum but they have sold out. i also googled it and had a look on ebay and i cant even find any normal ula's either.
i want a nebula ula from retroleum but they have sold out. i also googled it and had a look on ebay and i cant even find any normal ula's either. -
Spectrum 48K / composite mod / LCD TV: voltages out of the ULAHello Spectrum World I have juste bought again my first computer on ebay... a Speccy 48k issue 2 with a 5C112E-2 ULA. Just had to replace TR4 and …
... 2 with a 5C112E-2 ULA. Just had to replace ... maybe a problem in the ULA could cause b) or ... great book "The ZX Spectrum ULA: How to design a ... br /> Patrick
My ULA Y output:
[img]https ... ://i.postimg.cc/HxDsHvPC/ULA-Y.jpg[/img]
... -
New Kung fu master!Remake Kung Fu Master! http://uprising-games.com/home/mister-kung-fu/ [img]http://uprising-games.com/wp-content/uploads/2018/12/LEV1.png[/img]
Remake Kung Fu Master!
http://uprising-games.com/home/mister-kung-fu/
[img]http://uprising-games.com/wp-content/uploads/2018/12/LEV1.png[/img] -
Super MasterFor the fans of Mastermind [img]https://2.bp.blogspot.com/-gBf2YHl6z9U/XDPRzSY312I/AAAAAAAAQDQ/D6b3vgFljkkD1p3IzMcpLAjpM7zyNEiaQCLcBGAs/s320/sm.pn…
... .blogspot.com/2019/01/super-master.html"]https://planetasinclair.blogspot.com ... -
KUNG-FU MASTER, THEN (1986) & NOW (2018) - ZX SPECTRUMKung-Fu Master, a cracking arcade game back in the mid 80's saw an absolute dreadful conversion from U.S.Gold (suprise suprise) back in 1986 but fas…
Kung-Fu Master, a cracking arcade game back ... these versions of Kung-Fu Master.
https://www.youtube.com ... -
Fuse/SPIN vs Spectaculator border timingsHello, I'm trying to figure out at which moments the 48K ULA samples the current border color into its internal latch. To do that I wrote a small …
... which moments the 48K ULA samples the current border ... .githubusercontent.com/kosarev/zx/master/test/border_timing/screenshot.png< ... .com/kosarev/zx/blob/master/test/border_timing/border_timing.tap ... .com/kosarev/zx/blob/master/test/border_timing/border_timing.asm ... -
ZX Interface 1Hi, I have a ZX Interface 1 which I have bought online. It does not seem to work. When using CAT1 or any other specific commands, the compute…
... ' transistor soldered directly on the ULA. Ula is LA15-302.
clock is working on pin5 of the ULA.
ULA?
And another question ... -
New Game: ZX Master MindDo you remember the board game Master Mind? Try to challenge your spectrum. Be careful, it won't be easy to win against it. Please see the "Readme…
... you remember the board game Master Mind?
Try to challenge ... -
Tron Software - Ninja Master / Oriental HeroI just had a go at both of Tron software's games. Oriental Hero is, as it was at the time, utter unplayable trash. I owned that one back in the d…
... badly spent.
Ninja Master is odd though. It has ... -
doubt about swapping ULA in an issue 2 boardIs it possible to swap a 6C001E-6 ULA type with a 5C112E ? I have this issue 2 board that is not booting, it shows me a black border with horizont…
... to swap a 6C001E-6 ULA type with a 5C112E ?
ULA.
Diagnostic ROM doesn't ... would like to swap the ULA and Z80 to narrow the ... like to try swapping the ULA as I have another working ... -
The ZX Spectrum ULA bookFound a copy of the ZX Spectrum ULA book by Chris Smith that I've never read. This is a new book that was given to me years ago and I've never got ro…
... copy of the ZX Spectrum ULA book by Chris Smith that ... -
zx spectrum ULA upgradei have a issue 2 zx spectrum 16k which i upgraded to 48k .. i believe the ULA is faulty (ULA5C112E-2) .. seems intermittent i know a later one can be…
i have a issue 2 zx spectrum 16k which i upgraded to 48k .. i believe the ULA is faulty (ULA5C112E-2) .. seems intermittent i know a later one can be used but should some resistor values be changed to match it ?
thanks mark .. -
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…
... connections..i checked for a clock out of the CPU using ... detected the 3.4 mhz clock,i also checked for the ... a known working -7 type ULA. checked most of the signals ... -
New Version of ZEsarUX v9.3 Beta 1 availableNew Version of ZEsarUX v9.3 Beta 1 available Downloads: [url="https://github.com/chernandezba/zesarux/releases/tag/9.3-25062021"]https://github.co…
... 2021
Added Sega Master System emulation
Added .sms ... QL and SN audio chips (Master System, SG1000, etc)
Added ... window height
Fixed Next ULA Scroll to use registers 0x26 ... -
48k ULA heat sink required ?ULA heat sink worthwhile mod or just internet hype ? if worthwhile is a cheap heat sink going to cut the mustard ? i wonder if anybody has done any …
ULA heat sink worthwhile mod or just internet hype ? if worthwhile is a cheap heat sink going to cut the mustard ?
i wonder if anybody has done any before & after heat tests ? -
ZEsarUX 10.0ZEsarUX 10.0 is out! Download it from : https://github.com/chernandezba/zesarux/releases/tag/10.0 Changes: Version 10.0 - Clive Sinclair edi…
...
- New machine emulated: Sega Master System
- "Time machine" features ... br />
Added Sega Master System emulation
Added . ... QL and SN audio chips (Master System, SG1000, etc)
Fixed Next ULA Scroll to use registers ... -
Spectrum Abuse...Just got some new Spectrums in to repair ( I find it a great way to relieve stress, excepting when I do something daft while fixing them... ) One …
... at another... No video, no clock. ULA seems dead, but no video ... what they did to the ULA to stop it working.
zx spectrum +2A / +2B no clock signal or video display / gate array dead ?scratching my head with this sick specie .. it is a issue 4 .. i was hunting for R45 that goes between the clock signal of cpu and gate array,, but i…
... R45 that goes between the clock signal of cpu and gate ... removed from this revision.. the clock also goes to the 74HCU04 ... but no sign of the clock . could this chip be killing ... the clock or is that pesky gate ...Interface 1 ULAIs there a technical description of the functionality of the Interface 1 ULA, similar to the "The ZX Spectrum ULA" book? Specifically, what is the…
... functionality of the Interface 1 ULA, similar to the "The ZX ... Spectrum ULA" book?
Specifically, what ... the ROMEN lines of the ULA? Superficially, ROMCS feeds into the ...New release of ZEsarUXFound today by chance on: [url]https://github.com/chernandezba/zesarux/releases/tag/10.1-13122021[/url] [quote]ZEsarUX-10.1 Beta1 Pre-release che…
... />
Added setting to change ULA Data bus value
Added ... realvideo enabled on machines: Colecovision, Master System, MSX, SG1000, SpectraVideo
I just bought a second hand BBC MasterI have had the notion for a while to get myself a old Beeb - maybe a scrappy one and fix it up - recap its PSU or whatever. Well I gave in yesterday …
... ebayer has the three BBC Master Manuals and four other books ...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 …
... - they have new features, new clock speeds, and are more power ... /> GPU? Are you using the ULA or not? If you're ... also advise including a internal clock - I believe the SAM had ...Hardware section....Wonder why here is no specific hardware forum??? No one ever touched a soldering iron here? (o; I'm kinda lost here with my hardware stuff under: "…
... a problem using the 14Mhz clock signal for this and just ... ;
Though there is some ULA schematic out there using normal ...InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... the rising edge of the clock in the last T state ... the routine finishes before the ULA has pulled /INT high again ... interrupt finished just as the ULA pulled /INT low, the EI ...Interrupts details questionSuppose I am writing a game and I want to use interrupts to measure time, draw the screen without flicker, maybe to poll keyboard etc. What kinds of …
... />
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The ULA is responsible for generating the ... halted by stopping its clock while the ULA performs its access. After ... attr pair, it releases the clock so that the z80 can ... region where the z80 and ULA might simultaneously access is ...Sparky eZX-BASIC Project in need of FPGA ExpertYou probably are not familiar with this project, but it is a computer system based on Zilog's new eZ80 chip and the OS is a superset of ZX BASIC. Ju…
... predicted and interlaced with the clock for easy video interfacing. However ... any wait states programmed in) clock cycles to complete, the display ... can't invert the CPU clock to run the display hardware ... a benvolent and cooporative bus master of old, the eZ80 is ...
