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  • Spectrum and Z80 emulators with Python APIHello everybody, It may be the right time to create a topic for these two emulators. They are not at the initial release point yet, but might be w…

    ... be implemented later when the timing issues and questions discussing in ...
    kosarev kosarev May 2019 Emulators
  • Loading Schemes > 1-bit per 2 edgesHi Guys, I'm just having another look at loading schemes again (a subject that interests me). Does anyone know if there any loading schemes t…

    ... having 4 or 16 different timing ranges for each edge of ...
    BloodBaz BloodBaz August 2019 Games
  • ZEsarUX Beta 8.1Hi! I have uploaded a new ZEsarUX 8.1 BETA version. You can download compiled versions for Windows, Mac, and the source code from: https://gith…

    ... resolution
    Improved accurate Z80 timing: IM mode 0 is 1 ...
    chernandezba chernandezba November 2019 Emulators
  • What are the "lost" Ultimate arcade games?I've always been really curious to know what Ultimate did before they were Ultimate, and I've been having a little dig around. We know for sure t…

    ... know they made, and the timing and connections fit.

    Rev_Stuart_Campbell Rev_Stuart_Campbell November 2019 Games
  • ZEsarUX 8.1 stableHi! I've uploaded a new ZEsarUX 8.1 stable version. Go to the github released webpage to download it: https://github.com/chernandezba/zesaru…

    ... resolution
    Improved accurate Z80 timing: IM mode 0 is 1 ...
    chernandezba chernandezba February 2020 Emulators
  • GZX 2020.1 ReleasedHi, I just released [url="https://github.com/jxsvoboda/gzx/releases/download/v2020.1/gzx-2020.1.zip"]GZX 2020.1[/url]. [youtube]3AOQETbfrPA[/yo…

    ... The Cube / TGM)
    [*]Fix timing of ld (HL), NN which ...
    Chip Chip March 2020 Emulators
  • Fixing a ZX Clone from .ru - 27 years late.Hi there, I've currently assembled another russian clone a "Compact 256 Turbo" from a PCB I bought. The machine appears to be fully functional and o…

    ... highly interested in fixing the Timing so I can watch Scorpion ... Demos on the Compact 256. Timing seems to be largely compatible ...
    Shockwav3 Shockwav3 May 2020 Hardware
  • Speed comparison of BASIC CommandsHi everyone, I reactivated my account (thanks Lee!) due to starting to code some BASIC with my daughter. In the tips and tricks thread there is a …

    ... it too complicated due to timing being affected by its location ...
    48K 48K July 2020 Sinclair Basic
  • Is it me or is it a terrible year for luck.It has really been one of those years this year for me. Few health issues start of the year, then had holiday planned, couldn't go because of the cov…

    ... a car for, so great timing to have a car accident ...
    Your Spec-chum Your Spec-chum September 2020 Chit chat
  • Microdigital TK95 / TK90X - my experiencesAs asked for by Renegade [url="https://worldofspectrum.org/forums/discussion/58189"]here[/url] I'll do a short writeup of my experiences with my TK90…

    ... extensive testing of the machines timing and compatibility then (the newer ...
    Shockwav3 Shockwav3 February 2021 Hardware
  • 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 ...
    mark8bit mark8bit February 2021 Hardware
  • 80s and 90s commedians in the 21st centuary. Still funny?I was watching a rerun of 9 / 10 Cats Does Countdown on the internet. The guest from dictionary corner was Vic Reeves. He really was not funny, his b…

    ... laugh. Les because of his timing, word choice, faces and turns ...
    Scottie_uk Scottie_uk March 2021 Chit chat
  • Why Sir Fred, why?So I thought this morning I would give Sir Fred a bashing. I always liked the idea of the game, but found it too hard and gave up too easily. So here…

    ... />
    First problem here is timing the jump, after quite a ...
    Luny Luny November 2021 Games
  • 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 ...
    Swevicus Swevicus February 2022 Games
  • Building a ZX Spectrum 3B, Looking for PartsAs the title says, I'm attempting to build a new ZX Spectrum, but I'm having some trouble locating all of the parts. Thus far, I've got all of t…

    ... in the US, so the timing on these isn't exactly ...
    DistantStar001 DistantStar001 March 2022 Hardware
  • New (latest) Version of #CSpect: SpecNext Emulator for Windows, Linux and OSX by Mike DaillyNew latest Version of #CSpect: SpecNext Emulator for Windows, Linux and OSX by Mike Dailly V2.15.2 As seen on Facebook yesterday: [quote]Mike D…

    ... estimates for the right HBlank timing are "missed" and the line ...
    Luzie Luzie March 2022 Emulators
  • is a arduino uno / nano fast enough to talk to a specie ?my current project is to load games onto the specie via SD card / Arduino uno / nano although i suspect that the micro controller will not be able to…

    ... 20 or so random ones. timing is a problem, i put ...
    mark8bit mark8bit April 2022 Hardware
  • WiP Raspberry Pico Microdrive Hardware EmulatorDecided to take the plunge and learn how to program a Raspberry Pico Micro Controller and, after messing around a lot with Oqtadrive, decided to crea…

    ... the emulation which needs critical timing i.e. no interrupts.
    TomD TomD October 2022 Hardware
  • 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 ...
    weiv weiv October 2022 Emulators
  • Emulator compatibility with real SpectrumHi emulator programmers... Having spotted for the last 6 months that my iPAQ is still missing a Spectrum emulator I started typing last tuesday - an…

    ... .g. adding a more precise timing control, taking the slower memory ...
    Anders Anders September 2001 Emulators
  • Emulator compatibility with real SpectrumHi emulator programmers... Having spotted for the last 6 months that my iPAQ is still missing a Spectrum emulator I started typing last tuesday - an…

    Timing wasn't an issue for ... not do anything about the timing.
    Even correct R-register ...
    Anonymous Anonymous September 2001 Emulators
  • Convert TAP to TZXSubject says it all really! I've got this tap2tzx, but it's blatantly for UNIX use (C programs and compiling, ugh!) Is there a Windows or DOS execu…

    ... determine the loading structure and timing.

    Regards

    Andrew Barker Andrew Barker November 2001 Emulators
  • Is there anything new to comeApart from doom. I personally don't think there has been anything all that innovative on the pc. Whereas the Speccy had handfuls of games in that c…

    ... when you need split-second timing.

    Deus Ex... "Deus ...
    Alessandro Grussu Alessandro Grussu August 2001 Games
  • Tzx-list?Hi, I was wondering if someone has put together a Missing Tzx-list? I feel it is a little awkward trying to look through the entire list of already e…

    ... Mike about TAP. You loose timing and pause information if you ...
    Andrew Barker Andrew Barker November 2001 MIA/STP/SDP
  • speccy soundI know this sounds a bit vauge but can anyone explain to me why the music on some 48K games was so amazing and so much better than the usual beeper s…

    ... take a lot of precise timing.
    cyborg cyborg December 2001 Sinclair Miscellaneous
  • line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…

    This may be useful for timing your routines:

    ld ...
    cyborg cyborg October 2001 Sinclair Miscellaneous
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