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<1…17181920212223…34>
  • Brazilian TK90X and TK95SpecEmu provides explicit support for Brazilian TK90X. Other emulators provide indirect support (perhaps the "Spectrum 48K NTSC" option in Fuse?). Al…

    ... and case similar to Spectrum 48K. It's by far ... changes to improve compatibility with ZX-Spectrum programs (namely removed ... input port $FE (value 0 indicated Portuguese, value 1 indicated Spanish). The ... to improve compatibility with the ZX-Spectrum where bit 7 ...
    Einar Saukas Einar Saukas November 2012 Emulators
  • The new Superfo cloneHi In the spanish forum speccy.org some guys and me have optimized the superfo clon to have less ICs. The actual design has 39 ICs versus the 45 ICs…

    ... resistors 10K replace with better value 4k7 - for better stability with ... ,...) or connect kempston data with ZX data bus via resistors 100 ... 128 timings. There are more 48K games and they have more ... chips[/QUOTE]

    The ZX Spectrum ROM resets to "00 ...
    antoniovillena antoniovillena December 2012 Hardware
  • Getting PC into HLHello, here's a conundrum for you... Is there a way to obtain the value of the PC register (say into HL) without using absolute addressing such as C…

    ... might as well encode whatever value you're attempting to calculate ... $e1,$e9 occurs in the 48k ROM - which turns out to ... display file (given that the ZX printer is unlikely to be ...
    Battle Bunny Battle Bunny February 2013 Sinclair Miscellaneous
  • Brazilian TK90X and TK95SpecEmu provides explicit support for Brazilian TK90X. Other emulators provide indirect support (perhaps the "Spectrum 48K NTSC" option in Fuse?). Al…

    ... separate options for "48K" and "48K+" (such as ZX-Spin) could also ... from input port $FE, using value 0 by default.
    < ... port $FE will always have value 1.


    ... provide distinct choices for "48K" and "48K+" may analogously also provide ...
    Einar Saukas Einar Saukas April 2013 Emulators
  • The "best" Z80?What's the best Z80 for Spectrums? I know there are differences between brands (Nec, Zilog, Thomson) and technologies (CMOS, NMOS), so what Z80 woul…

    ... 0 then NMOS CPU write value 0 to port BC, ... but CMOS CPU send value 255 to port BC.
    ZX utility use this instruction. [/QUOTE ... thinking to write the second ZX utility that will use ... out, whether the original 48k/128k/+2/+2a/+3 used ...
    introspec introspec August 2013 Hardware
  • DivMMC EnJOY!Coming up... [IMG]http://benophetinternet.nl/hobby/vanmezelf/DivMMC_enjoy_first_render.jpg[/IMG]

    ... br /> I tried a higher value by the way, 4K7, but ... with that value it fails on the toastrack ... too. So 1K5 is the value to get stable results.
    ZX Spectrum models.
    I' ... a lot of toastracks and 48K's this morning, and it ...
    bverstee bverstee September 2013 Hardware
  • DivMMC EnJOY!Coming up... [IMG]http://benophetinternet.nl/hobby/vanmezelf/DivMMC_enjoy_first_render.jpg[/IMG]

    ... causes problems with some 48K machines; I found out ... EnJOY! to work on all ZX Spectrum models.)

    The best value I found was 3K, ... 48K or toastrack.

    So there is not one resistor value ... :
    a. 16/48K - will disable the 1K5 ...
    bverstee bverstee September 2013 Hardware
  • DivMMC EnJOY!Coming up... [IMG]http://benophetinternet.nl/hobby/vanmezelf/DivMMC_enjoy_first_render.jpg[/IMG]

    ... EnJOY! to work on all ZX Spectrum models.)

    So ... 48K or toastrack.

    So there is not one resistor value ... may be automatic detection of ZX model:
    - ZX16/48 detected ... not so good, because some ZX clones use different ZX bus pins...
    velesoft velesoft September 2013 Hardware
  • Elite Kickstarter ProjectAs some of may know Steve Wilcox of Elite is currently close to raising ?60k via Kickstarter to begin manufacturing a USB spectrum keyboard. I have g…

    ... ]http://www.computerandvideogames.com/447934/zx-spectrum-kickstarter-company-faces-allegations ... small claims court if the value is under ?3000.
    If ... would personally have preferred a 48k+\128k style keyboard myself.
    lynn3686 lynn3686 February 2014 Sinclair Miscellaneous
  • IF1Bis problems. The Edge of the Spectrum...Advice is sought from the learned on WoS. I just bought an Interface 1Bis from sunny South Africa. It arrived fast, but unfortunately doesn't work.…

    ... card. Tried in 3 different 48k (issue 2/3/4 with ... since I misread the smd value on Dan's site and ... don't use an original zx spectrum psu (don't trust ...
    Pluto63 Pluto63 March 2014 Hardware
  • SCF/CCF flags - new discoveryI can't believe that no one is interested in discussing the additional, previously undocumented internal state of the Z80 CPU I have discovered recen…

    ... borders instead of black (on 48K the viewer currently assumes that ... no way for the 'unfixed' value of P/V to be ... an interrupt is pending in ZX-State (SZX) snapshots, but this ...
    zub zub April 2014 Emulators
  • Definitive list of games incompatible with +2A/+3 and of compatible versions (if any)I am trying to compile the definitive list of games which are incompatible with the +2A and the +3 and of their compatible versions, if they are pres…

    ... in 128k (with music) as 48k modes, though the game worked ... game register I set to value #5B. I have fix on ... to address #FC00-#FD00 in ZX ram pages 0 and at ... will game usable on all ZX models without raining and with ...
    velesoft velesoft June 2014 Games
  • Fixing my old ZX Spectrum 48K issue 4AHi Guys, I trying to fix my old Spectrum 48K. Looks like my dad used a wrong power supply as the ULA had a bit missing and so did the 7805. So I rep…

    ... /> The value printed should be:

    (a) for a 48k unit ... ) so running in [COLOR="Red"]48k[/COLOR] mode now. :-)

    So looks like my old ZX Spectrum is working as it ...
    Brian Brian July 2014 Hardware
  • Seen any ebay madness?? post it here !!!What with some high prices fetched on speccy games over the past few days , thought it might be an idea to keep a WOS record of some of the higher fi…

    ... .co.uk/itm/Sinclair-ZX-spectrum-computer-48k-/251607124723[/url]

    value but this seems pretty crazy ... .co.uk/itm/2-sinclair-zx-spectrum-2-3-joystick-adapters ...
    Morkin Morkin August 2014 Sinclair Miscellaneous
  • Seen any ebay madness?? post it here !!!What with some high prices fetched on speccy games over the past few days , thought it might be an idea to keep a WOS record of some of the higher fi…

    ... ?119.99 to a games value.

    Oh, and that ... -GAME-RUNESTONE-BOXED-Cassette-Sinclair-ZX-Spectrum-48K-BY-FIREBIRD-/251683924293?pt ...
    SimonLCFC SimonLCFC October 2014 Sinclair Miscellaneous
  • Ensure my interrupt handler begins at the same T-stateHi! Is there a way to ensure that an IM 2 interrupt handler starts always at the same T-state (related to the moment the ULA triggers the INT line, w…

    ... in one of issues of ZX Guide:
    [CODE]LD BC ...
    SUB C ;did the value of D increase?
    SBC ... C contains
    ; #11 for 48K spectrums
    ; #81 for "green ...
    introspec introspec November 2014 Development
  • AVR ZX Spectrum V2_0Good time! Glad to present my new development - AVR ZX Spectrum V2_0. Sorry, have no english version of this video. [url]http://www.youtube.com/watch…

    ... latest SpecEmu emulating ZX-Spectrum 48K with "normal" timing, minimum value where attribute ... means it's not emulating ZX-Spectrum 48K timings correctly for screen ...
    Einar Saukas Einar Saukas December 2014 Hardware
  • Missing in ActionThe more I go in my loft the more I find "Missing in Action" files . Trouble is I am new to this. I have done the tzx's for them but cannot upload th…

    ... : it fitted my new small 48k Spectrum footprint brilliantly .This ideal ... switch as well . But the 48k Spectrum is unbeatable for its ... portable age and although the 48k was never portable , it ... "The ZX Spectrum on your PC" was very good value for about ...
    harriusherbartio harriusherbartio August 2015 MIA/STP/SDP
  • 128K Toast Rack / +2 Grey Bug Fixed english ROM ?Just spotted this on ebay before ending: http://www.ebay.com/itm/1x-Sinclair-ZX-Spectrum-128K-Toast-Rack-2-Grey-Bug-Fixed-english-ROM-/26206065205…

    ... games designed for 16k and 48k machines, the most compatible "ROM ... changes compared to the original ZX Spectrum ROM (as Balford described ... fixed "ROM" may be of value.

    Can a 128k ...
    1024MAK 1024MAK October 2015 Hardware
  • Best composite mod informationJust got my 16K (Issue 3) working. I'm in NTSC land so I need to run a composite signal through my PAL<->NTSC converter. I know there are a ton o…

    ... says, on the ZX Spectrum 16k or 48k boards, it's normally ... an electrolytic capacitor in series. Value 100uF, 16V rated.

    1024MAK 1024MAK October 2015 Hardware
  • Jiiira's Sparrow LITEHi All, Just for info .. :) big eprom, cheap 32KB ram and etc. i don't know specification .. :) https://youtu.be/NbI7E1aebrM modern speccy .. …

    ... using one in an original 48k case for a few months ... . I found that my calculated value of 33ohm to make the ... loud. Can't remember what value I ended up with, I ... have OpenSE, Original Sinclair 48k, Gosh Wonderful, ZX Diagnostics and Sinclair Test ...
    -B- -B- January 2016 Hardware
  • Suggestion for ZX Uno improvementsI really enjoy my ZX Uno, however, I do see some improvements that I think could be made to the Uno. 1) When you press CTRL-ALT-Backspace or when …

    ... [/code]

    The value 4 is the delay after ... a master reset. The value 16 is the first ... the 48K Cargo ROM is about, nor Rooted ZX Spectrum, ... fast".

    Rooted 48K is a back door that ... them unofficially. In the ZX-One crowdfunding will not ...
    antoniovillena antoniovillena June 2016 Hardware
  • Need some help repairing an issue 3 spectrumI am looking for some help repairing an issue 3 speccy, here's what I tried so far. The speccy is not booting up correctly, when using the diagnos…

    ... these lines. In a 16k/48k ZX Spectrum, of these, only /RESET ... from a normal very low value (less than 2 ohms) to ... a much higher value (typically greater than 100 ohms ...
    1024MAK 1024MAK August 2016 Hardware
  • Brightness level of non-bright attributes on classic ZX 48Does anybody know what was a brightness level of non-bright attributes on classic ZX 48? Was it the same on 128, +2 and +3? I can see on wikipedia a…

    ... and hardware picture generation inside ZX. They are both important to ... Wikipedia page with the 85% value, calculated from the voltages from ... source link correspond to original 48k? I've sent a question ...
    moroz1999 moroz1999 September 2016 Hardware
  • Composite video ghost image on ZX Spectrum 128K +2Hi, I have a ghost image on the composite video out on my ZX Spectrum 128K +2 and have run out of ideas of what could be wrong. Does anybody have a…

    ... +/-10% for the 16k/48k machines (Ref: ZX Spectrum service manual) and ... the electronic industry. So your value of 10.98V is just ... resistors to obtain an accurate value (they shunt each other when ...
    1024MAK 1024MAK September 2016 Hardware
  • Send in the ClonesPlease name all the Spectrum clones out there ( I would say I need it back on my desk in 5 minutes , but I will be a bit more generous in this case!…

    ... repair (not unlike the normal ZX Spectrum in this respect ) But ... repair (not unlike the normal ZX Spectrum in this respect ) But ... clones of ZX Spectrum made in exUSSR can provide some value only ... the exUSSR, the old ZX Spectrum 48k clones you can get for ...
    Black_Cat Black_Cat April 2017 Hardware
  • Trying to enter a line from a book fails for some reasonI am reading through the book "[i]Spectrum Machine Language for the Absolute Beginner edited William Tang[/i]". I have got to the section where I nee…

    ... . The function should return a value between 0-15 for characters ... -entered the lines into a 48k emulation Speccy and it all ... ] and a [b]Recreated Sinclair ZX Spectrum[/b] to use as ... way of entering data in 48k mode. It is supposed to ...
    Balrockus Balrockus April 2017 Sinclair Basic
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