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  • New multi-interface for ZXI have in development new interface for ZX Spectrum. PCB size is similar as K-MOUSE interface and on board is CPLD (programmable logic), up to 1MB st…

    ... . Then is possible disable external memory or external ports or switch between my ... INTERFACE and EXTERNAL device.

    Theoretically is ...
    velesoft velesoft September 2013 Hardware
  • idea: new gaming interface for ZX Spectrum (48k)First of all, I am not an expert this is just an idea of what I would like to see happening in the modern era of the ZX Spectrum. A compact, small, …

    ... ]You can of course use external logic to get rid of ... or whatever.

    For memory card read/writes you'd ...
    joefish joefish November 2013 Hardware
  • DivIDE and Printer InterfaceHello, My situation is, i have a DivIDE 2k11 with through zx bus connector for my zx spectrum. Can i also connected a printer interface, for example…

    ... /> No, this device use own external memory then is incompatible with DIVIDE.
    velesoft velesoft December 2013 Hardware
  • harvard architecture spectrum clone.I got my first +2 before christmas. I'd never given the 128k spectrums much thought, always been a 48k rubber key tradionalist. :smile: I've been me…

    ... selection
    Bit 3 is external memory control for 0x0000 to 0x3FFF ...
    Bit 4 is external memory control for 0x4000 to 0x7FFF ...
    Bit 5 is external memory control for 0x8000 to 0xBFFF ...
    1024MAK 1024MAK January 2014 Hardware
  • ULA snow effectIt's wintertime, you know. [quote="http://ramsoft.bbk.org.omegahg.com/floatingbus.html"]when the I register falls in the range 0x40-0x7F then the UL…

    ... gap.
    During a Z80 memory access (address range 0x4000 - 0x7FFF ... a RD or WR. The external multiplexers on the Z80 address ... mode. However, the ULA dynamic memory RAS/CAS handler still notices ... above, the ULA dynamic memory handler will force RAS low ...
    antoniovillena antoniovillena January 2014 Development
  • ZX Alien BreedNot sure if this has been mentioned already (I did trawl the threads but couldn't see anything :smile: ), but I've always hankered after a Speccy Ali…

    ... .mykeweb.co.uk/csscgc2014/images/external/AlienBreedZX.png[/IMG]


    The logo and '128K Memory' tagline are a nod to ...
    MykeP MykeP January 2014 New game ideas
  • Are there any custom +3 DOS file systems?I'm looking to see if there are any custom +3 DOS disk file systems available rather than the 40 track, 9 sector, 512 bytes/sector (I think that is r…

    ... by Chris Pile, if my memory serves. c'mon guys, it ... a Dr Sunn - my crap memory.....[/COLOR]

    There was ... /write +D floppies in an external 720K B: drive. Oh, and ...
    DEATH DEATH February 2014 Hardware
  • +3 upgrades?Hi this is my first post on becoming a member of this forum and I'm hopeful and excited about some of the hardware I have found. Hi I found my old …

    ... . There is no need for external memory chips because all the code ...
    guesser guesser February 2014 Hardware
  • We could design the LokiWouldn't it be great... if this community would develop what Sinclair himself started but was never finished: a successor of the 128K with 'cartoon l…

    ... -bit internal databus (16-bit external) and a 32-bit wide ... and 2x256 bytewide Serial Access Memory ports, together all 6 ICs ... with it.

    Main Memory will be 72-pin EDO ...
    The_Bert The_Bert March 2014 Hardware
  • THE HOBBIT loading screenHello again, thought I'd have a go at an alternative loading screen for The Hobbit. [IMG]https://dl.dropboxusercontent.com/u/61658082/THE%20HOBBIT%…

    ... a multicolor screen takes more memory, so we would not be ... of location images, or use external storage...
    Einar Saukas Einar Saukas March 2014 Games
  • THE HOBBIT loading screenHello again, thought I'd have a go at an alternative loading screen for The Hobbit. [IMG]https://dl.dropboxusercontent.com/u/61658082/THE%20HOBBIT%…

    ... we may not have enough memory for this. I found a ... 30 locations only, or require external storage (which is not supported ...
    Einar Saukas Einar Saukas March 2014 Games
  • Totally random idea for the hardware nuts to exploreWhen it comes to multi-player games, how hard would it be to generate a second display from a single Speccy, instead of trying to link up machines, s…

    ... building this sort of advanced external gadgetry, but I can't ... at developing one of these external memory-skimming video-generators into an ... being able to shift the memory mapping down over the ROM ...
    joefish joefish April 2014 Hardware
  • Totally random idea for the hardware nuts to exploreWhen it comes to multi-player games, how hard would it be to generate a second display from a single Speccy, instead of trying to link up machines, s…

    ... building this sort of advanced external gadgetry, but I can't ... change the original spectrum display memory map.

    It seemed ...
    Basher Basher April 2014 Hardware
  • Plea for new hardwareI'm posting this as a poll as I want to judge if I'm a solo loon going on about this, or if people really are interested in either of the following S…

    ... for sure, but would an external video device even work on ... have to sacrifice your upper memory to exploit it.

    external power supply if you get ...
    joefish joefish April 2014 Hardware
  • Interface 1bis updateSupport for connecting a standard PC keyboard to the interface?s PS/2 socket, in place of a mouse, has been added. The external keyboard?s output is …

    ... d3bf OUT (SHD),A; Switch memory.
    ;000A LD ( ... is pressed
    ; *
    ; External keyboard input routine
    ;
    Dan Antohi Dan Antohi April 2014 Hardware
  • Interface 1bis updateSupport for connecting a standard PC keyboard to the interface?s PS/2 socket, in place of a mouse, has been added. The external keyboard?s output is …

    ... d3bf OUT (SHD),A; Switch memory.
    ;000A LD ( ... is pressed
    ; *
    ; External keyboard input routine
    ;
    Dan Antohi Dan Antohi April 2014 Hardware
  • Joystick Interfaces on +2AJust found out that my DK'Tronics joystick interface doesn't want to play with my +2A (black). The Kempston port works OK, but not the Sinclair port…

    ... SOFF status bit show if external memory is set.
    [/CODE]
    zub zub April 2014 Hardware
  • Fixing/modding my new +3Hi, In december I won an auction for a working +3 with a dead floppy drive, + a Multiface 3, some disks and tapes, for a very low price (I think nob…

    ... controller and hook up an external 3.5" drive. You would ... D7 of contented and uncontended memory) and one of Guesser's ... the motherboard to make the external socket "A:" instead of "B ... floppy port and have 2 external drives)
    JeffB JeffB April 2014 Hardware
  • Plea for new hardwareI'm posting this as a poll as I want to judge if I'm a solo loon going on about this, or if people really are interested in either of the following S…

    ... off reads to the video memory into its own screen buffer ... routines. But note that this external video RAM is not readable ...
    retrogod retrogod May 2014 Hardware
  • HDMI generation by cloning video ram(coming from [url]http://www.worldofspectrum.org/forums/showthread.php?p=768257&posted=1#post768257[/url]). A thing I was brainstorming about.. Why …

    ... are highly desirable in an external video card. (Other features of ... to be paged into high memory, then skim off reads in ... hardware switch to make the memory cloning listen for writes in ...
    joefish joefish May 2014 Hardware
  • eBay 128K Spectrum RGB cables overheat the Spectrum!?Hi everybody, For a long time I've wondered why Spectrum 128K Toastracks were overheating when using my Retro Computer Shack RGB SCART cable. Today …

    ... using a microcontroller with some memory to build a HDMI signal ... a RGB SCART signal, an external adapter box can always be ... is no need for an external power source!


    Fruitcake Fruitcake May 2014 Hardware
  • MISSING M1 LINE ON +48????I was posting questions about my DIVMMC enjoy not working on one of my +48`s and have now got round to testing if its cpu related.Trouble is the one …

    ... the existing Sinclair BASIC, an external device may use the Z80 ... a machine code instruction from memory. It can then switch it ... 's own ROM into the memory map of the CPU and ...
    1024MAK 1024MAK July 2014 Hardware
  • Loading games from a old PC to a speccy?Hi all I've got an old Pentium 1 200Mhz PC which I'm sure could load games to my speccy seeing as my tape drive is knackered... I remember when w…

    ... games to be loaded from external players or pc's etc ... could fill the entire speccy memory in 2 seconds. This would ...
    dreamscape dreamscape July 2014 Sinclair Miscellaneous
  • Toastrack refurbishmentYesterday I opened a drawer in my old desk and discovered 2 complete toastrack 128s and a board only for the same. As I already have a fully working…

    ... TOTAL current drawn from the external ?9V? power supply. Some of ... they were heat damaged. From memory nothing else on the board ...
    1024MAK 1024MAK July 2014 Hardware
  • analysing program variable usageIf I wanted to count the number of times each variable is referenced while a program is running (not the number of times each variable is referenced …

    ... menu that logs accesses to memory addresses.

    If you ... see how many times that memory address was accessed at runtime ... a real ZX Spectrum without external monitoring hardware.

    Regards ...
    dbolli dbolli July 2014 Sinclair Basic
  • What if Sinclair had released a 16 bit Spectrum?Had Sir Clive not wasted his companies money on the white elephant that was the C5 and instead focused on competing with his rival computer manufactu…

    ... /> Also at that time (if memory serves) the Amiga was seen ... disk drive, defuinately had an external tv modulator and cost at ...
    paranoid marvin paranoid marvin August 2014 Games
  • What if Sinclair had released a 16 bit Spectrum?Had Sir Clive not wasted his companies money on the white elephant that was the C5 and instead focused on competing with his rival computer manufactu…

    ... ]Also at that time (if memory serves) the Amiga was seen ... disk drive, defuinately had an external tv modulator and cost at ...
    MarkTheMorose MarkTheMorose August 2014 Games
  • Bomb Munchies - preview releaseBomb Munchies Preview release Version 12th Jan 2014 [URL=http://s979.photobucket.com/user/MatGubbins/media/bmsix_zpsc33279a2.gif.html][IMG]http://i…

    ... , also all interfaces with own external memory. So with DIVIDE + RTC module ...
    velesoft velesoft August 2014 Brand new software
  • Why on earth did I buy...Couldn't see a topic for this, so apologies if it does exist. Aside from games, what did you buy, and put away in a draw the next (or same!) day - …

    ... 'm just wondering how much memory was left for the actual ... the sense that the entire external library would be attached to ...
    Alcoholics Anonymous Alcoholics Anonymous September 2014 Sinclair Miscellaneous
<1…17181920212223…34>

Latest Posts

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HitBox

Word Docs Hits
external 4K 5.3K
mbo2 2 2
memory 21.8K 32.5K

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