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<1…16171819202122…34>
  • 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 …

    ... /> Bit 6 Symbol Shift
    Bit 7 Caps Shift

    This ...
    Dan Antohi Dan Antohi April 2014 Hardware
  • Double-Buffer ScreenFor my Alien Breed Speccy re-write I decided to use a Double Buffer (DB) or 'Back Screen' to draw all the game action onto, before shuffling the whol…

    ... huge, multi-block sprites and shift them up and down the ...
    LuMan LuMan April 2014 Development
  • Venting....!!Grrrrr! Am convinved I'm being scammed by a past customer through Paypal. Apologies for venting and randomly banging on , but needed to get it out …

    ... and sod the truth or logic of it, meaning muggins here ...
    Amfoot Amfoot May 2014 Chit chat
  • Optimal shifting for set pixel?Hi, I'm optimizing my set pixel code. For speed. But without using partitioned memory (i.e. a table on 256 byte boundary) I have optimal memory addr…

    ... a ; avoid special condition without shift / i.e. jr z
    ld b,a ; our shift counter
    xor a ; a ... =0
    scf ; our shift bit
    loop: rra ; to ...
    tstih tstih May 2014 Development
  • ZX-FPGA dev boardI've been sporadically working on this: [IMG]http://photo.alioth.net/tmp/spectradvi.png[/IMG] It's an FPGA dev board for the Spectrum. It uses a CP…

    ... . It uses a CPLD to shift the voltage levels between the ...
    Winston Winston June 2014 Hardware
  • New Spectrum User - Inveterate UpgraderI've been asking a few questions about my Speccy, which is the first I've owned despite my advancingh years. I was a C64 kid, but please don't hold …

    ... , and half the keys and shift keys didn't work, so ...
    Wiffleplop Wiffleplop July 2014 Hardware
  • Parallax scrolling - Shadow Of The Beast tech demoHi there folks! I thought I'd post what I've been pottering around with for the last couple of weekends. I've been experimenting with doing multi-la…

    ... program to 'bake in' the logic, so you'd instead have ...
    Kayamon Kayamon July 2014 Development
  • BASin + INKEY$ + SymbolShiftHow can I get BASin to recognise SymbolShifted keys with INKEY$ while running a program? The Help tells me that Control = SymbolShift, but I've tried…

    ... I've tried Ctrl+Key, Shift+Key, Alt+key (both the ...
    Battle Bunny Battle Bunny July 2014 Sinclair Basic
  • Bypassing bits of faulty ULAs: the LOAD!Hi everybody, Recently I had a sick Spectrum sent to me. The symptoms were that the machine would run fine, except that it wouldn't load. The border…

    ... />
    Attaching my trusty Saleae logic analyser showed that pin 33 ...
    Spirantho Spirantho July 2014 Hardware
  • Manic Miner loading screen adjustmentHad half an hour spare earlier and wanted to try a few things. Always like to learn anyways even now. [URL="http://www.yellowspider.co.uk/speccy/Man…

    ... compare and I think bit rotation *sigh*

    Unsure if ...
    spider spider July 2014 Games
  • ZX Spin start/stop tape detectionHi, Does anyone know what logic ZX Spin uses to detect when to automatically start/stop the tape? I have a custom loader that causes ZX Spin to aut…

    ... />
    Does anyone know what logic ZX Spin uses to detect ...
    Kayamon Kayamon July 2014 Emulators
  • New from Paul Farrow, the ZXC4This is exciting stuff!!!! Sorry if ive stepped on your toes Paul, wanted people to hear about it!!! [QUOTE]Hi I?m happy to announce the release o…

    ... ROM without the need to shift the character set bitmaps down ...
    Macc Macc July 2014 Hardware
  • Help put this back to 16kSo this issue 2 arrived today and ive opened it up just to nosey and confirm that infact it is an issue 2. Now from the help offered in an earlier po…

    ... ram oki's and some logic chips but I dont know ...
    zedexspectrum zedexspectrum August 2014 Hardware
  • Machine Code in 30 minutes - car gameWotcha folks, 30 years on and I'm still struggling with Machine Code. I'm going through the 30-minute tutorial on the Chuntey blog and it's all made…

    ... I understand INC L to shift the car character to the ...
    Tobo Tobo August 2014 Development
  • New version emulator ZEsarUX-1.2Hi I have uploaded a new version of my ZX80/81/Spectrum emulator at [url]http://sourceforge.net/projects/zesarux/[/url] Changes are: Added emulat…

    ... ;2, Cursor Joystick, Cursor & Shift, Fuller, Zebra, Mikro-Gen. Autofire ...
    chernandezba chernandezba August 2014 Emulators
  • What is this disk interface (and how to use it)?Anybody seen this floppy disk drive interface before? It uses an MB8877A and the rest is 74XX-logic, no GALs/PALs. And an EPROM. [IMG]http://i1373.p…

    ... and the rest is 74XX-logic, no GALs/PALs. And an ...
    georgedb georgedb August 2014 Hardware
  • 1st interface in 30 years (update)Hi all, Just a wee update to my "1st ZX interface in 30 years" project. Main IC's: 82C55 three 8-bit port I/O (configured for 12 dig in, 12 dig out…

    ... high = VALTOSEND >> 8; // Shift the integer right 8 bits ...
    IanJ IanJ August 2014 Hardware
  • ZX BlockEditor questionAs we are talking in another thread about the development of Claus Jahn utilities, I would have a request to Claus about Zx Blockeditor Some time ag…

    ... to block start
    - with SHIFT point to block end = select ...
    Ralf Ralf September 2014 Emulators
  • Archive of Info Magazines from Beta Disk Users Club BDUC is onlineHere we go ... I?ve put the Archive of Info Magazines from Beta Disk Users Club (BDUC) online at: [url]https://mediencenter.t-online.de/auth/guest/…

    ... Interface Hardware Vers 5.xx Logic Control PCB.jpg"

    Luzie Luzie September 2014 Sinclair Miscellaneous
  • ZX-Paintbrush 2.5 publishedDear readers, as there were many updates since the last version, I want to bring this to public, so that I hopefully can return back to ZX-Assembler…

    Dear readers,

    as there were many updates since the last version, I want to bring this to public, so that I hopefully can return back to ZX-Assembler.
    Here the things I have changed in the new version 2.5:

    1. [COLOR="Red"] ...
    clausjahn clausjahn September 2014 Emulators
  • 'Ocean Draw' instructionsHere are the instructions for the screen and sprite editor used in-house at Ocean Software, possibly typed up by Joffa Smifff (as the 2 of the sprite…

    ... TO SCREEN

    4 -SHIFT AND PLACE IE A SELECTED ... 3. (FOR ANOTHER FORMAT
    SHIFT THEN CHANGE FORMAT OF
    DIFFERENT FORMAT PRESS CAPS SHIFT
    TOGETHER WITH THE FORMAT ...
    Mark R. Jones Mark R. Jones September 2014 Sinclair Miscellaneous
  • On this day, I got my SpeccyOMG, 30 years ago, 3rd October 1984... 48k rubber thingie show up in my room... after school (afternoon 'shift') that was a night... :) My choice …

    ... my room... after school (afternoon 'shift') that was a night... :)
    Alex_Lux Alex_Lux October 2014 Sinclair Miscellaneous
  • ZX-Modules voting eventDear readers, before I went to a 10-hours shift on my real workplace, I want to announce that I've started a voting event for ZX-Modules, where you …

    ... went to a 10-hours shift on my real workplace, I ...
    clausjahn clausjahn October 2014 Emulators
  • How to close an HTML Input elementAs I've been off ill for a couple of days, I thought that I'd do some work to catch up not I'm feeling a bit better. Some of the stuff I've been work…

    As I've been off ill for a couple of days, I thought that I'd do some work to catch up not I'm feeling a bit better. Some of the stuff I've been working with hasn't, to put it politely, been the cleanest code base I've seen. But this:
    [code]
    Shaun.Bebbington Shaun.Bebbington October 2014 Chit chat
  • Dumping Microdrives (to a PC, not to a skip)Morning/Afternoon/Evening chaps, What do people use for getting their data off a microdrive quickly? I know of at least one project which does it ra…

    ... microdrive.

    Set Saleae Logic to sample at at least ... microdrive cartridge.

    Start logic sampling.

    Type in ...
    Spirantho Spirantho October 2014 Sinclair Miscellaneous
  • New chiptune album (ZX81, Spectrum, Sam Coupe, Atari ST, Amiga)Not entirely Sinclair - granted - but maybe somebody might be interested. ________________________________ YERZMYEY - CHIPTUNES (C) 2014 DOWNLOAD M…

    ... -Blazar_shift.mp3]05. Yerzmyey - Blazar Shift (ZX Spectrum / Atari 520ST)[/url ...
    Yerzmyey Yerzmyey October 2014 Sinclair Miscellaneous
  • Issue 3 ULA ProblemsI've been given an Issue 3 48k to fix. It was producing no video and no picture on the TV. The coil was buzzing so it was getting power and all the v…

    ... as far as pressing Sym-Shift+N for the comma and ...
    retrogamemart retrogamemart November 2014 Hardware
  • Project: Stealth Fighter keysThere is a document called ProjectStealthFighter_keys.txt that list the keys used in this game, but it has some missing keys and other keys are wrong…

    ... time On-Off
    Caps Shift - Pause

    Joystick / QAOP ... Gear Up-Down
    Symbol Shift - Eject

    V - Change ...
    Zup Zup November 2014 Infoseek database
  • New Floppy Interface for the +2a/b (black case)Hello everybody! For a long time I wondered about the posibility of adding a FDD to the +2a/b (black). I knew it was possible; All the logic is alre…

    ... it was possible; All the logic is already in the +2 ... a 74s188 bprom + about 8 logic chips. My approach was to ... uses quite less chips (4 logic chips + SED9420 + 765fdc, and you ...
    BCH BCH November 2014 Hardware
  • ZXadlib CPLD-freeHi folks. Repost from [URL="http://forum.tslabs.info/viewtopic.php?f=6&t=431"]here[/URL] OPL2 chipset for speccy. 6Fh index, 7Fh data. This is firs…

    ... to use CPLD, when one logic chip can do the job ...
    MC68k MC68k November 2014 Hardware
<1…16171819202122…34>

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