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<1234567…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 …

    ... Spectrum?s own keyboard, ( KEY-SCAN at #028E having been patched for this ... assignment:
    Bit 0-5 Key number ( 0-38 ) or 39 ... , for ?no key?
    Bit 6 Symbol Shift ... ambiguity, while holding the ?Alt? key.
    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 …

    ... connected. The patched KEY-SCAN routine at address #028E of the interface?s ... interprets the value as a key code with following bit assignment ... :
    Bit 0-5 Key number ( 0-38 ) or 39 ... for ?no key?
    Bit 6 Symbol Shift ...
    Dan Antohi Dan Antohi April 2014 Hardware
  • Redefine keys routineHow would I go about making a memory efficient redefine keys routine? I only want to define up, down, left and right and reserve key 'H' for pause.…

    ... ' for pause.

    The key scan routine in the game goes ...
    daveysludge daveysludge August 2013 Development
  • A Neat Redefine Keys RoutinePreviously, I’ve only shared this routine with a couple of people via PM, but I’ve now decided to make it public. I optimized it for size, so it uses…

    ... br /> call $28e ;use KEY-SCAN to fetch key code and load it ... to (dummy_key+BC), so store key code there

    ... call $31e ;now decode key code for printing
    ex ... subroutine, move on to scan the next key

    enter_key ...
    Ast_A_Moore Ast_A_Moore October 2017 Development
  • How to speed up TZX loading (emu development)With many newer emulators there are options to do faster loading schemes, even for turbo-loader or protected loader blocks in TZX files. For example,…

    ... .

    If a tight key-scan loop runs in a game ... that too would invoke a scan. When found not to be ... program was forcing a loader scan once every frame on a ...
    Woody Woody August 2006 Emulators
  • 48K games that don't work on a +2Not sure if there is already a thread about this but recently I've noticed some old 48K games will not run on my +2 - even in 48K mode. Examples are…

    ... they modified the IM1 routine, key-scan and INKEY$ routines (not an ...
    Jimmy Jimmy June 2008 Games
  • 2 (or more) players over the netAre there any emulators that allow 2 (or more) players over the net? I guess, 1 machine running the emulator but serving the screen up to 2 or more …

    ... second it misses a crucial key scan that moves your cursor two ...
    gasman gasman September 2008 Emulators
  • Keyboard routinesI'll ask here first - since this must be a long-ago solved problem, and hopefully I can avoid re-inventing the wheel... I need a keyboard routine th…

    ... till you've seen a "key up event". I already had ... (I was just using the key scan and translate-it-to-ASCII ...
    Winston Winston January 2009 Development
  • Contiki, non-existant web servers and zx spectrumafter visiting this site today, (a web server running on a c64 - [url]http://c64web.com/[/url] ) I realized contiki already available on most 6502 ba…

    ... start selling cheap USB to key scan interface boards I'll just ...
    guesser guesser June 2012 Sinclair Miscellaneous
  • Contiki, non-existant web servers and zx spectrumafter visiting this site today, (a web server running on a c64 - [url]http://c64web.com/[/url] ) I realized contiki already available on most 6502 ba…

    [QUOTE=guesser;634129]Well once you start selling cheap USB to key scan interface boards I'll just have to eat my words won't I :)[/QUOTE]

    You'll have to do more than that. You'll have to write the drivers for a heap of USB devices! ;)
    chev chev June 2012 Sinclair Miscellaneous
  • iXpectrum on iPad using Bluetooth keyboard?Does anybody know if it's possible to get the fantastic iXpectrum to use a Bluetooth keyboard connected to an iPad? Some games are easy to play but s…

    ... , it receives just a pressed key scan code. And this does not ...
    Artem Artem June 2012 Emulators
  • iXpectrum on iPad using Bluetooth keyboard?Does anybody know if it's possible to get the fantastic iXpectrum to use a Bluetooth keyboard connected to an iPad? Some games are easy to play but s…

    ... , it receives just a pressed key scan code. And this does not ...
    chev chev June 2012 Emulators
  • MOVE_M Object Movement Manager for BASICAs moving things around on the screen is usually the slowest part of a game written in BASIC, I've been pottering around with this routine to handle …

    ... trawling through the asm. The key scan table and exception return to ...
    Morkin Morkin September 2013 Sinclair Basic
  • LZ4 decoderI encountered the [URL="http://code.google.com/p/lz4/"]LZ4 compressor[/URL] a few weeks ago. Reading the [URL="http://fastcompression.blogspot.co.uk…

    ... screen goes black. Press a key and repeat
    ;; twice :-) LZ4 ...
    .wait_loop:
    call 0x28e ; KEY-SCAN returns 0xFFFF in DE if ...
    stephenw32768 stephenw32768 October 2013 Development
  • Getting aquainted with the IF1bisToday, fifteen days after dispatch, the IF1bis arrived at my door. In perfect order. No customs, no TVA and no handling fee involved. The arrival of …

    ... />
    The existing key scan routine that runs every Interrupt ... /> ;-----------------------------
    addr1 CALL #02BF ;key scan
    CALL 8020 ;test BREAK ...
    roko roko December 2013 Hardware
  • [Updated] RetroVM 1.0.4 with Recreated ZX Spectrum support.A new version available the change log: - Recreated ZX Spectrum "game mode" keyboard support. - Fix a bug with multiples machines running in para…

    ... an interesting outcome of a key read routine that most ... during the redefine key routine. The routine uses a key scan which figures ... out which key was pressed and ... to work fine and the key read correctly. Running on ...
    TomD TomD November 2015 Emulators
  • [Updated] RetroVM 1.0.4 with Recreated ZX Spectrum support.A new version available the change log: - Recreated ZX Spectrum "game mode" keyboard support. - Fix a bug with multiples machines running in para…

    ... an interesting outcome of a key read routine that most emulators ... during the redefine key routine. The routine uses a key scan which figures ... out which key was pressed and ... asm code of the keyboard scan rutine. I'm sure that ...
    jcgamestoy jcgamestoy November 2015 Emulators
  • CAPS-SHIFT KeyCodeIs there a standard Keycode for CAPS-SHIFT Key ? Looking at the ROM documentation in the Main key table KEYTABLE_A, there is no Entry for CAPS_SHI…

    ... 39 (decimal) in my redefine key routine and it works fine ... you keyCode 39, for internal key scan control , if using your own ...
    RMartins RMartins October 2016 Development
  • CAPS-SHIFT KeyCodeIs there a standard Keycode for CAPS-SHIFT Key ? Looking at the ROM documentation in the Main key table KEYTABLE_A, there is no Entry for CAPS_SHI…

    ... the E register by the KEY-SCAN subroutine at $28e. It’ ... printable character. Any key code returned by KEY-SCAN is not a printable ... . Poll keyboard via KEY-SCAN
    2. Save key code in memory ( ... Print the [i]decoded[/i] key character on screen directly unless ...
    Ast_A_Moore Ast_A_Moore October 2016 Development
  • A Neat Redefine Keys RoutinePreviously, I’ve only shared this routine with a couple of people via PM, but I’ve now decided to make it public. I optimized it for size, so it uses…

    ... /> call $28e ;use KEY-SCAN to fetch key code and load it ...
    call $31e ;now decode key code for printing
    ex ... subroutine, move on to scan the next key

    ... [/code]

    Thus, the key-polling portion of the code ...
    Ast_A_Moore Ast_A_Moore October 2017 Development
  • Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…

    ... , but it does not scan all the input lines if ... keys, I wanted to scan them all). I can ... "are you pressing a key this frame" easy to ... mapped in reverse so rightmost key is lowest number
    ... ://skoolkid.github.io/rom/asm/028E.html

    EDIT: ...
    Paradigm Shifter Paradigm Shifter September 2022 Development
  • They key "O" doesn?t work !!!Who can help me? I?m using the emulator 1.1 on my Jornada 680. It works correctly but there is one problem. The key "O" does not work.

    Who can help me? I?m using the emulator 1.1 on my Jornada 680. It works correctly but there is one problem. The key "O" does not work.
    J?rgen J?rgen October 2001 Emulators
  • PimaniaHi, I have been trying to play PIMANIA but have run up against a problem. In order to start the game the first question says "A KEY TURNS THE LOCK".…

    ... the first question says "A KEY TURNS THE LOCK". If I ... drawer. I guess I should scan it and send it to ...
    pete pete December 2001 Games
  • RGB output scan rate?Hi, I'm Bruno Florindo. I'm portuguese and I live in USA. I'm trying to find a RGB cable for the ZX Spectrum +2. I can't find the monitor that I had …

    ... need to find out the scan rate of your computer.
    If your computer has a scan rate of 31.5khz, then ... hooking up to, and what scan rate both your devices are ... I don't know the scan rate of the ZX Spectrum ...
    Bruno Florindo Bruno Florindo August 2001 Sinclair Miscellaneous
  • Need scan of batman tape from Crash 60 :-) I have managed to dig out all the cover cassettes from the loft but have Batman missing from issue 60 :( Can anybody scan the cassett…

    ... 60 :(

    Can anybody scan the cassette as I am ... another 40 Crashes left to scan, working through 58 as I ...
    Mort! Mort! July 2002 MIA/STP/SDP
  • Road Race scan needed I have been through all my speccy games boxes (9 in total!) and can`t find my Road Race Cassette which came free with your sinclair. If somebody co…

    ... your sinclair. If somebody could scan the actual tape this could ...
    Mort! Mort! November 2002 MIA/STP/SDP
  • I bow to you, Mort!!!!!!! (Mag scan delight)Yesterday I just received my three DVDs of Crash, Zzap!64 (don't flame me, please!) and Amtix magazine scans. I bow to you Mort! Having to scan all t…

    ... to you Mort! Having to scan all them issues (the last ...
    Pag Pag May 2004 Sinclair Miscellaneous
  • KEY SOFTWAREI`ve just come across the name KEY SOFTWARE, who were in Aberdeen. They did some Beta Basic programs for schools. Has anybody got any? or seen any? …

    I`ve just come across the name KEY SOFTWARE,
    who were in Aberdeen. They did some Beta Basic programs for schools.

    Has anybody got any? or seen any?

    thanks in advance,

    Steve (spt)
    Steve(spt) Steve(spt) September 2004 Wanted
  • Spectrum 16k Rubber KeyDoes anyone have a 16k rubber key spectrum they would be willing to part with? Just missed one on ebay (forgot about it) so thought I would check he…

    ... anyone have a 16k rubber key spectrum they would be willing ...
    andrew1810 andrew1810 October 2004 Wanted
<1234567…34>

Latest Posts

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  • Fixed Speccy Software. And which games remained unfixed?
    harriusherbartio on 11:01AM
  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
  • Another Birthday! The Game Boy Is 35!
    mel the bell on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21
  • +3 Disk drive motor
    AndyC on April 21

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scan 3.7K 4.6K
028e 16 24

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  • Wich key of a rubber Key Spectrum get used least??I'm wondering of all the Keys on a rubber key ZX Spectrum on average wich one do you reccon gets used the least??<br /> <br /> I have played with the…
  • They key "O" doesn?t work !!!Who can help me? I?m using the emulator 1.1 on my Jornada 680. It works correctly but there is one problem. The key "O" does not work.
  • RGB output scan rate?Hi, I'm Bruno Florindo. I'm portuguese and I live in USA. I'm trying to find a RGB cable for the ZX Spectrum +2. I can't find the monitor that I had …
  • Original rubber key 48k'sThis question is to some point academic;<br /> <br /> But i seem to remeber the original 48k Rubber Keys Speccy came in versions 1,2 &amp; 3!<br /> <…
  • Need scan of batman tape from Crash 60 :-)I have managed to dig out all the cover cassettes from the loft but have Batman missing from issue 60 :(<br /> <br /> Can anybody scan the …
  • Road Race scan neededI have been through all my speccy games boxes (9 in total!) and can`t find my Road Race Cassette which came free with your sinclair. If somebody coul…
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  • Your Sinclair Scan SetIssue 36 (December 1988) has pages 63-70 missing, but I understand these were actually Tipshop pages.<br /> <br /> I have the Tipshop folder, but don…
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  • I bow to you, Mort!!!!!!! (Mag scan delight)Yesterday I just received my three DVDs of Crash, Zzap!64 (don't flame me, please!) and Amtix magazine scans. I bow to you Mort! Having to scan all t…

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