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  • Ben Heck's Zee Ecks Spectrum 2.0Don't think this has been mentioned yet, BICBW... https://www.youtube.com/watch?v=Kyvn1Le7aiU

    ... tracing connections will set you back around ₹250 or £10–£15 ... the flip-flop and bus buffer chips worked in the device ...
    zub zub September 2015 Hardware
  • What is the "SPECTRUM" keyword on a 128K?The 128K replaced UDG characters T and U with new commands; PLAY and SPECTRUM (or possibly the other way around.) The manual ([url="http://www.wor…

    ... to clear the ZX printer buffer and reset the associated system ... 's not possible to switch back to 128k mode with the ...
    Battle Bunny Battle Bunny October 2015 Sinclair Basic
  • What is the "SPECTRUM" keyword on a 128K?The 128K replaced UDG characters T and U with new commands; PLAY and SPECTRUM (or possibly the other way around.) The manual ([url="http://www.wor…

    ... and +2A users to go back to +3/+2A BASIC:
    buffer), that switches back ROM 1. There is ...
    zPasi zPasi October 2015 Sinclair Basic
  • What is the "SPECTRUM" keyword on a 128K?The 128K replaced UDG characters T and U with new commands; PLAY and SPECTRUM (or possibly the other way around.) The manual ([url="http://www.wor…

    ... is no way to get back to the 128K BASIC editor ... 23325 works, and gets you back to the 128K editor!
    buffer, so you'll better not ...
    zPasi zPasi October 2015 Sinclair Basic
  • What is the "SPECTRUM" keyword on a 128K?The 128K replaced UDG characters T and U with new commands; PLAY and SPECTRUM (or possibly the other way around.) The manual ([url="http://www.wor…

    ... to clear the the print buffer is indeed a bug, fixed ... ROM of the “128Ke” brings back the two UDGs, although SPECTRUM ...
    zub zub October 2015 Sinclair Basic
  • Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …

    ... on chip 74LS260 IC12 (1st buffer chip) on the motherboard ; solder ... should be fitted in "piggy back" style with the capacitor bent ...
    harriusherbartio harriusherbartio October 2015 Hardware
  • Mackarel - one exe to turn .ihx + .scr to a .tapSorry if this feels like spamming so soon after mkloader, but I'm honestly surprised how fast I managed to put this together. Introducking Mackare…

    ... option to move the decompress buffer back in memory a bit, which ...
    Sol_HSA Sol_HSA January 2016 Announcements
  • 128K programmingDoes anyone know any good resources on assembly programming for the 128? All I'm after is an "idiot's-getting-started-guide" on how to utilise the…

    ... memory:

    1. Back screen buffer, you can write directly to ...
    RobeeeJay RobeeeJay February 2016 Development
  • 128K programmingDoes anyone know any good resources on assembly programming for the 128? All I'm after is an "idiot's-getting-started-guide" on how to utilise the…

    ... and 7 and read them back whenever I needed them. USR0 ... (video memory) as a temporary buffer. Data are transferred in chunks ... />
    LD A,0 ; goes back to the bank set by ... />
    LD A,0 ; goes back to the bank set by ...
    Alessandro Grussu Alessandro Grussu February 2016 Development
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... 5 (video memory) as a buffer.
    ; PRELOAD sets bytes at ... />
    LD A,0 ; goes back to the bank set by ... />
    LD A,0 ; goes back to the bank set by ...
    Alessandro Grussu Alessandro Grussu April 2016 Brand new software
  • Let's copy buffers!Figured I'd do some double buffered graphics, so I can render for several frames before displaying stuff. Yes, I mean on a 48k speccy, so no 128k spe…

    ... willing to make the source buffer non-contiguous you can ... HL" instructions. Drawing into the buffer amounts to modifying the "nn ... faster overall. Especially if the buffer is to be cleared. ... the particular "PUSH HL" instructions back to "PUSH DE".
    < ...
    gp2000 gp2000 April 2016 Development
  • Is it possible to have a Single Drive on Betadisk as Drive Letter B (other than A)Hello, I?ve problems with getting two drives to work on my Betadisk v4 Interface: I?ve tried a second drive as slave drive but can?t get it to work…

    ... , through a 74LS08 non-inverting buffer.
    Those two parts would ... 5 outputs of the LS08 buffer (just in an 'idle' situation ... /> after reading it should go back to 1 (+5V). When reading ... Output 12 don´t go back to +5V but only to ...
    Luzie Luzie May 2016 Hardware
  • BrexitThere's nothing like a nice healty Brexit to start the day!

    ... a short recession on the back of Brexit. We don't ... extra to build up a buffer, for example. In my case ...
    jonathan jonathan June 2016 Chit chat
  • Where does the BASIC program sit 48K Spectrum memory?Hi there First post so be gentle, I've had a spectrum since the 80's and have recently started programming it for fun again. I wrote the followin…

    ... sprite in a buffer and then copies the buffer to screen, then ... buffer and copies it to the screen, etc, until it's back ... at the first buffer, and it goes on ...
    Sol_HSA Sol_HSA September 2016 Sinclair Basic
  • Time Gate graphics patchI've rediscovered Time Gate and one thing I don't like about the game is that it's hard to remember what's what in the status indicators. The manual …

    ... my hack will copy it back to where it's supposed ... I can use as a buffer to copy it down to ...
    textvoyage textvoyage October 2016 Games
  • MuCho multiple choise adventure engine, release 2 - little to no programming neededRelease 2 of the MuCho multiple choise adventure (CYOA, choose your own adventure, gamebook) game engine. http://iki.fi/sol/zip/mucho_02.zip Fo…

    ... of data before the decompresison buffer for data to copy, and ... freaky:
    [code]
    the Back to be a couple of ...
    Sol_HSA Sol_HSA October 2016 Development
  • Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …

    ... on chip 74LS260 IC12 (1st buffer chip) on the motherboard ; solder ... should be fitted in "piggy back" style with the capacitor bent ...
    harriusherbartio harriusherbartio October 2016 Hardware
  • Rendering techniques in emulatorsI've been giving thought to the possibility of speeding up the rendering in Zero considering I've been putting it off long enough. My approach is c…

    ... inserting an intermediary buffer, you can get back to work quicker and ...
    AndyC AndyC October 2016 Emulators
  • Speccy Retro TypologyHow many types of Speccy Retro are there?

    ... had the original 48k machine back in the early 80's ... attach what and how to buffer it to protect the circuitry ...
    mik3d3nch mik3d3nch November 2016 Sinclair Miscellaneous
  • 1987-2017Here we are, with our tradional thread about games released thirty years ago, where we can contemplate how bad they have aged, how bad they [i]alread…

    ... left hand hurt playing this back in the day on a ... the split powerup. However the buffer for the centre of the ... sh*t without nothin' to back em' up. Thing that annoys ... -up it stays there, basically back to that the ball rebounds ...
    dm_boozefreek dm_boozefreek April 2017 Games
  • ZXSCLZF - Yet another Screen CompressorQuick disclaimer before I continue, this compressor does not shrink screens as small as some of the others posted here, in particular the very good z…

    ... a,c ; 4t - bring back control byte
    and % ... /> jr _ulzfa020 ; 12t - back to the top
    ;;
    ;; move de back to attr space
    xor ... ;
    unsigned char *buffer,*buffer_ss,*buffer_sc,*buffer_sb,*buffer_ns,*buffer_ds ...
    TomD TomD April 2017 Development
  • ZX Spectrum Next Kickstarter Launchedhttps://www.kickstarter.com/projects/1835143999/zx-spectrum-next

    ... capacity) AND on-chip line buffer AND yet some extra logic ... the pi0 hanging off the back, then yeah. That could do ...
    Lethargeek Lethargeek May 2017 Sinclair Miscellaneous
  • endless runner project..So I'm thinking of writing a small tutorial series on writing games for the speccy in C, and figured that an endless runner would be an easy example …

    ... it was a big step back from Basic on Spectrum ;) You ... .

    And you have buffer overflows, stack overflows, memory leaks ...
    Ralf Ralf May 2017 Development
  • endless runner project..So I'm thinking of writing a small tutorial series on writing games for the speccy in C, and figured that an endless runner would be an easy example …

    ... bit coding dictate falling back to all sorts of ... the code. No going back and re-calculating jumps. ... was a big step back from Basic on ... Basic... And you have buffer overflows, stack overflows, memory ... be written. Things like buffer overflows, memory leaks, ...
    Alcoholics Anonymous Alcoholics Anonymous May 2017 Development
  • endless runner project..So I'm thinking of writing a small tutorial series on writing games for the speccy in C, and figured that an endless runner would be an easy example …

    ... />
    [quote]
    To get back to the topic
    the ... terminal driver holds is a buffer containing a complete line after ... that the terminal's internal buffer is cleared for the next ... input and then sscanf that buffer before throwing it away. Another ...
    Alcoholics Anonymous Alcoholics Anonymous May 2017 Development
  • off screen bufferwhen using an offscreen buffer is the memory copied to the screen in a way that makes it easier to draw sprites to the buffer? E.g. Lets say you…

    ... HALT
    LDI background from buffer to screen to delete
    [/code]

    [code]
    ;buffer in this example at 24576 ... corresponding place in buffer
    set 5,h ;buffer is 32 ... /> ld e,a ;DE back to left
    call nextlinedown ...
    R-Tape R-Tape June 2017 Development
  • How to improve my program using oversized numbersI'd like my dice program to print out the number four times bigger than normal if possible. Anyone know how to do this? Or I could write a sub rou…

    ... the address of the printer buffer, and since it’s linear ... a printer buffer.

    I used this trick way back when ...
    Ast_A_Moore Ast_A_Moore July 2017 BASIC
  • Reading Disks via ASMI'm hoping to port my Amstrad game to the spectrum (See the link in my sig for info) I will be targeting the 128 and +3 - the game will not work on …

    ... the level starts, calling it back in only when the next ... I can bank swap it back when I need to load ... only use a hardware screen buffer using bank 7, and only ...
    keith56 keith56 July 2017 Development
  • z88dk terminalsto set up a terminal a bunch of numbers are needed: m4_zx_01_output_fzx(_window_1, 0x2330, 0, 0, 1, 14, 1, 19, 0, _ff_ao_Prefect, 14, 0, 14, 8, 1…

    ... the scrolling.

    Your buffer of pixel lines would be ... *C" pixel lines to your buffer starting at the oldest to ... you have already in the buffer when this out of band ... to snap the window contents back to the unscrolled state. You ...
    Alcoholics Anonymous Alcoholics Anonymous July 2017 Development
  • 1k Chess (was the 924 bytes thing!)Hi, I've decided to do a major rewrite of large parts of the code for the isometric Chess thing that I've been messing with. It got to the point, …

    ... , it is drawn from the back.

    There is an ... , I back up the 32 bits into a 32 byte buffer and ... extra features.

    The buffer is restored to the line ...
    Arkannoyed Arkannoyed September 2017 Development
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Latest Posts

  • Minor British Sports that did become games on the ZX Spectrum
    dmsmith on 11:22PM
  • I bought an accoustic guitar. How do you play it?
    Maroc's Other Projection on 9:55PM
  • Goodbye Z80
    moggy on 9:07PM
  • Happy 40th Birthday to the Amstrad CPC464!
    AndyC on 6:29PM
  • Another Birthday! The Game Boy Is 35!
    dm_boozefreek on 6:17PM
  • I am currently watching.....
    Antiriad2097 on 5:05PM
  • European Software Titles with an English version
    harriusherbartio on 12:06PM
  • How Do You Categorize Your Speccy Software and Games?
    harriusherbartio on 11:21AM
  • Fixed Speccy Software. And which games remained unfixed?
    harriusherbartio on 11:01AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21

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