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  • SpeedloadersSince I read Lee Tonks' post about the speedloaded version of MM3 he did, I've been playing around with various speedload routines I found on TTFn & …

    ... relocated it to the printer buffer. :-D

    I did ...
    obo obo April 2007 Sinclair Miscellaneous
  • Reason for strange display layout?I have always wondered if there is any technical reason behind the strange layout of the display file or why did Sinclair choose to do it this way?

    ... . When I build the frame buffer for my Z80 project's ...
    Winston Winston May 2007 Development
  • hiding file names while loadinghello, i just found my old home grown game Bubble Bobble The Adventure in original form, so i'm trying to convert it from TR-DOS to TZX for submitti…

    ... you can use the printer buffer to store some code, then ... the screen, save the printer buffer too. Since a header less ...
    DEATH DEATH May 2007 Sinclair Basic
  • Running code from the display memory?Is it possible to run machine code from the memory area used by the display file? If you were really out of memory and some part of screen is not u…

    Is the printer buffer avaiable too?
    23296 - 23551
    dekh dekh May 2007 Development
  • PZX file format draft[QUOTE=Andrew Barker;186084]To this date, there is no rival format for TZX, despite people saying they can do better. Well the challenge is on, prov…

    ... of data past your file buffer to my loader. If that ...
    Patrik Rak Patrik Rak May 2007 Emulators
  • PZX file format draft[QUOTE=Andrew Barker;186084]To this date, there is no rival format for TZX, despite people saying they can do better. Well the challenge is on, prov…

    ... ... :)[/QUOTE]

    With a buffer overflow (which is the normal ...
    Philip Kendall Philip Kendall May 2007 Emulators
  • PZX file format draft[QUOTE=Andrew Barker;186084]To this date, there is no rival format for TZX, despite people saying they can do better. Well the challenge is on, prov…

    ... of data past your file buffer to my loader.[/QUOTE]
    Laser Laser May 2007 Emulators
  • Question about digitized sound and videoI searched the forums and couldn't find the answer, so here it goes. Regarding digitized sound: I remember reading an article long ago about a vid…

    ... or a 256-byte sound buffer, and stopping periodically to dump ... something from that buffer to the AY) and there ...
    gasman gasman May 2007 Development
  • UFC 71 - Rampage Jackson vs Chuck LiddellSPOILER ALERT!! S P O I L E R S P A C E . . . . . . . . . . . . Any UFC fans on World of Spectrum? I see Rampage Jackson made pretty short work of…

    ... introduced in the ring by Buffer. Thought I was in for ...
    VincentAC VincentAC May 2007 Chit chat
  • How does interrupts work?I am a little confused regarding the interrupts on the Spectrum. If I have some hundred bytes of machine code started with, say, [B]RANDOMIZE USR 300…

    ... draw graphics into a second buffer and then copy the ... specs have that second display buffer available so that you can ... algorithm only updates the back buffer where sprites are moving.
    buffer". However tearing becomes much more ...
    Alcoholics Anonymous Alcoholics Anonymous May 2007 Development
  • The new GP2Xpectrum releases threadYeah, I know the thread title isn't exactly too original, but I've decided that just one post to hold all updates makes more sense than a lot of smal…

    ... function instead of a screen buffer.
    - Fixed a bug in ...
    Metalbrain Metalbrain June 2007 Emulators
  • Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…

    ... fast as possible. The back buffer was cleared with the stack ...
    wokani wokani June 2007 Games
  • Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…

    ... I'm assuming that the buffer uses only two thirds of ... ... no system vars, no printer buffer...).

    As you can ...
    Zup Zup June 2007 Games
  • What's the word . . .I'm struggling to find the english words for these things. Thinking maybe this would be the ideal place to ask: 1) something that you apply to a sol…

    And what's the difference between a buffer and a cache?

    My english dictionary says "mellomlager" for both, meaning place inbetween for putting things.
    wilsonsamm wilsonsamm June 2007 Chit chat
  • What's the word . . .I'm struggling to find the english words for these things. Thinking maybe this would be the ideal place to ask: 1) something that you apply to a sol…

    ... 's the difference between a buffer and a cache?

    Skarpo Skarpo June 2007 Chit chat
  • What's the word . . .I'm struggling to find the english words for these things. Thinking maybe this would be the ideal place to ask: 1) something that you apply to a sol…

    ... 's the difference between a buffer and a cache?[/QUOTE]
    buffer, it is read back once ... rates; for example, a keyboard buffer will queue up keypresses and ...
    gasman gasman June 2007 Chit chat
  • New Opus Discovery tool addedFinally, after some years wait, a new [B]Opus Discovery[/B] tool, [URL="ftp://ftp.worldofspectrum.org/pub/sinclair/tools/pc/OpusRead_v200.zip"][U]Opu…

    ... ]
    Sector reads use the buffer you supply without any intermediate ... best if you fill the buffer (perhaps with 0x00) before attempt ... has been read into the buffer, but the CRC following the ...
    obo obo June 2007 Development
  • Best beginners guideHi folks One of the girls in work is looking towards learning the very basics(1) of programming. She has never written any type of program or even a…

    ... thing. Nothing teaches you why buffer overflows are bad than seeing ...
    Winston Winston June 2007 Sinclair Basic
  • Making your own joystick interfaceJust spied the diagram for the kempston joystick interface in the docs section. For someone who has only made up cables, what is involved in constru…

    ... want a proper addressable frame buffer with microprocessor compatible timings - LCD ...
    Winston Winston June 2007 Hardware
  • Possible great ideaHello there everybody, I have been toying with the idea of doing a project here with the help of the gurus on the forum. The idea is to start the de…

    ... screen or into a memory buffer (for scrolling).

    [quote ...
    Alcoholics Anonymous Alcoholics Anonymous June 2007 Development
  • Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…

    ... for printed bitmap (screen or buffer)
    // f = uchar *(*f)(uchar ... write. Likewise in our memory buffer we can write one pixel ... row. This keeps the memory buffer contiguous. How do we handle ... be using to modify the buffer address when moving down one ...
    Alcoholics Anonymous Alcoholics Anonymous June 2007 Development
  • Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…

    ... in mind uses memset() for buffer init, memop() for pixel scroll ... at a time into the buffer and probably memcpy() because I ...
    Alcoholics Anonymous Alcoholics Anonymous June 2007 Development
  • ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…

    ... now have an 8-byte buffer specified by memory address as ...
    Alcoholics Anonymous Alcoholics Anonymous July 2007 Development
  • A thought about Top GunI've been playing a bit of Top Gun earlier, and I'm not convinced it should be classed as a vector 3D game, as I'm seeing really nothing that would m…

    ... -rendered frames stored in a buffer, that is played back in ...
    CKay CKay July 2007 Games
  • Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…

    ... /> .dump
    push de
    ldi x 32
    inc hl ... decerements to b by djnz). LDI happens to set the parity ... repeat the loop following the LDI. You have some intervening code ...
    Alcoholics Anonymous Alcoholics Anonymous July 2007 Development
  • How do I clear only a specific area of a screen (quickly) in machine code ?I'm looking for a machine code routine which will clear the first 20 rows of the Spectrum's display (or any number of rows or columns) . I have found…

    ... use a list of LDI instructions instead. LDI copies a byte in ...
    bobs bobs July 2007 Development
  • Eprom blowerdoes anyone know a site with plans for an eprom programmer project that'll blow 27C256s. I attempted to build one called Kisseprom, but the software …

    ... to slip into the transporter buffer and stay in stasis for ...
    gtsamour gtsamour July 2007 Hardware
  • Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…

    ... everry two frames. Split the buffer pixel shift in half, doing ... to do away with the buffer altogether and scroll the message ... the 260+ byte buffer required by the scroll buffer. The scroll operates ... ; getting rid of the scroll buffer will help to reduce the ...
    Alcoholics Anonymous Alcoholics Anonymous July 2007 Development
  • Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…

    ... that the large 240+ byte buffer is no longer required. The ...
    Alcoholics Anonymous Alcoholics Anonymous July 2007 Development
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Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
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    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
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