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Search Again :: Adv Search 1000 results in 0.022s
<1…17181920212223…34>
  • Tile engine and slight colour flickerOver the past few nights I've been working on a simple tile game engine for a rock fold game I'm making. While all is going surprising well I've not…

    ... line of colours in the buffer
    ld (temp2), hl
    buffer
    pop de

    back

    jp pe,display_buffer_loop ...
    richdotward richdotward June 2014 Development
  • FUSE serial communication sample anyone?Hi, in [URL="http://manpages.ubuntu.com/manpages/precise/man1/fuse.1.html"]FUSE man pages[/URL] one finds switches for serial comms. By using --inte…

    ... /> di

    ;; buffer to hl
    ld iy ... /> push hl ; store original buffer

    ;; initial ... (byte *b) {
    /* buffer empty */
    if (rs232_ib_beg==rs232_ib_end ... ++)=b;

    /* back to basic */
    return 0 ...
    tstih tstih June 2014 Development
  • [NEW] Speccy for Android ReleasedHello, All! A while ago, I have released the Android version of [i]Speccy[/i], my ZX Spectrum emulator. It emulates Spectrum 16k, 48k, 128k, +2, +2A…

    ... , and quit, it always defaults back to the 128K model.
    buffer overruns while playing all the ...
    pmsr pmsr June 2014 Emulators
  • FUSE serial communication sample anyone?Hi, in [URL="http://manpages.ubuntu.com/manpages/precise/man1/fuse.1.html"]FUSE man pages[/URL] one finds switches for serial comms. By using --inte…

    ... br /> extern word rs232_buffered_input(byte* buffer) __naked;
    extern result ... result rs232_getb(byte *b) {
    /* buffer empty */
    if (rs232_ib_beg==rs232_ib_end ... count--) rs232_putb(*vmem++);

    /* back to basic */
    return 0 ...
    tstih tstih July 2014 Development
  • 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…

    ... gate enabler of the 74LS125 buffer chip - when the gate is ... the contents of the tape buffer (now connected to the 74LS125 ... blank tape, then loading it back in again.

    It ...
    Spirantho Spirantho July 2014 Hardware
  • The best version of Elite?Various versions of Elite are mentioned in another thread ([URL="http://www.worldofspectrum.org/forums/showthread.php?t=48049"]Elite Dangerous: The o…

    ... Elite uses backbuffer for rendering. Buffer is also used to store ... S and ECM E symbols back to 48k look and fix ...
    tomas tomas August 2014 Games
  • The best version of Elite?Various versions of Elite are mentioned in another thread ([URL="http://www.worldofspectrum.org/forums/showthread.php?t=48049"]Elite Dangerous: The o…

    ... Elite uses backbuffer for rendering. Buffer is also used to store ... S and ECM E symbols back to 48k look and fix ...
    ewgf ewgf August 2014 Games
  • Video fault on issue two ZX boardI've trawled the Internet and drawn a few blanks as to where to look to resolve the fault with my issue two board. I'm hoping a few of you knowledgea…

    ... a simple emitter follower video buffer (like the type used for ... old ULA floating on its back attached to the 74LS00, making ...
    Wiggs Wiggs September 2014 Hardware
  • Buffer to screen - how much?[FONT=Calibri][SIZE=3]I am starting to build a new game and am researching different ways to accomplish what I need to do. My question is, is it poss…

    ... something similar a while back. In the picture the ... the stack PUSHing the buffer to screen behind the ...
    I put the buffer at 49152, then you can ... the corresponding screen & buffer addresses just by toggling ... say!) [/I]your buffer to screen and just ...
    R-Tape R-Tape September 2014 Development
  • Buffer to screen - how much?[FONT=Calibri][SIZE=3]I am starting to build a new game and am researching different ways to accomplish what I need to do. My question is, is it poss…

    ... memory addresses in the buffer to draw all the ... sprites. Now copy the buffer to the screen. And ... and putting them back in the buffer. The buffer is clean again ... quicker than an extra buffer copy. You could make ... as one sprite's back-up may contain part ...
    joefish joefish September 2014 Development
  • Chuckie Ess 2 tap doesnt work[url]http://www.worldofspectrum.org/infoseekid.cgi?id=0000959[/url] It loads, you press a key and it returns to Basic! Anyone any idea why or got a …

    ... the start of the printer buffer - and crashes, because there's ... which takes the normal return back to BASIC.

    As ...
    Battle Bunny Battle Bunny September 2014 Infoseek database
  • Creating a linked list in Z80[FONT=Calibri][SIZE=3]I am using a circular buffer to store tiles to be displayed on the screen. Tiles only appear for a set period of time, so when …

    ... from the start of the buffer working forward. Because I ... ?m using a circular buffer I use this functionality ... the beginning of the buffer and traverses it to ... is start from the buffer pointer (points to the ... beginning of the buffer and loop back round to the ...
    Mr Millside Mr Millside October 2014 Development
  • Creating a linked list in Z80[FONT=Calibri][SIZE=3]I am using a circular buffer to store tiles to be displayed on the screen. Tiles only appear for a set period of time, so when …

    ... the start of the buffer working forward. Because I ... m using a circular buffer I use this functionality ... is start from the buffer pointer (points to ... beginning of the buffer and loop back round to the ... queue" (implemented as circular buffer), so you always remove ...
    Einar Saukas Einar Saukas October 2014 Development
  • BIFROST* ENGINE 1.2 released!Another improved version of the BIFROST* ENGINE is now available! Download it here: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0027405[/u…

    ... buffer idea until I finish the game, then I'll come back ...
    Arda Arda October 2014 Brand new software
  • BIFROST* ENGINE 1.2 released!Another improved version of the BIFROST* ENGINE is now available! Download it here: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0027405[/u…

    [QUOTE=Arda;796910]I guess I'll skip the double buffer idea until I finish the game, then I'll come back to it for polishing.[/QUOTE]

    Feel free to contact me when it's time to reconsider it (publicly or by email) and I will try to help! :)
    Einar Saukas Einar Saukas October 2014 Brand new software
  • Alkatraz Protection System - "How to" and compo?I'm thinking about writing a "how to" regarding the [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0020807"]Alkatraz Protection System[/URL].…

    ... will move through the message buffer and DELETE will remove characters ... you can move through the buffer by 32 characters by pressing ... , or CURSOR UP to go back by 32 chars.
    You ... message that some of the buffer can be inverted and this ...
    jp jp November 2014 Announcements
  • 64x48 monochrome big pixels display ideaHi. I was playing with this idea of having a simple 64x48 bytes buffer, 1 byte per pixel, then a renderer which would take that buffer and render it…

    ... rendering) is to have a buffer twice as wide (or high ... reach the end, you jump back to the start, which already ... for a POP to jump back to the start of the ... of course point back to the top of the buffer when you ...
    joefish joefish December 2014 Development
  • Speccy Vs Amstrad CPC Vs C64I hope no one minds me posting this here as well as in the announcements section. I'll delete it if there is a problem. It's childish fun but can I …

    ... like that speed as the buffer is going to fill up ... in the drive system goes back to the 1540 drive for ...
    Jimmo Jimmo December 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…

    ... just copying the game screen buffer around and watching how fast ... could have all the memory back again.
    - If, (big IF ...
    MatGubbins MatGubbins January 2015 Brand new software
  • Scrolling in BASICI remember a few BASIC typeins for other machines that claimed to be scrolling the screen. Obviously vertically its not too difficult - once you dis…

    ... scenery as a character map, back it up, then restore from ... fill-in data from a buffer. I haven't quite decided ... the backup, alter it, then back it up again (if you ...
    joefish joefish March 2015 Sinclair Miscellaneous
  • Serial comms - duzzit work?Has anyone ever successfully got two 128K Speccies (of any variant) to communicate with each other over the SERIAL / RS232 / MIDI / AUX ports? I can'…

    ... can be used to loop-back one to the other in ... , having to shuffle the bits back into position.

    If ... bits saved to your receive buffer the better :)
    guesser guesser March 2015 Development
  • Multiplying. Again.Is there a faster way of hl=a*32 than doing add hl,hl 6 times?<div><br></div><div>I get the feeling that working with 8 bit registers for most of it …

    ... write character codes to the back-screen in the CharAde engine ... I keep reading numbers back from the screen buffer, forgetting that the ...
    joefish joefish June 2015 Development
  • Could ELITE's wireframe graphics be improvedWas watching this video last night comparing the BBC and Spectrum version of Elite: https://www.youtube.com/watch?v=Ov4OAteeGWs It seems that the…

    ... being much of an issue back in the day (we were ... probably by using a double buffer. Circles are also real circles ...
    Alcoholics Anonymous Alcoholics Anonymous August 2015 Games
  • Raycasting (3D Games!) with SpecBAS<div><font face="Arial, Verdana"><span style="font-size: 13.3333330154419px; line-height: normal;">Here's one I wrote just recently. I wanted to see …

    ... the nearby facing surfaces (eliminating back faces) according to the line ... this data you can depth-buffer them with just a one ... in vertical columns from your buffer. I actually did this with ...
    joefish joefish August 2015 Sinclair Basic
  • I feel they could have done this.After reading the ZX Spectrum ULA, I learned about how the ULA detects if the Z80 if going to access memory in the next cycle and stops it if the ULA…

    ... direct link to the video buffer, you're merely suggesting that ... /> 1. It somehow uses a buffer. That's RAM, no matter ... expensive component in a computer back then, so much that most ... chips.

    2. That buffer/RAM is still shared by ...
    Timmy Timmy August 2015 Hardware
  • Subtract 4 from an addressThis is a novice Z80 question really: I'm trying to vertical scroll my back buffer, but I'm not sure of the quickest way to apply an offset and mo…

    ... />
    Are you redrawing entire buffer during each frame while scrolling ... start at beginning of the buffer. While drawing to screen from ... the middle of buffer, go to bottom and back to top of ... buffer. During every frame you ...
    Ralf Ralf September 2015 Development
  • Full-screen 32 columns bicolor engine NIRVANA+I'm glad to announce the release of [b]NIRVANA+ ENGINE[/b], providing support for bicolor graphics (multicolor 8x2) in 32 columns for all standard Sp…

    ... could just use a small buffer centred on the main character ... I assume you could claw back some CPU time by keeping ...
    AndyC AndyC September 2015 Brand new software
  • is it possible to display code being loaded in a loader?hi, is it possible to display code being loaded in a loader?

    ... while adding to the back of the buffer from the tape. Eventually ... it starts writing to the buffer again until ENTER is pressed ... which it starts unloading the buffer again, and so on.
    Battle Bunny Battle Bunny September 2015 Development
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