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Search Again :: Adv Search 1000 results in 0.116s
<1234567…34>
  • Smooth Masked Sprites using fast page flip on 48k Part 2Ok, After all the suggestions in Part 1, which were all excellent (Thankyou), I opted on the following: I have 2 x 6k Offscreen areas (Yes, that's …

    ... TO BUFFER
    MOVE AND DRAW SPRITES TO BUFFER
    SET UPDATED FLAG TO ... IF FLAG IS 1, FAST COPY BUFFER TO SCREEN

    ... 256 BYTES FORWARD IN MEMORY TO FB0AH
    ... br /> ; ; CONVERTS A SCREEN ADDRESS TO AN ATTRIBUTE ADDRESS
    ; ...
    robpearmain robpearmain September 2004 Development
  • Why do people move to the UK?I know that if I replaced "to" with "from" it would also be a valid question. People usually say that they move to another country in search of a be…

    ... that if I replaced "to" with "from" it would ... People usually say that they move to another country in search of ... to move to countries like Germany, Sweden, Luxembourg, and why people used to want to move to ... races and countries want to move over there?
    zxbruno zxbruno August 2011 Chit chat
  • Converting jpeg/bmp/gif to SCREEN$ fileMight be a bit of a long shot, but is there any way of converting an image file with the correct dimensions/colours to SCREEN$ file that can be loade…

    ... with the correct dimensions/colours to SCREEN$ file that can be loaded ... up with a converter program to do this.

    Failing ...
    daveysludge daveysludge January 2012 Development
  • Memory move routine?Hi Folks, I have been searching for the thread that covers the memory move routine that uses a$=b$ via DEF FN. I thought it was written by Battle B…

    ... the thread that covers the memory move routine that uses a$=b ...
    Paddy Coleman Paddy Coleman February 2012 Sinclair Basic
  • BBC to screen live game tournamenthttp://www.bbc.co.uk/news/technology-34475037 interesting, could be the start of something? [quote]The BBC is to stream live coverage of a majo…

    ... />
    [quote]The BBC is to stream live coverage of a ... /> maybe we can get them to screen a knockout manic miner tourny ...
    mel the bell mel the bell October 2015 Chit chat
  • line, plot and circle in whole 256x192 displayhi! are there some way to draw lines, or whatever, in the whole 256x192 display, than just the above 256x176 part? (this is the msx1 version i made o…

    ... /engraving.
    [CODE];Simple and fast plot/draw demo (assembles as ... /> ;--The coords are used to calculate the screen address ------------
    ;See 'Ian ... draw
    LD (HL),A ;move to screen
    POP HL ;coords
    roko roko September 2011 Sinclair Basic
  • FrameSyncIt was many many years ago since i programmed assembly on the spectrum but I just picked it up again for fun. Now this is one thing I can't remember…

    ... then control would be returned to your routine, ie. ... is situated in uncontended memory, memory access to screen either reading or writing ... border phase of the screen refresh (thats the first ... these phases of screen refresh contended memory can be accessed ...
    dmsmith dmsmith August 2005 Development
  • Ways to use double buffering in basicI was meddling with woody's print stream code where you can print characters at any pixel location on screen. I was playing with 12 sprites, very ann…

    ... a screen$ and then copy it to the 128's extra memory ( ... can use it to copy from that extra memory back to screen$. As the ... name suggestes it works similarly to the ... 'd lose the option to span memory banks with "saved blocks ...
    Alcoholics Anonymous Alcoholics Anonymous November 2006 Sinclair Basic
  • another c64 vs. Speccy site...[url]http://c64vsspectrum.com/[/url] 25 years and we are still brawling.. ;)

    ... . Even silly transfer from memory buffer to screen must be done by CPU ... needs to unroll some routines, pre-rotate graphics, store multiple screen buffers ... CPU power and fraction of memory. Due to that reason I would ...
    omega omega December 2007 Games
  • Dizzy EditorI fancy playing around with this, unfortunatley it's the age old problem of no ability to understand Russian that is holding me back. Can some kind …

    ... />
    CURSORS - Move tile

    T - Choose screen from map

    E - Enter screen number

    EDIT - Move to screen with cursors
    to screen

    DELETE - Clear screen

    ENTER ...
    mulder mulder November 2008 Sinclair Miscellaneous
  • Dizzy EditorI fancy playing around with this, unfortunatley it's the age old problem of no ability to understand Russian that is holding me back. Can some kind …

    ... here's a slight amendment to the above...

    Move tile

    T - Choose screen from map
    E - Enter screen number

    EDIT - Move to screen with cursors
    SPACE - Place tile to screen

    DELETE - ...
    mulder mulder December 2008 Sinclair Miscellaneous
  • Tool for saving prog op codes in one neat column?[deleted]

    ... Dumper which will send a memory dump to screen or printer for a ... /> Checksum? [hdn] "n"
    Screen or Printer? [sp] "s"
    to append to a string or poke memory instead of ... printing. Fuse lets you send printer output to ...
    Battle Bunny Battle Bunny December 2011 Development
  • RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…

    ... /> all routines deRCS and move at once, all ending ... , if a routine would move to screen adress SCR1 #C000 aswell ... 1 and moving to the correct screen is step 2. ... But it is an advantage to ... it the same screen source, but copied to $4000 and ...
    jamorski jamorski September 2013 Development
  • Better arrangement for video memory?While doing some documentation work for the ZX-Uno project, I compared the advantages of the weird layout of the ZX Spectrum against a linear layout.…

    ... current layout is optimized for fast character display, as you ... inc l
    inc d ;move to next scan
    djnz BucScan ... Y1 Y0

    Memory address (ZX Spectrum arrangement)
    to calculate the screen address from the ...
    mcleod_ideafix mcleod_ideafix September 2014 Development
  • Machine Code Sprites Example Code Using Char Based SystemBelow is my WIP code to do smooth screen wrapping sprites using char positions and offsets, as opposed to writing direct to a line (0-191) and shifti…

    ... />
    It is very fast (As I am overwriting the ... so we can print sprite to screen

    LD ... CALL PChar

    ; Move to next column, and wrap horizontally ... 256 bytes forward in memory to FB0Ah
    LD ...
    robpearmain robpearmain August 2004 Development
  • Fastest way to write something to screen$Hi, I just got pasmo.exe and start playing with attr scrolling, well, not scrolling, just write different values to a block and see if I can introdu…

    ... , just write different values to a block and see if ... the fastast way to fill a block of memory with 1 value ... was the fastest way to update the screen. I know that ldir ... /> _________________
    --
    packet forwarded to wrong interface


    AE.Vasconcelos AE.Vasconcelos April 2005 Development
  • Memory Map/ContentionHi I'm new to speccy coding (well I did some z80 coding a few years back - like 20yrs ago :) ), and I'd like to get back into writing some scrolling…

    ... ago :) ), and I'd like to get back into writing some ... wanted to ask is this a correct map for memory contention?< ... Rom
    4000-57ff 06k Screen Bits 256*192 bits
    Memory
    8000-FFFF 32k Fast Memory (well normal memory really :) )
    ZJones ZJones September 2006 Development
  • Conversion tool - bmp/gif to screen$Hihi Not sure if this is exactly the right place to ask, I don't see a software forum Is there a tool to convert a bmp or gif file to a screen$ sui…

    ... exactly the right place to ask, I don' ... or gif file to a screen$ suitable for spectrum ... use? I know there are tools to ... go from .scr to gif etc. but I want to be able to ... draw the screens on the PC and move them to ...
    Hideki Hideki June 2008 Development
  • Fastest way to clear a screen.We haven't had an optimizing fun for some time, so let's have some: What's the fastest way to clear a screen (i.e., filling the 6912 bytes at 16384 w…

    ... 's the fastest way to clear a screen (i.e., filling the ... let's ignore the memory contention.

    To start with, here ... 's about 2 50Hz frames to put it in perspective. So ...
    Patrik Rak Patrik Rak February 2009 Development
  • WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…

    ... fast block RAM to implement an extra memory page (if needed). In addition to ... as a copper processor to ease split screen implementation, or raster ... tension generated will be enough to move it.

    ... for the surface tension to move them into place with ...
    mcleod_ideafix mcleod_ideafix August 2012 Hardware
  • A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…

    ... a full-screen game will typically need more available memory (since ... to move more stuff on screen), so it typically doesn't have much memory ... left to ... common for "full-screen" Spectrum games to have this extra ...
    Einar Saukas Einar Saukas November 2013 Brand new software
  • byte to screen eventI have another question regarding assembly routine in MMCOYZXS by Toni Baker page's 87-88 [QUOTE]21A440 LD HL,40A4 11083F LD DE,3F08 0608 LD B,08…

    ... character @ 0x3Fxx are written to the screen location 0x4xA4 is not when ... when stepping through it seems to happen at:
    24 INC ... the screen location are passed the 'A' register which contains the memory ...
    username username April 2014 Sinclair Miscellaneous
  • Adding touch events to JS SpeccyPlayed around with adding touch events to jsspeccy2 yesterday. I got it detecting RGB values of individual pixels on the spectrum screen so it can (e…

    ... individual pixels on the spectrum screen so it can (eventually) ... got the joystick sending keyCodes to the emulator. (I say ... wiping out scenery when I move diagonally - bug in collision ... dropping properly and corrupting screen memory - had to break off in the ...
    colonel32 colonel32 January 2017 Emulators
  • 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…

    ...
    buffer_ss=buffer+_START; // move screen check start to start of buffer attr ... ),a ; 7t - literal to screen
    call _ulzfa050 ; 17t - move de on one ... a,$40 ; 7t - move into screen memory (basically add 16384 to the offset)
    TomD TomD April 2017 Development
  • Fake screenshots? No - now it's REAL screenshotsOk then. A few weeks ago I said I will show You the new gfx-mode of Speccy and - here it is: [url="http://republika.pl/hooy_prg/hprg.zip"]http://rep…

    ... when the attributer are transfered to screen, and because this is ... fast tap laod with load "" scren$ and looping. ( come to ... screen there is almost half of the processor time left to move ... converted images directly into texture memory for greater speed. You ...
    LCD LCD March 2003 Sinclair Miscellaneous
  • Bloody idiotic software companies!Why is it that so many companies these days assume (arseume?) that everyone has an Internet connection at home?? That's far from being true, at least…

    ... card, admittedly, despite the memory size), yet it runs fine ... HL2 might move fast enough and smooth enough when the screen is clear ... memory, the "slightly" faster the game will run due to extra space to ... just quoted the card's memory size to give an idea of ...
    ewgf ewgf September 2005 Chit chat
  • 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…

    ... -bit entries are taken as memory addresses storing 8-bytes of ... the final version is copied to screen, and is how flicker free ... chosen so that draw is fast as possible, naturally, and this ... byte commands within a string to move cursors up, down, left, right ...
    Alcoholics Anonymous Alcoholics Anonymous December 2006 Development
  • MULTITECH pictures[url]http://velesoft.speccy.cz/data-gear.htm[/url]

    ... [/U], but if you need to compare it...

    Unless ... designed for fast data transfers or fast search (memory-memory, port-memory,..etc.). Full screen multicolor ... that demonstrates power of DMA (= move memory block 6144 bytes, variable destination ...
    omega omega October 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…

    ... call function "f" to modify the address to move down one pixel row ... printer to be able to print to the screen AND to a block of memory (for ... fast enough to avoid flicker so the scrolling now gets applied directly to screen ...
    Alcoholics Anonymous Alcoholics Anonymous October 2007 Development
<1234567…34>

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