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<1…12131415161718…34>
  • Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …

    ... data and POP to all four register pairs, then do a ... the shadow registers, and do four more POPs. This copies your ... too (they take an extra four cycles though, equivalent to a ... can put up with 8-pixel movement, is to work everything ...
    joefish joefish January 2012 Development
  • Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …

    ... data and POP to all four register pairs, then do a ... the shadow registers, and do four more POPs. This copies your ... too (they take an extra four cycles though, equivalent to a ... can put up with 8-pixel movement, is to work everything ...
    apenao apenao January 2012 Development
  • Which Speccy game had best border effectsIn truth, I'm just trying to remember a game from my youth, and the amazing border effect during pause is the only thing I can clearly recall about i…

    ... frequently than once in any four CPU cycles (ie only once ... /> Interestingly, the 'once in any four CPU cycles' restriction doesn't ... can do them at two pixel resolution (as demonstrated quite impressively ...
    gasman gasman January 2012 Games
  • Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …

    ... of those bits represents a pixel. So if you want to ... plot a pixel at position 0 then you ... 1 you'd need to shift all the bits in your ... draw your sprite at 2 pixel intervals you will only need ...
    bobs bobs January 2012 Development
  • Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …

    ... , in 1, 2 or 4 pixel steps, depending on the accuracy ... shifted closest to the precise pixel position, and copy that one ... as it only needs to shift over by 0, 2, 4 ...
    joefish joefish January 2012 Development
  • Pixelwise scrolling sideways - how many ways to do it?Not that I need to, but I've been wondering if there's a good way to do this that I haven't considered. Scrolling [B]pixelwise [/B]vertically is "ea…

    ... again, it's a 4-pixel scroll so if it is ... of each block absolutely necessary; four if feeling extravagant. From timing ...
    joefish joefish January 2012 Development
  • Pixelwise scrolling sideways - how many ways to do it?Not that I need to, but I've been wondering if there's a good way to do this that I haven't considered. Scrolling [B]pixelwise [/B]vertically is "ea…

    ... again, it's a 4-pixel scroll so if it is ... of each block absolutely necessary; four if feeling extravagant. From timing ...
    BiNMaN BiNMaN January 2012 Development
  • Pixelwise scrolling sideways - how many ways to do it?Not that I need to, but I've been wondering if there's a good way to do this that I haven't considered. Scrolling [B]pixelwise [/B]vertically is "ea…

    ... to spare, I'd have four copies of the background in ... pointers I could then 4-pixel scroll the main screen. I ... the Speccy for a 2-pixel scroll, or 2 buffers for ... a 4-pixel scroll. But sadly, without being ...
    joefish joefish January 2012 Development
  • Pixelwise scrolling sideways - how many ways to do it?Not that I need to, but I've been wondering if there's a good way to do this that I haven't considered. Scrolling [B]pixelwise [/B]vertically is "ea…

    ... though and the sprites are pixel-positioned. They also go behind ... [I]R-Type[/I] to shift it in-place in the ...
    joefish joefish January 2012 Development
  • SEUD - anyone?Did anyone make a game utilizing SEUD? I'm trying to use it, but one thing I couldn't do yet: a big map. I could only make a map with one screen! :) …

    ... to right then down one pixel row. Repeat for the rest ... . PGD, AGD and SEUD all shift things around as stuff gets ...
    jonathan jonathan February 2012 Development
  • Getting ZXDS to work with WOS ?Dear all, Ever since installing ZXDS on my DSXL, I've never been able to get it work with an online archive like WOS or the RZX Archive. Whenever …

    ... /> ;
    "
    ,
    and the four direction keys (Shifted 5, 6 ... option to turn off sticky shift would also be nice and ...
    Neil L Neil L February 2012 Emulators
  • A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…

    ... , to character precision; vertically, to pixel precision). Then you can designate ... with only, say, three or four sprites before the next interrupt ...
    joefish joefish March 2012 Brand new software
  • A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…

    ... , to character precision; vertically, to pixel precision). Then you can designate ... with only, say, three or four sprites before the next interrupt ...
    Einar Saukas Einar Saukas March 2012 Brand new software
  • Abbaye des morts[url]http://www.locomalito.com/juegos_abbaye_des_morts.php[/url] Looks like Spectrum, sounds like Spectrum, but it's not a Spectrum ('cause no colou…

    ... prepared routine able to put four masked 24x24 sprites in one ... case you definitely dont need shift anything (or at least you ...
    Fikee Fikee March 2012 New game ideas
  • Abbaye des morts[url]http://www.locomalito.com/juegos_abbaye_des_morts.php[/url] Looks like Spectrum, sounds like Spectrum, but it's not a Spectrum ('cause no colou…

    ... prepared routine able to put four masked 24x24 sprites in one ... case you definitely dont need shift anything (or at least you ...
    DaRkHoRaCe DaRkHoRaCe March 2012 New game ideas
  • Keyboard rebuild in the Plus modelNo extended keys implemented. You need 2 switches for each extended key, or a DPST switch and the wiring is more complex. It has a lot of work, but i…

    ... , but most of them are four layers of membrane on the ... or column as the associated shift.

    [IMG]http://www ...
    spodula spodula March 2012 Hardware
  • Routine for clearing screenI was looking for a 'nice' way of clearing a screen of graphics in Z80. After a ridiculous amount of time mucking around, this is the best and most …

    ... order but in fact every pixel is only visited once. ... .org/wiki/Linear_feedback_shift_register]Linear feedback shift register[/url]).

    ... />
    ; Map DE to pixel in screen buffer (HL)
    shift"
    ; Output: DE ...
    BloodBaz BloodBaz March 2012 Development
  • Routine for clearing screenI was looking for a 'nice' way of clearing a screen of graphics in Z80. After a ridiculous amount of time mucking around, this is the best and most …

    ... order but in fact every pixel is only visited once. It ... .org/wiki/Linear_feedback_shift_register]Linear feedback shift register[/url]).[/QUOTE]

    Morkin Morkin March 2012 Development
  • BorderTron 3000A little bit of speccy-related fun for a Friday afternoon... I've knocked together a program for Windows which I've called Bordertron 3000 (a suitabl…

    ... and put a red block four characters in from the left ... " color. where it inserts 8 pixel block in-between, pushing other ...
    ccowley ccowley April 2012 Announcements
  • The most powerful 8-bit machine, and CPU?Further to the discussion in: [url]http://www.worldofspectrum.org/forums/newreply.php?do=newreply&p=621787[/url] What actually is the best 8-bit ma…

    ... single instruction, allowing you to shift memory about quite nippily.
    pixel, horizontally per two bytes), a ...
    Jmk Jmk April 2012 Chit chat
  • Turn UDG to Attrribute blocksI'm trying to enlarge my UDG's to 8 x 8 character blocks per pixel, but struggling, is there any subroutine/program for enlarging UDG's x 8?

    ... PRINTing them, then checking each pixel. You could do it ... compromise by having 16 strings, four characters long each, representing ... . This represents the first four pixels. Then multiply by ... number. That represents the other four pixels. Then print that ...
    joefish joefish May 2012 Development
  • Abbaye des morts[url]http://www.locomalito.com/juegos_abbaye_des_morts.php[/url] Looks like Spectrum, sounds like Spectrum, but it's not a Spectrum ('cause no colou…

    ... since he can move at pixel position in all directions, ... does not have to shift the sprite horizontally. Pixel precision vertically means ... if you can stand losing pixel precision for Satan you ... is character oriented rather than pixel line oriented. But again ...
    Alcoholics Anonymous Alcoholics Anonymous May 2012 New game ideas
  • Abbaye des morts[url]http://www.locomalito.com/juegos_abbaye_des_morts.php[/url] Looks like Spectrum, sounds like Spectrum, but it's not a Spectrum ('cause no colou…

    ... since he can move at pixel position in all directions, ... does not have to shift the sprite horizontally. Pixel precision vertically means ... if you can stand losing pixel precision for Satan you ... is character oriented rather than pixel line oriented. But again ...
    DaRkHoRaCe DaRkHoRaCe May 2012 New game ideas
  • Need to scroll one column using m.c.I've used many of the available routines to scroll the entire screen in any direction, but I'm not being able to find one that would allow me to scro…

    ... /> ld l,0
    call SHIFT ;shift display column
    call $2d2b ... /> ld l,1
    call SHIFT ;shift attributes column
    ret
    pixel bytes and 24 attribute bytes ...
    ub880d ub880d May 2012 Development
  • Need to scroll one column using m.c.I've used many of the available routines to scroll the entire screen in any direction, but I'm not being able to find one that would allow me to scro…

    ... ,24" before the second "call SHIFT" so that both calls address ... " attributes but also for clearing pixel area, so basically you need ... test if it is in pixel area or attribute area and ...
    ub880d ub880d May 2012 Development
  • Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …

    ... I did 4-pixel horizontal scrolling by having four buffers, each pre ...
    joefish joefish May 2012 Development
  • ZX-Paintbrush version 2.2 releasedDear readers, Today I released ZX-Paintbrush 2.2 with many new features. I hope you'll like it. Please refer to ZX-Paintbrush's section of my homepa…

    ... now used Alt+BkSp/Alt+Shift+BkSp for Undo and Redo ... tools, the drawing of the pixel under the mouse position should ...
    clausjahn clausjahn May 2012 Emulators
  • Microhobby's Pixel A Pixel compo: help requiredHi! The start of this story is described in this topic: [url]http://www.worldofspectrum.org/forums/showthread.php?t=38955[/url] At the present mome…

    ... will result in missing pixel rows/columns and loss ... selection is contracted by 1 pixel. This doesn't make ... the black pixels. Holding shift select Cyan, Magenta and ... a center of a ZX pixel. This can be adjusted ... and click the according pixel on an image to ...
    moroz1999 moroz1999 May 2012 Sinclair Miscellaneous
  • Moving a line down the display in assembler?...It's not a "[I]how can I do it[/I]" question, it's more a "am I missing something in trying to do it a new way" kinda question. What I've been doing…

    ... = e.g 67 (three pixel line shift from equal position)
    ;DE ...
    Ralf Ralf June 2012 Development
  • GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…

    ... horrible. It's like a four colour version of Windows 95 ... mono 256x192 display with 16x16 pixel icons, which is completely the ...
    chev chev June 2012 Development
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