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Search Again :: Adv Search 1000 results in 0.062s
<1234567…34>
  • Smooth (vertical) scrolling on ZX SpectrumI was just thinking about this. You know, you have systems like Atari 2600 or Sega SG-1000 that have no hardware scroll, but they have games that sti…

    ... full-screen. But then a 2-pixel scroll at 50Hz would be far ... is that's deliberately slowed down to 2 frames, not 1.
    joefish joefish February 2011 Games
  • Smooth (vertical) scrolling on ZX SpectrumI was just thinking about this. You know, you have systems like Atari 2600 or Sega SG-1000 that have no hardware scroll, but they have games that sti…

    ... full-screen. But then a 2-pixel scroll at 50Hz would be far ... is that's deliberately slowed down to 2 frames, not 1.[/QUOTE ...
    maiki maiki February 2011 Games
  • 50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…

    ... that'd mean everything slows down and I could probably only ... would probably drop to a 2-pixel scroll at 25Hz (like [I]Cobra ... as I could use those 2 block types to add incidental ...
    joefish joefish April 2011 Development
  • Horizontal scrollDoes anyone know how to do a 2 or 4 pixel left or right horizontal scroll of the spectrum screen. I can make a 1 one pixel scroll with: ... rl (hl…

    ... several ways of optimizing the scroll code presented, but thats not ... way to do a one pixel scroll is like jonathan said, using ... do a faster 2 pixel scroll than call this routine 2 times.

    rtunes rtunes March 2003 Sinclair Miscellaneous
  • 4-pixel scrollingDo you think is 4-pixel scrolling accetable for horizontal shooter ? (aka do u like Chronos ? :)

    You might not have much of a choice...

    Does anything other than Ghosts N Goblins
    (which has a very sneaky pre-shifted engine) have a fast 2-pixel scroll?
    Jmk Jmk February 2006 Development
  • 50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…

    ... , it's only really 1 pixel of difference at each end ... . If it was a 2 pixel scroll, the 2 pixels on the end could ... attribute scrolling (joefish does not scroll attribute map) is not helping ...
    joefish joefish March 2011 Development
  • 50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…

    ... the pre-shifting for a 2-pixel scroll.
    joefish joefish April 2011 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…

    ... I can do the Cobra scroll over the full screen at ... pointers I could then 4-pixel scroll the main screen. I could ... Speccy for a 2-pixel scroll, or 2 buffers for a 4-pixel scroll. But sadly ...
    joefish joefish January 2012 Development
  • Porting Blues Brothers CPC->ZX...just an ideaI've just watched a video of the CPC version of the Blues Brothers games by Titus [url]http://www.youtube.com/watch?v=6DOj-Ta3Ek4...Based[/url] on th…

    ... /> If I do the paged scroll method, then the point where ... have a play with the 2 pixel scroll at some time too.
    polomint polomint June 2014 New game ideas
  • Porting Blues Brothers CPC->ZX...just an ideaI've just watched a video of the CPC version of the Blues Brothers games by Titus [url]http://www.youtube.com/watch?v=6DOj-Ta3Ek4...Based[/url] on th…

    2 pixel scroll sounds like colour clash :D< ...
    4throck 4throck June 2014 New game ideas
  • Porting Blues Brothers CPC->ZX...just an ideaI've just watched a video of the CPC version of the Blues Brothers games by Titus [url]http://www.youtube.com/watch?v=6DOj-Ta3Ek4...Based[/url] on th…

    [QUOTE=4throck;774327]2 pixel scroll sounds like colour clash :D< ...
    polomint polomint June 2014 New game ideas
  • Porting Blues Brothers CPC->ZX...just an ideaI've just watched a video of the CPC version of the Blues Brothers games by Titus [url]http://www.youtube.com/watch?v=6DOj-Ta3Ek4...Based[/url] on th…

    [QUOTE=4throck;774327]2 pixel scroll sounds like colour clash :D< ...
    Sokurah Sokurah June 2014 New game ideas
  • help sought with first foray into machine code - pixel scrolldownI have started to code my first machine code program, a simple roadrace game. I've based it around the pixel scrolldown routine in 40 Best Machine Co…

    ... br />
    [code];scroll down 1 pixel at a time
    org ... down
    ld a,c ;check line count
    cp 2 ... repeating the pixel scroll
    dec b ;one scroll less to ... scrlcount ;otherwise continue with another pixel scroll
    endroutine
    ret ...
    bigjon bigjon February 2008 Development
  • Horizontal scrollDoes anyone know how to do a 2 or 4 pixel left or right horizontal scroll of the spectrum screen. I can make a 1 one pixel scroll with: ... rl (hl…

    ... do a 2 or 4 pixel left or right horizontal scroll of the ... can make a 1 one pixel scroll with:
    ... rl (hl)/dec ... ...
    and call this routine 2 or 4 times. But this ...
    rtunes rtunes March 2003 Sinclair Miscellaneous
  • Smooth Screen Scrolling RoutineHi everyone, this is a follow up to the thread on smooth screen scrolling. As promised here is the code for the routine. It's pretty long and fairl…

    ... by the number of tiles down (currently 6). Each tile ... -shifted into 4 positions, giving 2 pixel precision.


    ... RET



    SCROLL DI

    LD (SCRMODA ... AND 224 ;position and move down 2
    ADD A,68 ; ...
    dmsmith dmsmith September 2004 Development
  • Specdrum 2 Newer versionHi there, [COLOR="DarkOrange"]Just letting you know that the newer version of specdrum 2 has been uploaded to the wos server this new version has so…

    ... the newer version of specdrum 2 has been uploaded to the ... to the remakes page and scroll down to where it says
    wadfm wadfm February 2008 Announcements
  • Add horizontal hardware scroll to ULA+In this case we must read a bit in the ULA+ for test if supported. And the future software that uses it must have to branch: 1. If hardware scroll i…

    ... . If hardware scroll is supported, use smoth scroll (1 pixel scroll). In this ... is not supported, use 2 pixel step scroll. Also this code need ... />
    My idea for hardware scroll is simple. Store in a ... 0, first, second.. seventh pixel. Then use at the end ...
    antoniovillena antoniovillena October 2011 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…

    ... z80, you might want to scroll down to the "The IM2.LIB ... .

    In "im 2" mode, the attached peripheral that ... br /> ; d4f7 - d4fe SP1.LIB pixel buffer
    ; d4ee - d4f6 SP1 ... ; d300 - d400 IM2.LIB im 2 vector table
    ; d100 - d2ff ...
    Alcoholics Anonymous Alcoholics Anonymous May 2006 Development
  • Alien8 style 3D Tiles - TheoryHello, Are there any articles etc explaining how to do 3d style tiles, i.e. when to redraw those in front etc. I would guess you would need to work…

    ... edges horizontally and to the pixel vertically

    ... that I used to scroll objects across that were ... point on the screen in 2 pixel increments) - so when ... rotated it into the scroll buffer before masking into ... the top pixel line then move down a line ...
    robpearmain robpearmain August 2006 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…

    ... width text messages to scroll across the bottom of ... to the next line). 2- the scroll routine will be dealing ... buffer address when moving down one pixel row. z88dk does not ... br /> }

    buf += 2;
    }
    }
    [/code]
    Alcoholics Anonymous Alcoholics Anonymous June 2007 Development
  • help sought with first foray into machine code - pixel scrolldownI have started to code my first machine code program, a simple roadrace game. I've based it around the pixel scrolldown routine in 40 Best Machine Co…

    ... as well.
    [CODE];scroll down 1 pixel at a time
    ... down
    ld a,c ;check line count
    cp 2 ... repeating the pixel scroll
    dec b ;one scroll less to ... scrlcount ;otherwise continue with another pixel scroll
    endroutine
    ret ...
    bigjon bigjon February 2008 Development
  • what were the things the Speccy architecture was good for?I don't know a hell of a lot about all the different computers hardware and I wanted to know if the way the Spectrum was built lent itself to certain…

    ... />
    The C64 can scroll down to pixel level in hardware both horizontally ... The CPC can hardware scroll vertically down to pixel level and horizontally to ... possible to use interrupts to scroll parts of the screen ... did this was Mega Man 2 with it's late ...
    Matt_B Matt_B November 2008 Sinclair Miscellaneous
  • Games in machine codeHi everyone, How do go about doing multiple shots like a machine gun, do you have to store every x and y position of each bullet? When you kill som…

    ... /> BLOCK: A single 16*16 pixel bitmap.

    [B]CHAPTER ... DWORD Playfield 2 horizontal scroll.
    PF2YSCR 0x001F7728 DWORD Playfield 2 vertical scroll.
    JPADD 1 Pad down.
    JPADL 2 Pad left.
    JPADR ...
    ASM ASM October 2010 Development
  • Better or Worst! Speccy vs C64Just wanted to see what games you all thought looked better or played better on the Speccy or the C64? I always thought that Renegade & Target Ren…

    ... version, even down to the way the pixel-scrolling foreground ... with wider pixels, a pixel scroll only has to run at ... But it is moving in pixel steps. Although in a ... . If you slow it down too much, it's ... also double the data per pixel (2 bits instead of 1) ...
    Alcoholics Anonymous Alcoholics Anonymous August 2011 Sinclair Miscellaneous
  • New version of ZXDS?Hi Patrik, Just wondering if you are planning to release a new version of ZXDS? If so, any chance you would be willing to share a possible date and…

    ... function) Perhaps being able to scroll down pages of slots (doesn't ... /> 2) Have a different coloured margin around each slot icon, 1-pixel ...
    ZnorXman ZnorXman September 2011 Emulators
  • SP1 library questionsI'm working on my first game. I've not written a game since the late 1980s and that was a text based multiuser dungeon for BBC Micros with econet... …

    ... shifting sprite graphics horizontally for pixel placement.

    ... />
    [quote]
    2. Deleting sprites. I note the ... a specific character position with pixel offsets (0-7). ... view=markup"]spectrum.h[/URL]. Scroll down to the "display functions" ...
    Alcoholics Anonymous Alcoholics Anonymous October 2011 Development
  • What would you do with four joysticks?Anyone got some inspiring ideas for four-player games, or twin-stick two-player games..? I can think of, for four players: [I]Warlords[/I] (Atari) […

    ... be instantly scrolled vertically in 2-pixel steps. So, you could ... draw a fixed 8x2 pixel pattern over the entire screen ... (like 00001111 for 4x2 pixel coloured blocks) and draw all ... using attributes, then scroll them up and down just by moving the ...
    joefish joefish October 2013 New game ideas
  • Scrolling Bi-Colour Engine for 4-Player GamesJust putting this code up for people to have a look at. Far from finished. Should simply compile and run a bit of a demo. Only good for 128K and +…

    ... top border. Horizontally with 8-pixel resolution, 2-pixel resolution vertically. Although the ... can be scrolled up or down simply by changing a pointer ... because although their attributes will scroll, their pixels won't.
    joefish joefish March 2014 Development
  • Scrolling Bi-Colour Engine for 4-Player GamesJust putting this code up for people to have a look at. Far from finished. Should simply compile and run a bit of a demo. Only good for 128K and +…

    ... /> The scroll looks a bit rough because it's 2-pixel high bands ... of colour moving 2 pixels at ... is that you couldn't scroll it. The engine can shift ... entire attribute file up or down in one frame; it can ...
    joefish joefish March 2014 Development
  • ZX Alien BreedNot sure if this has been mentioned already (I did trawl the threads but couldn't see anything :smile: ), but I've always hankered after a Speccy Ali…

    ... that the map doesn't scroll. It also means I can ... in 2-pixel steps. There is no need to pre-shift up/down ... need to pre-shift up/down facing sprites.
    Obviously, this ...
    LuMan LuMan March 2014 New game ideas
<1234567…34>

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