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Search Again :: Adv Search 1000 results in 0.093s
<1234567…34>
  • Save video directly from ZX 48K hardwareWhat is the best "proven" way (bets quality) to acquire video from a Speccy 48K ? I have converted the the TV out into AV,,with the usual mod (wit…

    ... the video is always jumping one pixel up and down.

    Does ... to insert the video into one 100Hz TV and try to ...
    RMartins RMartins April 2017 Hardware
  • How can I scroll a line of text and wrap perfectlyI know this is easy for most of you but for some reason I am messing it up. In Assembly Language I want to do the following: I have 1 line of text …

    ... reason I am messing it up.

    In Assembly Language ... ). I want to scroll the whole line left one pixel so that the ...
    robpearmain robpearmain October 2004 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…

    ... copied to to right, 1line up
    ex (sp),hl ... addone ;if not, just one line up
    push de ;save ... ;2016 is the distance up the display file to ... point to the next line up
    sub 7 ; ... re repeating the pixel scroll
    dec b ;one scroll less to go ...
    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…

    ... 2 or 4 pixel left or right horizontal scroll of the spectrum ... /> I can make a 1 one pixel scroll with:
    ... rl (hl)/dec ...
    rtunes rtunes March 2003 Sinclair Miscellaneous
  • ScrollingBit of a daft topic but anyway... Which game had the best scrolling? I would have to volunteer Commando and its silky-smooth scrolling. A particula…

    ...

    ; Scroll up

    ld hl,04100h ; second pixel line address ... 'd add to move down one pixel)
    ; to say, HL (which ... line
    ; to scroll into the end of another one!
    ; this ...
    Anonymous Anonymous June 2002 Games
  • Scrolling Loader CounterPlease can someone help me with writing a scrolling counter for a loading system. I like the Hewson counter so i`ve taken the font from zynaps loade…

    ... br /> inc h ;move one pixel down
    djnz repeat ... /> but it just printing one character somewhere on screen. you ... /> [/code]
    note one thing:
    when we decide ... leads that after we scroll "null" up slowly the "9 ...
    Fikee Fikee November 2006 Development
  • Sceen$ helpMost people have used screen$ at some time or another and for me what I want to do is use it or something like it as a start screen before the game p…

    ... image would be 'shifted' by one pixel to the left.
    [/QUOTE ... would cause things to scroll one pixel vertically. To scroll things horizontally, you'd ... can persuade it to pick up UDGs from somewhere else in ...
    gasman gasman May 2007 Sinclair Basic
  • 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…

    ... double width text messages to scroll across the bottom of ... we know that each pixel row will take up 30 bytes (double ... buffer address when moving down one pixel row. z88dk does not ... }
    [/code]

    First up we declare some temporary variables ...
    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…

    ... be that needs to continually scroll accross the screen? Or will ... ]

    The subroutine should scroll one pixel (and yes, the message enters ... instead and see what comes up :-)
    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…

    ... so your "scroll-test.c" became module "scroll".
    < ... br /> // Scroll the double printed message 1 pixel at a time ... I bring this up is because you ... hl = new display address down one pixel row
    [/code]
    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…

    ... up. One is to do the scroll everry two frames. Split the buffer pixel ... scroll the message on screen directly. With the screen scrolled left one pixel ... be used to scroll a pixel row on screen left one pixel (adriaan's ...
    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…

    ... loop do the following: scroll the scanline left one pixel (been done already ... last display byte of the pixel row. You shouldn't even ... .

    Next post coming up shortly...
    Alcoholics Anonymous Alcoholics Anonymous August 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…

    ... this time but at least one up timer (as in a ... that counts up to a maximum value) and one down timer ... player's turn. The up timer is necessary because ... sp1 library internally breaks up a sprite into its ... is to scroll the message on row 20 left one pixel:
    ...
    Alcoholics Anonymous Alcoholics Anonymous October 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…

    ... copied to to right, 1line up
    ex (sp),hl ... addone ;if not, just one line up
    push de ;save ... ;2016 is the distance up the display file to ... point to the next line up
    sub 7 ; ... re repeating the pixel scroll
    dec b ;one scroll less to go ...
    bigjon bigjon February 2008 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…

    ... pop. So the fastest scroll you'll get is ... = de = destination address for pixel row copy
    ld h ... pop de ; address of pixel row above becomes the destination ... If you try this post up a snap so we ... , scrolling by more than one pixel, or moving to a ...
    Alcoholics Anonymous Alcoholics Anonymous February 2008 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…

    ... on the screen starting one pixel line higher? Anyone know ... ; destination address in last pixel row
    ld ( ... in a pixel row. Popping moves up in memory ... 't even scroll the screen in pixel row order ... to hard code the scroll in a single monolithic ...
    Alcoholics Anonymous Alcoholics Anonymous February 2008 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…

    ... bytes from another pixel row but one character up. The scroll will work properly ... sp addresses are perfectly lined up with pixel rows and you can ... than 1 pixel in 1/50s or a total scroll time of ... faster you have to scroll by more than one pixel at a time ...
    Alcoholics Anonymous Alcoholics Anonymous February 2008 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…

    ...
    If you move things one pixel at a time at 50 ... same rate, but the first one is smoother.

    ... [QUOTE=dansauk;523177]The cobra scroll is at 50fps, it's ... (lots of them) take up the rest of the 2nd ... bit of time taken up with preparing the routine ...
    joefish joefish April 2011 Development
  • Up/Down Left/Right scrollCan anybody give a newbie some pointer to simple one char scrolling by pixel? I've looked at a lot of resources, but as you can imagine, it's all a …

    What are you trying to scroll? The screen or sprite graphics ... .

    3* Since one pixel shift at a time could ... be the byte to look up for shifting. The remnant table ... write to by moving down one pixel and restoring the column position ...
    Alcoholics Anonymous Alcoholics Anonymous November 2011 Development
  • Exilei\'m sure this has been brought up before but couldn't find a thread in 'New Game Ideas'. Why did the Spectrum never get a port of the BBC game Exile…

    ... . If you do give up on screen buffering on a ... can do the pre-shifted scroll in a spare uncontended ... ].

    For single-pixel scrolls you can use a ... situ. Any more than one pixel though and it's less ... go any faster than 1 pixel per refresh.

    joefish joefish March 2012 New game ideas
  • Horizontal Scrolling/Per Character gamesHello. Can anyone give me the titles of some Speccy games (preferably good ones, but I don't mind hearing about bad ones too) that scroll the playin…

    ... basically two main methods - one is to scroll some data in-memory ... either method. If you want pixel scrolling, again there's not ... as not to mess it up. [I]Zynaps[/I] does the ... disadvantage is that you use up a lot of memory on ...
    joefish joefish June 2013 Games
  • Horizontal Scrolling/Per Character gamesHello. Can anyone give me the titles of some Speccy games (preferably good ones, but I don't mind hearing about bad ones too) that scroll the playin…

    ... basically two main methods - one is to scroll some data in-memory ... either method. If you want pixel scrolling, again there's not ... as not to mess it up. [I]Zynaps[/I] does the ... disadvantage is that you use up a lot of memory on ...
    Ivanzx Ivanzx June 2013 Games
  • 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 +…

    ... Horizontally with 8-pixel resolution, 2-pixel resolution vertically. Although ... one pixel shorter in the body to better line up ... although their attributes will scroll, their pixels won't ... pixel resolution using ATTRibutes, so they'd automatically scroll ...
    joefish joefish March 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…

    ... does same thing in horizontal scroll level.[/QUOTE]

    ... level you have to jump up and shoot / collect objects ... to keep the frame rate up. The trick with these ... instructions work fine for one pixel scrolling. For two pixel scrolling, you really ...
    joefish joefish September 2014 Development
  • Megatree DevelopmentHi All, I have been messing around with developing a concept for the unwritten game Megatree. Here is a video of what I have so far written on a 48…

    ... that they do not use scroll?[/QUOTE]
    It definitely ... held in a buffer) across one pixel, then after every eight ... can't easily speed it up.

    The ... even slower and worked up to its regular scrolling ... 't speed it up, because no-one wants to see ...
    joefish joefish October 2014 Development
  • Scrolling colourful graphicsHi,<br>I'm experimenting with scrolling colourful graphics. I'm keeping 8 pixel empty gap between colourful blocks to avoid colour clash.<br><br>But …

    ... shift the attributes before you scroll the pixels left.
    one-pixel scroll, your objects can actually occupy one pixel of ... that empty leading square. For a two-pixel scroll ... (presumably pre-shifted) it can take up two ...
    joefish joefish June 2015 Development
  • r-type in development for the sam coupehttp://cookingcircle.co.uk/ we need z80 coders graphics artists and audio this is the amstrad cpc 6128 version: https://www.youtube.com/watc…

    ... to scroll left of right, increase / decrease screen pointer with one byte ... . On a SAM this will give you a two pixel ... horizontal scroll. If you want to scroll up or down ... this will give you pixel vertical scroll. You can scroll as fast as ...
    Stefan Drissen Stefan Drissen September 2015 Development
  • 2 scrolling linesHow would you draw, delete and scroll a 2 line landscape? [img]http://i1142.photobucket.com/albums/n608/daveyboyhughes/scramblines_zpsw0r2joew.png…

    ... have a rolling character-targeting scroll function that shifts itself along ... those. By starting them shifted one pixel over then the last thing ... , so it would tidy itself up as it went along. You ... . But the scenery would end up looking a lot more angular ...
    joefish joefish April 2017 Development
<1234567…34>

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