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Search Again :: Adv Search 1000 results in 0.039s
<1…24252627282930…34>
  • Copy 4Kb in Assembly?Here's an interesting problem: what's the best way to copy a block of 4Kb in assembly? The most obvious solution is to use [B]LDIR[/B]: [CODE] l…

    ... 'd have kept pixel and attribute clearing as two different calls ... one without the other. Fast attribute change or invert for explosion ... , d to attribute value and b to 1 to get that effect)
    David Jones David Jones October 2013 Development
  • Rendering clipped glyphSometimes you need to render a glyph of arbitrary size to the screen. And clip it. For example: drawing a mouse cursor means combining drawing of a…

    ... to 2-pixel resolution, things get a bit easier. The row ... characters of the screen to attribute 0, so the sprite vanishes ...
    joefish joefish October 2013 Development
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... hl, attr_t ; update temporary attribute
    jr nz, co_change ... :
    call find_int1 ; get parameter
    cp 8 ... circle:
    rst get_char ; get current character
    cp ',' ... ld a, (hl) ; get exponent
    cp 129 ; ...
    chev chev October 2013 Development
  • Collision detection for interlocking shapes[SIZE=3][FONT=Calibri]I?m looking for some advice as I?m not sure how to resolve the following problem. I have an in memory structure that holds info…

    ... the shadow buffer
    2. Get a shape to draw
    attribute space and just draw each ... drawing rather than its colour attribute. Then if there is a ...
    Morkin Morkin October 2013 Development
  • z88dk and im2I set up a minimal IM2 mode so I can draw sprites for a laff [code] #include <string.h> #include <stdio.h> #include <im2.h> #include <stdlib.h> #in…

    ... finer control over what registers get saved. If you use C ... /> 53 ; d1ff - d1ff SP1.LIB attribute buffer
    54 ; d1f7 - d1fe ...
    Alcoholics Anonymous Alcoholics Anonymous October 2013 Development
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... (attr_p), a ; set permanent attribute
    ld hl, 0x0219 ; ... /> rst get_char ; else get character
    cp ctrl_enter ... + _s_posn_h) ; subtract to get true count
    ld ( ... new:
    call find_int1 ; get variable
    and a ; ...
    chev chev October 2013 Development
  • Which Syndicate to play?For years, one of the many games I've been meaning to try is Syndicate, which everyone says is really good. The trouble is, there are a lot of versio…

    ... , I mean you had to get parts that work together, fit ... old man with a flashing attribute.[/QUOTE]

    Better than ...
    ewgf ewgf October 2013 Chit chat
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ...
    call line_addr ; get line address
    jp ... /> call po_attr ; set attribute byte
    pop hl ...
    chev chev November 2013 Development
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... br /> ld hl, (attr_t) ; get temporary attribute and mask
    push hl ... first attribute of bottom line
    ld a, (de) ; get value
    chev chev November 2013 Development
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... ld hl, (attr_p) ; get permanent attribute and mask
    xor a ... ld (attr_t), hl ; get temporary attribute and mask
    ld ...
    chev chev November 2013 Development
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... /> call cl_attr ; get first attribute byte and count
    attribute byte
    dec bc ...
    chev chev November 2013 Development
  • Timex 2068 hi-color / hi-res modes.Hello. I know this is not a Timex forum but since it is a very close relative of the Speccy I thought I'd ask my question here. Does anyone know …

    ... I could see if proper attribute and pixel masking was happening ... nothing spectacular but you do get a feeling for the large ... looks like I didn't get to the text-related examples ... some text that you can get a look at how that ...
    Alcoholics Anonymous Alcoholics Anonymous November 2013 Sinclair Miscellaneous
  • Timex 2068 hi-color / hi-res modes.Hello. I know this is not a Timex forum but since it is a very close relative of the Speccy I thought I'd ask my question here. Does anyone know …

    ... you get smooth vertical scrolling and horizontal sprite movement without attribute clash ...
    chev chev November 2013 Sinclair Miscellaneous
  • Lime Rick, like Snake but with gravity[B]Lime Rick[/B] by [url=http://www.kissmaj7.com/games/]Kissmaj7[/url] is an elaborated version of "I Left Myself Behind". It's a puzzle game with an…

    ... of it.
    To get the snake attribute clash free, the body ...
    4throck 4throck November 2013 New game ideas
  • Lime Rick, like Snake but with gravity[B]Lime Rick[/B] by [url=http://www.kissmaj7.com/games/]Kissmaj7[/url] is an elaborated version of "I Left Myself Behind". It's a puzzle game with an…

    ... of it.
    To get the snake attribute clash free, the body ...
    Einar Saukas Einar Saukas November 2013 New game ideas
  • Clashbasher a new interface to reduce colour clashI've been working on this for a while now. [IMG]http://markamy.uwclub.net/cauldron.JPG[/IMG] Basicly its an add on for a 48k spectrum, which reinte…

    ... hoping to be able to get the display driver to play ... 'm going to combine the attribute handler into the videodriver cogs ... sort it out when I get a chance but I'm ...
    Basher Basher November 2013 Hardware
  • bitmap address to attribute addressI've searched, but I don't seem to find the proper keywords. I have a bitmap screen address in DL, character aligned (the address of the top byte of…

    ... a quick way to get the corresponding attribute address fiddling with that ...
    rich_chandler rich_chandler November 2013 Development
  • 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…

    ... refers to "multicolor 8x1" (an attribute for each pixel line, i ... referring to "multicolor 8x2" (an attribute for every 2 pixel lines ... weeks, as soon as I get back from vacation. My apologies ...
    clausjahn clausjahn November 2013 Brand new software
  • Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…

    ... relative pixel and/or character coordinates. Each move function can also ... see how far that can get you.

    EDIT:
    Alcoholics Anonymous Alcoholics Anonymous November 2013 Development
  • Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…

    ... />
    Figure out how to get SevenuP to do it for ... are drawn vertically at pixel coordinates -- moving the graphic down x ...
    Alcoholics Anonymous Alcoholics Anonymous November 2013 Development
  • SpeccyJamAnyone else seen this? [url]http://www.speccyjam.com/[/url] From the website:- [QUOTE]Speccy Jam is a regular world wide 1 week game jam, where ind…

    ... the rules, such as using attribute blocks, but only hardcore developers ... love for more people to get involved from this site, maybe ...
    RetroYak RetroYak November 2013 Games
  • Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…

    ... struct_sp1_Rect that indicates the character coordinates it occupies on screen.

    The sprite's character coordinates are updated after each sp1_MoveSpr ... .

    And just to get you thinking (this is more ...
    Alcoholics Anonymous Alcoholics Anonymous November 2013 Development
  • Documentation for SP1 for Z88DK?(I was going to post in [URL="http://www.worldofspectrum.org/forums/showthread.php?t=11729"]the other thread[/URL], so if a mod thinks this should go…

    ... /> 53 ; d1ff - d1ff SP1.LIB attribute buffer
    54 ; d1f7 - d1fe ... possible to use Im1 to get the frames counter working?
    Alcoholics Anonymous Alcoholics Anonymous November 2013 Development
  • P47 Thunderbolt Colour/Attribute hacking?I've seen someone (can't remember who now, sorry) hacking into monochrome games such as After The War and Outrun Europa and adding/changing the colou…

    ... block aren't a simple attribute copy either; it was just ... can work out how to get the colours to match.
    Battle Bunny Battle Bunny December 2013 Games
  • Sierra AGII've been thinking recently about starting a project to port Sierra's AGI engine to the ZX Spectrum 128. I've been reading the AGI specs and to me i…

    ... work very well due to attribute limitations. Each screen would need ... compression.

    You would get better results storing each screen ... 'm wondering about using an Attribute screen for the Priority Lines ...
    Einar Saukas Einar Saukas January 2014 Development
  • Sierra AGII've been thinking recently about starting a project to port Sierra's AGI engine to the ZX Spectrum 128. I've been reading the AGI specs and to me i…

    ... work very well due to attribute limitations. Each screen would need ... compression.

    You would get better results storing each screen ...
    manonfire manonfire January 2014 Development
  • 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…

    ... both pixel data and the attribute data. You could just store ... with the UDG index to get its address. Anyway, why is ... for drawing the pixel and attribute data. That is a hell ... or ladders. All with no attribute clash.

    Or, perhaps ...
    joefish joefish January 2014 Brand new software
  • ****ing Awesome Spectrum Engine (FASE)This is a new engine (sprites, tiles, map) for all ZX Spectrum machines. The engine set ups a runtime enviroment that leave between 24K and 30K byt…

    ... coord)
    5c40-5c4f bullet coordinates (not implemented yet)
    ...
    fd50-fdff Y coordinates table
    fe00-fe7f ... coord)
    5c40-5c4f bullet coordinates (not implemented yet)
    ... , I think you will get better results by creating move ...
    antoniovillena antoniovillena January 2014 Brand new software
  • Pseudo-3D map renderingHave been mulling this over for a while, until that isometric thread prompted me to ask. I'm not sure if this is officially classed as 2D, 2.5D, or 3…

    ... whole disassembly but this should get you started:

    Here ... />
    If you grabbed its attribute area, you'll find the ...
    Timmy Timmy January 2014 Development
  • Elliptical ChallengeSubsequent to the recent "Graph Plot" thread, I wrote this general purpose ellipse drawing routine which will plot (although it doesn't actually use …

    With the integer coordinates in a string for all ...
    Rotate: ;requires Bresenham ellipse coordinates to be in array p ... ),bc
    call $22aa ;PIXEL_ADD ;get x,y screen address
    Battle Bunny Battle Bunny January 2014 Development
<1…24252627282930…34>

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