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<1…11121314151617…34>
  • 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) […

    ... them into one piece of code that can adjust itself to ... /> The colour map is a linear buffer that is actually 32 ... the new position. The game code will have to run in ... on a 128K, different game code can be paged in at ...
    joefish joefish October 2013 New game ideas
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... ! I've called this one "linear". It loads the screen progressively ... .googlecode.com/svn/trunk/examples/linear-demo/linear-demo.tzx"]Here's ... [/URL]. Also, the [URL="https://code.google.com/p/47loader/wiki ...
    stephenw32768 stephenw32768 November 2013 Development
  • FZX: a new standard format and driver for proportional fonts[B]FZX[/B] is a very compact and efficient (although extremely flexible and powerful) standard format to create new fonts for the ZX-Spectrum. It sup…

    ... or Timex screen (some new code would be needed for hi ... supports as they mostly have linear screen buffers. Obviously the ZX81 ...
    chev chev November 2013 Brand new software
  • 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…

    ... tiles in linear fashion
    (also almost the first z80 code I ... " you provide.
    (many lazy code in there as I didnt ... all opcodes yet etc)
    [CODE]
    ld l,9 ;height ...
    wait
    jp wait[/CODE]
    enthusi enthusi December 2013 Brand new software
  • Charlie Brooker: Videogames Changed the World (C4 30th Nov 9pm)Hiya! Don't think anyone else has mentioned this but I saw an ad for it yesterday and it looks worth a watch... Charlie Brooker: Videogames Changed …

    ... /> - The levels feel much more linear than in Doom 1 and ... hoping to find the elusive code for the next weapons locker ...
    ewgf ewgf December 2013 Chit chat
  • Beepola v1.08 AvailableA new version of Beepoa, v1.08, is now available for download from:- [url]http://freestuff.grok.co.uk/beepola/[/url] (1.76MB zipped exe, no installe…

    ... , at minimum. Most of that code is just copying over with ... with modifying the sound engines' code, as chris says, is that ... the timing. If you add code into loops the pitch drops ... pitch errors are actually non-linear (high frequencies will be distorted ...
    Alcoholics Anonymous Alcoholics Anonymous January 2014 Announcements
  • Beepola v1.08 AvailableA new version of Beepoa, v1.08, is now available for download from:- [url]http://freestuff.grok.co.uk/beepola/[/url] (1.76MB zipped exe, no installe…

    ... with modifying the sound engines' code, as chris says, is that ... the timing. If you add code into loops the pitch drops ... pitch errors are actually non-linear (high frequencies will be distorted ... with very timing specific z80 code for the beeper on the ...
    Timmy Timmy January 2014 Announcements
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... a starting point. There is code there to create a frequency ... function is this:

    [code]
    XLIB SPHuffDecode

    jp nextcodebit
    [/code]

    Feel free to ... 128k of it) like a linear address space. You can seek ...
    Alcoholics Anonymous Alcoholics Anonymous January 2014 Brand new software
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... trying to access is a linear treatment of all 128k behind ... main 64k bank where the code runs.

    The huffman ...
    Alcoholics Anonymous Alcoholics Anonymous January 2014 Brand new software
  • Deterministic random number generatorI'm looking for a random number generator in assembly which, given a seed, the generated sequence is always the same. You change the seed, you get a …

    ... his machine :D

    [code]

    ; ===============================================================
    ; Dec 2013 ...
    Alcoholics Anonymous Alcoholics Anonymous February 2014 Development
  • Animated attribute revealA new challenge to solve next. I would like to create an animated attribute reveal in machine code by having my 768 byte attributes held in ram whic…

    ... /lfsr/lfsr_table.pdf]Table of Linear Feedback Shift Registers[/url]. There ... ] file Random.TXT .

    [code]
    org 23296

    ei
    ret
    [/code]
    Battle Bunny Battle Bunny February 2014 Development
  • Is ESXDOS flexible enough to incorporate e.g. Spectranet commands?I was just discussing the idea with someone about the wish some people have to be able to combine interfaces such as DivIDE (Plus) / DivMMC EnJOY! wi…

    ... A register.

    [code]
    __stdio_memstream_driver:

    [/code]

    The loop ... state machine:

    [code]
    __stdio_scanf_sm_decimal:

    ... a buffer allocator and linear buffer data type ...
    Alcoholics Anonymous Alcoholics Anonymous February 2014 Hardware
  • bytes bits balonyNever mind

    ... /> Well, you've just rediscovered linear screen organization :)

    Yes ... ready you use some fast code to copy it to screen ...
    Ralf Ralf April 2014 Sinclair Miscellaneous
  • Spectrum screen layoutSeeing the thread on displacement I was wondering why the spectrum had the stupid screen split into three sections and the addresses for each section…

    That code is buggy :)

    [ ... same difficulty to do a linear buffer as it is ... do this non-linear one but the non-linear one requires ... time of your code whereas with the non-linear method is ... been speculated that the non-linear order of the buffer ...
    Alcoholics Anonymous Alcoholics Anonymous May 2014 Sinclair Miscellaneous
  • 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…

    ... propeller code and the code for ... YouTUBE]

    [CODE] {{
    ┌─────────────────────────────────────────┬────────────────┬────────────────────────┬─────────────────┐
    ... │ breath volume: silent..loud, linear │ │
    │ │ ga ...
    Basher Basher August 2014 Hardware
  • maths questionNB this will probably show what a tragically low level understanding of maths I have, but hey ho :-) for some reason the other day I suddenly remem…

    ... in a minute):

    [code]
    sin x = x - x ... ^3 = x*x*x
    [/code]

    So if you ... can be replaced by a linear combination of other terms. In ...
    Alcoholics Anonymous Alcoholics Anonymous August 2014 Chit chat
  • 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.…

    ... the C64 attribute layout is linear. [I](EDIT 1: not true ... interface as yours):

    [code]
    ;INPUT: H : valid character ... /> ld h,a
    ret[/code]

    35 T-states ...
    mcleod_ideafix mcleod_ideafix September 2014 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.…

    ... calls with nothing returned, or linear assembly programming.

    Though ... first character is code 0, the next one code 1, etc. but ...
    joefish joefish September 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…

    ... but I use the following code on my current demo.
    Uses a screen buffer in linear format, not the same way ...
    richdotward richdotward September 2014 Development
  • Creating a linked list in Z80[FONT=Calibri][SIZE=3]I am using a circular buffer to store tiles to be displayed on the screen. Tiles only appear for a set period of time, so when …

    ... are small.

    The code to implement Einar's array ... than a linear array since you need to include code that detects ... . The only savings versus the linear array is you avoid the ...
    Alcoholics Anonymous Alcoholics Anonymous October 2014 Development
  • 64x48 monochrome big pixels display ideaHi. I was playing with this idea of having a simple 64x48 bytes buffer, 1 byte per pixel, then a renderer which would take that buffer and render it…

    ... from linear buffer to screen would be trivial:

    [CODE] ... more complex:

    [CODE] ...
    rr l ; divide ... big pixels, using a linear buffer to store attributes, ... -the-fly from this linear buffer and modifies attributes ...
    Einar Saukas Einar Saukas December 2014 Development
  • 64x48 monochrome big pixels display ideaHi. I was playing with this idea of having a simple 64x48 bytes buffer, 1 byte per pixel, then a renderer which would take that buffer and render it…

    ... ;806256]char's code is as follows:
    [CODE]pop de
    inc l[/CODE]10+7+4+7+4 ... routine to copy pixels from linear buffer to screen took 50 ...
    Einar Saukas Einar Saukas December 2014 Development
  • What is the Sinclair ZX Spectrum Vega and what does it mean?Just stumbled upon this Indiegogo page following a tweet from SpeccyNews [url]https://www.indiegogo.com/projects/sinclair-zx-spectrum-vega[/url] it…

    ... optimal LZ77 data compression in linear time. AFAIK this solution didn ... to publish the full source code and make this knowledge ... to compile the provided source code and finally realize it ... this when an accurate source code goes against their interests?
    Einar Saukas Einar Saukas December 2014 Sinclair Miscellaneous
  • Vertical XOR filler.. anyone?Hi, I was just wondering whether a vertical filler using XOR has ever been used on Speccy demos/games and if yes when for the first time? Just tryin…

    ... 48K demos.
    The actual code looks like this:

    linear screen buffer (Y in L ...
    Alone Coder Alone Coder May 2015 Development
  • Vertical XOR filler.. anyone?Hi, I was just wondering whether a vertical filler using XOR has ever been used on Speccy demos/games and if yes when for the first time? Just tryin…

    ... 48K demos.
    The actual code looks like this:

    linear screen buffer (Y in L ...
    mr.spiv mr.spiv May 2015 Development
  • My first Greasemonkey script, up for testingI've decided to play with Greasemonkey and javascript today. (Greasemonkey is an add-on under Firefox)<br><br>Here's my first script written purely f…

    ... /*forestgreen*/ !important;
    background-image: linear-gradient(110deg, black 60%, red ... fixes (use pre instead of code) */
    code, pre {
    color: darkgreen ...
    Timmy Timmy June 2015 Chit chat
  • My first Greasemonkey script, up for testingI've decided to play with Greasemonkey and javascript today. (Greasemonkey is an add-on under Firefox)<br><br>Here's my first script written purely f…

    ... -static-top {
    background-image: linear-gradient(110deg, black, red, yellow ... fixes (use pre instead of code) */
    code, pre {
    color: darkgreen ...
    Arjun Arjun June 2015 Chit chat
  • My first Greasemonkey script, up for testingI've decided to play with Greasemonkey and javascript today. (Greasemonkey is an add-on under Firefox)<br><br>Here's my first script written purely f…

    ... -static-top {
    background-image: linear-gradient(110deg, black, red, yellow ... fixes (use pre instead of code) */
    code, pre {
    color: darkgreen ...
    Arjun Arjun June 2015 Chit chat
  • Could ELITE's wireframe graphics be improvedWas watching this video last night comparing the BBC and Spectrum version of Elite: https://www.youtube.com/watch?v=Ov4OAteeGWs It seems that the…

    ... hand coded in 6502 machine code for the bbc 1-bit ... they setup a 1-bit linear screen buffer, converted the algorithms ...
    GReW GReW August 2015 Games
  • I am currently playing......Don't know if there's been a thread like this, but I can't find one.... Having seen all the different threads asking people if they've played such a…

    ... 's story heavy and quite linear, but the gameplay is reasonably ... . Quantum Break came with a code to download this with the ...
    Bermondsey Bob Bermondsey Bob April 2016 Chit chat
<1…11121314151617…34>

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