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<1…16171819202122…34>
  • 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 …

    The difference is that ZX7 is a general pourpose packer and Laser Compact is a specific pourpose packer. So if you want to compress only screens (like Laser Compact) you may apply some filters before compression (and after decompression).

    The ...
    antoniovillena antoniovillena January 2013 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 …

    ... (while still showing the loading screen). In this case, you should ... data". I will improve ZX7 compressor later so it will report ...
    Einar Saukas Einar Saukas January 2013 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 …

    ... .cgi?id=0013142"]Lerm Code Compressor 1[/URL] to compress data ... /WAV ultraloads, RCS filter for screen and other compressors support (like ...
    antoniovillena antoniovillena January 2013 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 …

    ... .cgi?id=0013142"]Lerm Code Compressor 1[/URL] to compress data ... /Utils/Html/FileCompressor.php"]File Compressor[/URL] for data blocks and ... =0021446"]Laser Compact[/URL] for SCREEN$ blocks.
    Alessandro Grussu Alessandro Grussu January 2013 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 …

    ... .cgi?id=0013142"]Lerm Code Compressor 1[/URL] to compress data ... be fair):
    [CODE]
    screen file| size |LermCC|ZX7+decompressor ...
    Einar Saukas Einar Saukas January 2013 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 …

    ... ). The first block is the screen (from $4000 with $1b00) and ... exomizer and exoopt (or other compressor in the required case).
    screen during the most part of ...
    antoniovillena antoniovillena January 2013 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 …

    ... 209 bytes
    5. Loading screen turbodata (6912 bytes)
    6 ... br /> 7. Menu screen header
    8. Menu screen data (6912 bytes ... code to interface with ZX7 compressor?
    [CODE]
    1000 POKE ... at 40000 with target the screen (16384) you do something ...
    antoniovillena antoniovillena January 2013 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 …

    ... Compact 5.2 for the screen. I was at the time ... the fact that no one compressor is best for all, and ...
    jamorski jamorski January 2013 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 …

    ... compressed Apulija-13's loading screen to 3714 bytes against the ... code included) obtained with File Compressor 3.5.

    EDIT ...
    Alessandro Grussu Alessandro Grussu January 2013 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 …

    ... decompressor relocatable, and the compressor call is patched to the ... , that includes the RCS to screen conversion.

    ... decompressor with RCS conversion to screen routine.
    Load ... compressed (original rcs) RCS screen at decompressor address+135.< ...
    FrankT FrankT January 2013 Brand new software
  • RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…

    ... " pixels first):

    [CODE]screen file| size | ZX7 |RCS+ZX7 ... a custom bit-based statistical compressor to take advantage of bit ...
    Einar Saukas Einar Saukas January 2013 Development
  • RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…

    ... each "third" of the screen, copy the screen content to this buffer ... copy back from buffer to screen while converting it. Repeat ... for each "third" of the screen).

    You won ... and release a standalone RCS+compressor with a decompressor+RCS inverted ...
    antoniovillena antoniovillena January 2013 Development
  • RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…

    ... re-ordering to get the screen data in sequential order. Then ... Coding and a smart ("optimal") compressor, it may work.

    Einar Saukas Einar Saukas January 2013 Development
  • Squishing code up nice and small then unsquashing it in assemblyI refer of course to data compression. I've done a search and there are lots of good compressors, but I can't seem to find one that works in assembl…

    ... I'm after) but the compressor works in windows.

    Is there a compressor & decompressor that are both ... 30KB and usually they occupy screen memory to leave as much ...
    catmeows catmeows September 2013 Development
  • Squishing code up nice and small then unsquashing it in assemblyI refer of course to data compression. I've done a search and there are lots of good compressors, but I can't seem to find one that works in assembl…

    ... into a game designer for screen maps so it needs to ... 'll happily use an external compressor - I'm fairly new to ...
    R-Tape R-Tape September 2013 Development
  • 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…

    ... loader in REM, a loading screen (couldn't get instaload to ... of zeros in both the screen and the game, there. The ... you were to use a compressor.

    Shame that you ...
    stephenw32768 stephenw32768 November 2013 Development
  • 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…

    ... of zeros in both the screen and the game, there. The ... you were to use a compressor.[/QUOTE]
    May I suggest ...
    Alessandro Grussu Alessandro Grussu November 2013 Development
  • 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…

    ... of zeros in both the screen and the game, there. The ... you were to use a compressor.

    Shame that you ...
    spud spud November 2013 Development
  • Help with File Compressor by Mladen PopovicHi, I'm trying to compress BombJack (MCM) and transfer it to a +3 disk (Yes I own the original game :) ). I'm unsure about the addresses to enter in…

    ... to do Kokotoni with File Compressor at that time, I ... snapshot with a black screen and a short pause ... depack routine is in screen ram though and even ... snap2tap to blank the screen during depacking I still ... see the depacking code screen garbage over the loading ...
    Speccy_James Speccy_James January 2014 Development
  • Beautiful codeSome people see beauty or something sublime in maths formulas and equations, can anyone suggest examples of beautiful or sublime programming?

    ... ]

    And also the compressor in C, but not needed ... /> Yes I've used the screen as you say, but I ...
    antoniovillena antoniovillena August 2014 Development
  • Beautiful codeSome people see beauty or something sublime in maths formulas and equations, can anyone suggest examples of beautiful or sublime programming?

    ... important than an initial screen. But if you have ... the room for a screen, use it.

    screen, but the displayroutine displays ... -600 bytes because the screen data and the last ... bytes of decompressor). The compressor that I use is ...
    antoniovillena antoniovillena August 2014 Development
  • mkloader - compressed loading screen makerI made a new tool, available on my github at: [url="https://github.com/jarikomppa/speccy"]https://github.com/jarikomppa/speccy[/url] The tool gene…

    ... loading screen thingy, except for apps)
    - lzfpack / lzfunpack - lzf compressor and ...
    Sol_HSA Sol_HSA December 2015 Announcements
  • Mackarel - one exe to turn .ihx + .scr to a .tapSorry if this feels like spamming so soon after mkloader, but I'm honestly surprised how fast I managed to put this together. Introducking Mackare…

    ... , yeah!... Love that blocky loading screen font!!... Looking forward to testing ... kind of licencing the Exomizer compressor uses?... I hear Exomizer is ...
    kgmcneil kgmcneil January 2016 Announcements
  • Compression comparisonsI did some comparisons of different compression methods. To make this relevant to zx spectrum, I first gathered a corpus of relevant data: 6660 .TAP …

    ... you could give the loading screen an extra duality in the ... -is or inverted? Maybe a compressor could be designed to prefer ...
    Hikaru Hikaru January 2016 Development
  • RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…

    ... because looks like this unfinished compressor of mine does some things ... a standalone self-extracting compressed screen with it's own autogenerated ...
    Lethargeek Lethargeek January 2016 Development
  • LgK image compressorOk people, i decided to make it proper thread since i've finally got something tested & useful for everyone. Here is my "chunky" ZX image compressor …

    Now how it works. No screen reordering, goes through standard ... data is unpredictable for each screen. No RLE is used ... (de)pack any rectangular screen or off-screen area

    ... later into a general image compressor (including in-game graphics - ...
    Lethargeek Lethargeek January 2016 Development
  • Are turbo loaders worth it?I found turbo loaders fascinating and I've spent quite some time disassembling and trying different types, and they work great when I load the games …

    ... it gives with the optimized screen i posted a link to ... to make a standalone screen optimizer for my compressor, but i want ...
    Lethargeek Lethargeek March 2016 Development
  • Are turbo loaders worth it?I found turbo loaders fascinating and I've spent quite some time disassembling and trying different types, and they work great when I load the games …

    ... it gives with the optimized screen i posted a link to ... to make a standalone screen optimizer for my compressor, but i want ...
    reidrac reidrac March 2016 Development
<1…16171819202122…34>

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