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nosty

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Posts posted by nosty

  5. Posted

    i'll answer myself

    char that is on "screen" memory is always 0x20, so you just redefine it as you go

     

    Exactly. 0x20 or 0xA0 for fifth color

     

    I don't remember reading this, but can it handle color modes as well as B&W? Mode 14 instead of mode 15, let's say. That would be probably what most games would use... imagine a demo like the video, but with color instead of B&W.

     

    Of course TOMEK will support color modes in near future. The hi-res mode was a first try only.

  6. Posted

    Xxl how you get 256 chars on gr.0 and gr.12 or gr.13 on the same scanline(s)?

     

    As XXL wrote: this is a trick :)

     

    Imagine you use Display List like this:

     

    dl

    dta $70,$70,$70

    dta $42,a($D500)

    dta $42,a($D500)

    ...

    dta $42,a($D500)

    dta $41,a(dl)

     

    so Antic reads screen's chars from $D5xx page

     

    And you must set charset: CHBAS = $D4, so Antic reads chars definitions from 32 do 63 from $D5xx page.

     

    But real screen definition and chars definitions (for 128 or 256 chars) are stored in coprocessor internal memory.

     

    It's all. Microcolntroller on cartiridge can prepare for Antic ANY char's definition.

     

    How it works? Antic read first char from first line memory ($D500) : 32. So it reads char (no 32) definition (8 bytes) from addresses $D500..D507. Next, Antic reads second char from $D501. And it is 32 again :) So Antic reads char's definition from addresses $D500..D507 again. BUT NOW... coprocessor prepares for Antic different char definition according to screen definition in its internal RAM memory.

     

    It sounds crazy but it really works :) I tested it.

    • Like 1

  7. Posted

    Ooh - I am so excited, a proper democratic and by the sounds of it cheap upgrade.

    Re-reading atari.org it seems to also indicate the idea of games coming on a cart with this built in that would be super awesome - an invisible upgrade!

     

    Yes, this is my target. No soldering, just plug-and-play :)

     

    IMHO nice hw effort but "useless" like VBXE. I think there will be "nobody" who will write something for it.

     

    I'm writing a simple general-purpose frimeware with soft-PMG support in various Antic modes. So you don't need to learn PIC asm for use it.

    In my opinion a cartridge is the best and natural way for Atari upgrade. TOMEK-8 with PIC24 microcolntroller for Atari can be like Super-FX for SNES (http://en.wikipedia.org/wiki/Super_FX).

  8. Posted

    Seriously, please break it up into smaller lots.

    You might actually get more with smaller lots.

     

    +1.

    And smaller lots you can ship worldwide.

    I want Super Zaxxon! and SeawolfII / Gun fight and Tele-talk, and Pinhead and The Neverending Story, and... :)

  15. Posted

    Emulators (Altira and Atari800win) works good. But if you can compare fast horisontal scroll in this game on emulator+LDC and real Atari+CRT you'll see difference clearly. On real Atari road's scrolling is smooth and squares looks sharp. On emulator on LCD you can see that the squares are blurry and a scrolling looks not smooth.

     

    In practice: the level that seems very hard on emulator, is notably easier on real Atari.

  16. Posted · Edited by nosty

    Hi,

    Finally my version of Line Runner for 8-bit Atari is finished :)

    http://www.atarionli...at=1&ct=nowinki

     

    Test it on real Atari please. Emulators sux this time :P

     

    And a little surprise for Atari cartridges collectors:

    http://gr8.atari.pl/...dex.php?lang=en

     

    Original game for Android and iPhone for comparison: http://www.djinnworks.at/?p=150

    line_runner_file.xex

    • Like 9

  22. Posted

    Line Runner is a famous game for iPhone and Android:

    https://market.andro...unnerfree&hl=pl

     

    I tried to port this game with all rules, timings etc. same as in original game.

     

    This is a playable preview only: 3 small unbalanced levels designed in 30 minutes. The length of every level is 1024 chars = ~400 pts.

    I really don't think this is possible to complete all 3 levels now ;) I completed level 1 only.

     

    To do:

    - levels design,

    - music/sfx,

    - code of level's finish.

    line_runner_preview.xex

    • Like 5

  25. Posted

    Hello,

    My friend asked me for help her to sell her Hobgoblin cartridge copy.

    Hobgoblin for Atari 8-bit was published 3 years ago in quantity 70 cart copies.

    Game is new, never used, never opened, in perfect condition. It has intact GR8 stickers.

    This is the extended edition (EE) version, copy no 11 (every HG copy is numbered, exists 25 HG EE copies only).

    It looks like this:

    http://gr8.atari.pl/...emid=35&lang=en

     

    The price is 70USD. This is not an auction. First person who can offer this price is a winner. Pay with Paypal please.

    Thank you.

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