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debugger

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Everything posted by debugger

  1. debugger
    Amazing! Mine will arrive soon :-) 7800 there we go!
  2. debugger
    Hah, got mine already but I have to say it looks simply gorgeous in that way. I may order it too.
  3. debugger
    That would also be nice.
  4. debugger
    One of each three, to be more precise...
  5. debugger
    This is sad. I went to his site from time to time. Just writing to let you know I purchased one book. Thank you very much.
  6. debugger
    Oh, ok. Good to know Thankyou.
  7. debugger
    Are the base rgb values documented?
  8. debugger
    Thankyou for your help Are the bright values 0000 or 1111 only? Or are intermediate values allowed?
  9. debugger
    Thanks, i'll try to disassemble it
  10. debugger
    What i want to say, is: does the 7800 have a fixed color palette? Like "color 1 is black, color 2 is red" etc, a color number that's later retrieved by the vdp from palette ram to paint the color in the tv (i bet that's not the way, because there isn't any place in the memory map) or a 8 bit value composed with a few bits for the color, like (for example!) 3 bits for red, 3 for green and 2 for blue? Any help would be very appreciated!
  11. debugger
    I see in the Maria register list this info: 0020 - Background color 0021 - Palette 0 color 1 0022 - Palette 0 color 2 0023 - Palette 0 color 3 0025 - Palette 1 color 1 0026 - Palette 1 color 2 0027 - Palette 1 color 3 (etc) What values do i have to store in those registers? I mean, what color format does the 7800 use? If i want a blue or a red, how do i specify it? Thanks
  12. debugger
    I'm enlisted now too
  13. debugger
    MorphOS would be interesting
  14. debugger
    Hello Bruce, thanks a lot for this, i'll take a look inmediatmently
  15. debugger
    Thanks a lot Mitch It does have two different bytes with the one i had Weird! The source code i have is the one here at atari age. I'll look into the pdf at the web you pointed me
  16. debugger
    Sorry for always asking about programming stuff guys I'm reading the 7800 bios disassembly and i'm surprised about this: STA LF112 LF112 label is not defined in any place of the code or am i becoming crazy of reading too much 6502 asm lately? Did anyone tried to assemble again this file?
  17. debugger
    Funny I was asking because i have read somewhere that a pal game on a ntsc console can display a rolling image because being out of sync.
  18. debugger
    Hi, i'm curious about those PAL<->NTSC conversions, what are the differences? Doesn't the video chips handle all the TV stuff, or an Atari 7800 game needs to access at "low level" to the TV? Or maybe it's just to change a byte somewhere to init the video hardware in a different way?
  19. debugger
    Oh, Bruce thanks I was forgetting the reset vector, now all looks better Thanks a lot to all of you guys
  20. debugger
    Mmm are you sure? As far as i know, 7800 games have a checksum check, like some other consoles, to ensure the game is licensed, but nothing more
  21. debugger
    Hello guys I have another question to you. After downloading some Atari 7800 games i noticed something that i don't understand. First bytes of the roms (raw .bin dumps, or after the 128 bytes of the A78 header) there are bytes that can't be 6502 code. For example, Xenophobe NTSC contains a lot of AA bytes, Asteroids NTSC a repeating pattern 03 FC 00, or Ace of Aces, that even contains a lot of ascii code! What i'm missing here? I tought the game code started in the first byte of the rom! Thaaaaanks a lot for your help
  22. debugger
    Oh, by the way, what gold sticker?
  23. debugger
    It's good to know, i'll have to put in different place pal and ntsc games so i don't mix them.... Thanks
  24. debugger
    So i can't difference between an unopened PAL and unopened NTSC game? Wops
  25. debugger
    Hi, i'm just curious about the differences between the PAL and the NTSC releases of the Atari 7800 games. There's any difference in manuals, boxes, and cartridge labels?
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