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Atari 5200 / 8-bit Programming

Programming information for the Atari 5200 console and Atari 8-bit computers.

3,006 topics in this forum

  1. New sorting algorithm?

    By Preppie,
    • 7 replies
    • 717 views

  2. cc65/Atari target: limited 32k MegaCart cartridge config

    By Harry Potter,
    • 0 replies
    • 251 views

  3. SIO Problems with Tygrys 1050 and other Happy clones...

    By Zolaerla,
    • 2 replies
    • 257 views

  4. cc65/AtaSimpleIO: clrscr() replacement?

    By Harry Potter,
    • 4 replies
    • 312 views

  5. AdvSkelVic65/Atari 32k cart port not working!

    By Harry Potter,
    • 2 replies
    • 386 views

  6. cc65/Atari lib.: sys check module?

    By Harry Potter,
    • 5 replies
    • 380 views

  7. antic mode 4 char editor needed

    By mutil8,
    • 12 replies
    • 1.2k views

  8. MAC/65 & BUG/65 (disk version) on Sparta DOS 3.2g - notes so far

    By Darken99,   
    • 4 replies
    • 214 views

  9. Can RANDOM be 'reseeded'?

    By jindroush,
    • 5 replies
    • 308 views

  10. cc65: --all-cdecl produces better results?

    By Harry Potter,
    • 0 replies
    • 191 views

  11. Best method to detect an ATARI 130XE computer

    By ndary,
    • 4 replies
    • 380 views

  12. AtariSIO Tools (ataricom, adir, diratr) Binary Builds

    By JAC!,
    • 7 replies
    • 508 views

  13. cc65/AtariXL target: getting rid of sys check chunk?

    By Harry Potter,
    • 1 reply
    • 152 views

  14. Large text modes in FastBasic 1 2

    By Mark Simonson,
    • 34 replies
    • 1.3k views

  15. Action! - disable BASIC

    By pedromagician,
    • 5 replies
    • 367 views

  16. Hunt a bug in 5200 game source code - no controls 1 2

    By baktra,
    • 25 replies
    • 972 views

  17. FastBasic Debugger Extension for VSCode

    By The Car,
    • 5 replies
    • 625 views

  18. Cartridge formats with SRAM or equivalent? (for saving game config, high scores, etc.)

    By Bobo Cujo,
    • 19 replies
    • 608 views

  19. CC65/Atari .xex format for AdvSkelVic65?

    By Harry Potter,
    • 5 replies
    • 212 views

  20. Copy Protection 1 2

    By AGiambra,   
    • 37 replies
    • 2.1k views

  21. BLOAD + Altirra BASIC 1 2

    By Ricky Spanish,
    • 26 replies
    • 813 views

  22. "Safe" page zero locations to reuse

    By woj,
    • 5 replies
    • 719 views

  23. WAM animations in atari by David Coombs

    By Mariano DM,
    • 1 reply
    • 413 views

  24. Meta language 1 2 3 4 6

    By Kaj de Vos,   
    • 127 replies
    • 8.3k views

  25. MAC/65 disk version on Sparta DOS - warmstart entry point?

    By Darken99,
    • 6 replies
    • 375 views

  26. assembly atari 800xl/xe

    By atari1byte,
    • 15 replies
    • 943 views

  27. OSS-D-Day part 1-BASIC XE V4.2-cart&source now in PD 1 2

    By luckybuck,   
    • 27 replies
    • 3.9k views

  28. TBXL graphical artifacts when ending program

    By Ricky Spanish,
    • 7 replies
    • 421 views

  29. Creating new Atari8 disk images?

    By Harry Potter,
    • 6 replies
    • 513 views

  30. A good OS to run MAC/65 and EXDDT (DOS 2.5 works, but...)

    By Darken99,
    • 14 replies
    • 730 views

  31. VBXE - PC Based Graphics Tool

    By Stephen,
    • 15 replies
    • 750 views

  32. Action! How to call another Action! program on disk from Action! 1 2

    By rsh,
    • 26 replies
    • 770 views

  33. Disabling basic with cc65

    By clth,
    • 10 replies
    • 549 views

  34. Timing code within a frame

    By Stephen,
    • 5 replies
    • 521 views

  35. mode Antic 4 + vertical scrolling cause DLIs to move with the scrolling

    By JimTK,
    • 9 replies
    • 489 views

  36. Asteroids Proto

    By Tempest,
    • 6 replies
    • 431 views

  37. My VISION for Automating 4 Player-Sprites REALIZED 1 2

    By Astra2001,
    • 32 replies
    • 1.9k views

  38. BUG65 crashes Altirra 4.10 so no MAC65 for me :( Any suggestions appreciated

    By Darken99,
    • 17 replies
    • 438 views

  39. TBXL PAUSE command 1 2

    By Ricky Spanish,
    • 26 replies
    • 980 views

  40. ACTION! interesting "feature" 1 2

    By TGB1718,
    • 28 replies
    • 1.2k views

  41. Player/Missile overlay "impossible" in highres mode 1 2

    By patjomki,   
    • 27 replies
    • 1.5k views

  42. Turbo Basic XL machine language routines. 1 2

    By Ricky Spanish,
    • 35 replies
    • 1.2k views

  43. Atari 800 and 1200XL memory issues?

    By swolfsdxb,
    • 2 replies
    • 256 views

  44. Help needed optimizing Atari8/cc65 programs! 1 2

    By Harry Potter,
    • 28 replies
    • 1.3k views

  45. Eclipse/MADS editor question

    By TGB1718,
    • 7 replies
    • 431 views

  46. Super Pac-Man (5200/800) Discussion

    By Tempest,
    • 8 replies
    • 511 views

  47. OS Programming the SIO 1 2

    By reifsnyderb,
    • 32 replies
    • 1k views

  48. How hard could it be to do homebrew ports of Cut The Rope or Angry Birds???

    By BIGHMW,
    • 22 replies
    • 1.1k views

  49. Basic Rev C on a chip

    By V-Cool,
    • 4 replies
    • 509 views

  50. cc65/Atari Users: AtaDisk65 and AtaSimpleIO

    By Harry Potter,
    • 0 replies
    • 155 views

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