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Atari 5200 / 8-bit Programming

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

3,003 topics in this forum

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  4. Fastbasic string questions

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  5. Simply Assembly Joystick Test Program

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  6. ACTION! File Selector

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  7. Altirra Extended BASIC 1 2 3 4

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  8. I/O Pic loading in ALTIRRA

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  9. Odd issue building and running ANALOG's Bonk game

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    • 477 views

  10. Can you 'reserve a part of memory' in Turbobasic ?

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    • 3 replies
    • 292 views

  11. 2023 BASIC 10Liner contest is on! 1 2

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  13. DASM issue

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  14. AdvSkel65/Atari too big! Help!

    By Harry Potter,
    • 20 replies
    • 667 views

  15. book:How to program your atari in 6502 machinelanguage (HOFACKER)

    By mutil8,
    • 13 replies
    • 574 views

  16. cc65 compiler error at "offsetof" on AtariXL target of AdvSkel65 only?

    By Harry Potter,
    • 9 replies
    • 277 views

  17. Mapping screen coordinates to screen buffer.

    By kensu,
    • 5 replies
    • 402 views

  18. 6502 cheat sheet

    By bocianu,
    • 24 replies
    • 1.5k views

  19. FastBasic Pre-processor (Windows)

    By snicklin,
    • 24 replies
    • 1.1k views

  20. DLI Action! problem.

    By kensu,   
    • 22 replies
    • 663 views

  21. VBXE Another Blitter Example

    By Stephen,
    • 15 replies
    • 777 views

  22. Pulsing characters.

    By kensu,
    • 5 replies
    • 552 views

  23. Altirra 4.10 debug help online

    By lbaeza,
    • 0 replies
    • 253 views

  24. WUDSN + Mad Pascal - quick hack increasing usability.

    By willyvmm,   
    • 1 reply
    • 603 views

  25. How can i correct check keyboard pressing in assembly?

    By Ati,
    • 10 replies
    • 647 views

  26. Mad Pascal on linux - partially broken. Path normalization break compilation if capital letters in path.

    By willyvmm,   
    • 0 replies
    • 213 views

  27. GTIA mode 10 (and 11)

    By mutil8,
    • 21 replies
    • 1.3k views

  28. The rat is coming ... TACOBOT port for Atari 8 bit

    By Mariano DM,   
    • 12 replies
    • 1.2k views

  29. VBXE - black belt title screen test

    By Yaron Nir,
    • 3 replies
    • 395 views

  30. Atari 5200 vertical scaling

    By Ecernosoft,
    • 0 replies
    • 351 views

  31. Pointer multiplication at start of block.

    By kensu,
    • 6 replies
    • 336 views

  32. Compute! ATARI Graphics Vol.1 and 2 - is there an .ATR floating around containing all the programs?

    By abbotkinneydude,
    • 4 replies
    • 370 views

  33. Four tracks (Basic music software)

    By pfeuh,
    • 4 replies
    • 422 views

  34. Conner&Anthony (Atari 8bit only) beta version 8.0 out now! (Third song done)

    By Ecernosoft,   
    • 20 replies
    • 1.6k views

  35. how random is RND in Basic and Turbo Basic? (seems to be different) 1 2

    By Marius,
    • 48 replies
    • 1.7k views

  36. Is there detailed file system documentation available for the standard and common custom DOSes?

    By Zolaerla,
    • 2 replies
    • 361 views

  37. cc65/Atari8: resetting sys on exit?

    By Harry Potter,
    • 13 replies
    • 463 views

  38. Closed Captioning.

    By kensu,
    • 5 replies
    • 361 views

  39. Advent Of Code 2022 - Atari FastBasic

    By fenrock,
    • 5 replies
    • 532 views

  40. Vertical PM movement in Action!

    By kensu,
    • 9 replies
    • 360 views

  41. Playfield player collisions.

    By kensu,
    • 1 reply
    • 358 views

  42. Accidentally created a very strange effect in Action!.

    By kensu,
    • 5 replies
    • 386 views

  43. VBXE example/tutorial - Using the blitter 1 2

    By Thelen,   
    • 29 replies
    • 1.2k views

  44. Action! elementals: Character set redefinition

    By Gury,
    • 5 replies
    • 1.4k views

  45. Is there a BASIC <> Python reference guide (like a PDF)

    By Marius,
    • 19 replies
    • 694 views

  46. Forem XEP Multi Node A Work In Progress (Originally Restored By Amis)

    By rcamp48,
    • 0 replies
    • 200 views

  47. Quick question about using VSCROL (how to get an extra row of text without a badline)

    By Bryan,
    • 10 replies
    • 552 views

  48. Multi User Forem XE Professional Is Getting Closer and Closer

    By rcamp48,   
    • 1 reply
    • 225 views

  49. VBXE tutorials - summary of all VBXE topics

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    • 9 replies
    • 796 views

  50. VBXE - a step by step code example in MADs assembly

    By Yaron Nir,
    • 4 replies
    • 409 views

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