Atari 7800 Programming

722 topics in this forum

1. Atari 7800XM and the Yamaha YM2151 sound chip 1 2

   By JonnyBritish, February 21, 2011
   • 48 replies
   • 14.1k views
   • 
   • philipj
   • September 4, 2019

2. Animated chars with characterset from memory

   By mksmith, August 29, 2019   

   • 7800basic
   • assembly
   • 12 replies
   • 1.2k views
   • 
   • Synthpopalooza
   • September 1, 2019

3. Other sound chips besides POKEY ... cheaper alternatives?

   By Synthpopalooza, August 28, 2019
   • 21 replies
   • 1.3k views
   • 
   • RevEng
   • August 29, 2019

4. Inconsistent Graphics

   By Karl G, August 16, 2019   

   • 7800 basic
   • 8 replies
   • 801 views
   • 
   • mksmith
   • August 20, 2019

5. Memory Map and accessing offset > 255

   By mksmith, July 25, 2019   

   • 7800basic
   • 9 replies
   • 584 views
   • 
   • SmittyB
   • July 27, 2019

6. 7800 BEAD header

   By RevEng, July 15, 2019
   • 18 replies
   • 1.3k views
   • 
   • TailChao
   • July 20, 2019

7. Character flipping for extra colors - a primer

   By Synthpopalooza, June 21, 2019
   • 23 replies
   • 1.9k views
   • 
   • Synthpopalooza
   • July 18, 2019

8. Rider of the Night (REVISED) 1 2 3

   By frankodragon, February 14, 2016   

   • knight rider clone
   • 51 replies
   • 9.8k views
   • 
   • frankodragon
   • July 11, 2019

9. Checking score for extra lives

   By mksmith, June 26, 2019   

   • 7800basic
   • 4 replies
   • 548 views
   • 
   • RevEng
   • June 27, 2019

10. 320C/320D may actually have uses? 1 2

    By Flipper, March 29, 2006
    • 30 replies
    • 9.1k views
    • 
    • Synthpopalooza
    • June 18, 2019

11. Looking for ideas about the player's shot in Defender...

    By PacManPlus, May 31, 2019
    • 9 replies
    • 1.1k views
    • 
    • PacManPlus
    • June 5, 2019

12. Is 320B color flaw present in 320C?

    By R_Leo_1, May 27, 2019   

    • 7800
    • 7 replies
    • 1.1k views
    • 
    • R_Leo_1
    • May 30, 2019

13. Using Indirect Variable Arrays

    By mksmith, May 22, 2019
    • 8 replies
    • 812 views
    • 
    • mksmith
    • May 25, 2019

14. Tiles and fonts in different gfx blocks

    By mksmith, May 20, 2019
    • 4 replies
    • 664 views
    • 
    • mksmith
    • May 21, 2019

15. Can we have tiles of different height?

    By asdronin, May 13, 2019
    • 12 replies
    • 910 views
    • 
    • asdronin
    • May 17, 2019

16. Running out of render time?

    By mksmith, May 14, 2019
    • 8 replies
    • 841 views
    • 
    • mksmith
    • May 16, 2019

17. Question about Basic "if"

    By asdronin, May 11, 2019
    • 6 replies
    • 658 views
    • 
    • asdronin
    • May 13, 2019

18. 160B Alternative 12 colors?

    By asdronin, May 12, 2019
    • 2 replies
    • 713 views
    • 
    • asdronin
    • May 12, 2019

19. Plotmap has a limit plotting out of screen?

    By asdronin, May 11, 2019
    • 5 replies
    • 588 views
    • 
    • asdronin
    • May 12, 2019

20. Issue using Tiled map and palette not found

    By asdronin, May 10, 2019
    • 5 replies
    • 606 views
    • 
    • asdronin
    • May 11, 2019

21. Plotmap tiles different widths?

    By asdronin, May 10, 2019
    • 2 replies
    • 473 views
    • 
    • asdronin
    • May 11, 2019

22. Can we retrieve the sprite color palette?

    By asdronin, May 10, 2019
    • 2 replies
    • 475 views
    • 
    • asdronin
    • May 11, 2019

23. Best practice with moving background made of tiles

    By asdronin, May 8, 2019   

    • tilemap
    • 2 replies
    • 518 views
    • 
    • asdronin
    • May 9, 2019

24. Interactive color picker?

    By asdronin, May 8, 2019
    • 0 replies
    • 499 views
    • 
    • asdronin
    • May 8, 2019

25. 7800Basic - Strange contradictory results evaluating variables/arrays?

    By Revontuli, April 17, 2019
    • 2 replies
    • 537 views
    • 
    • Revontuli
    • April 18, 2019

26. 7800basic strange variable behaviour

    By Dalta, March 11, 2019   

    • 7800basic
    • 8 replies
    • 1.2k views
    • 
    • Dalta
    • April 14, 2019

27. Toki with C64 Tiles

    By sgrddy, March 4, 2019
    • 6 replies
    • 1.4k views
    • 
    • Jinks
    • March 23, 2019

28. MARIA compliant game graphics/art?

    By Fragmare, March 1, 2019
    • 12 replies
    • 1.1k views
    • 
    • SmittyB
    • March 7, 2019

29. TIA Music on Atari 7800, (Stella's Stocking/ Mappy)

    By R_Leo_1, February 28, 2019   

    • music
    • 7800
    • (and 1 more)

      Tagged with:

      • music
      • 7800
      • tia
    • 3 replies
    • 768 views
    • 
    • R_Leo_1
    • February 28, 2019

30. Peekchar 7800basic help

    By Dalta, February 17, 2019   

    • 7800basic
    • peekchar
    • 2 replies
    • 559 views
    • 
    • Dalta
    • February 18, 2019

31. sprite data to color mapping ** updated **

    By EricBall, November 15, 2017
    • 1 reply
    • 2.2k views
    • 
    • MrFish
    • February 9, 2019

32. 7800Basic and Arrays

    By Lavalamp, October 4, 2018   

    • 7800
    • BASIC
    • (and 4 more)

      Tagged with:

      • 7800
      • BASIC
      • Array
      • variable
      • data
      • length
    • 5 replies
    • 1.2k views
    • 
    • SmittyB
    • February 4, 2019

33. Please explain content of Atari 7800 cartridge ROM

    By unebonnevie, December 28, 2017
    • 6 replies
    • 1.6k views
    • 
    • jericho_21
    • February 1, 2019

34. Best Practice DLL building screen height

    By Heaven/TQA, January 21, 2019
    • 2 replies
    • 404 views
    • 
    • Heaven/TQA
    • January 21, 2019

35. Is there any Atari 7800 Graphics tool out there?

    By R_Leo_1, October 23, 2018   

    • Atari7800
    • Graphics
    • 14 replies
    • 1.5k views
    • 
    • ColonialWarrior
    • January 20, 2019

36. JOUST lava flow project

    By Baby Blue Azure, December 19, 2018
    • 2 replies
    • 828 views
    • 
    • Dauber
    • January 20, 2019

37. Maria “crashing”?

    By Heaven/TQA, January 16, 2019
    • 11 replies
    • 679 views
    • 
    • Heaven/TQA
    • January 18, 2019

38. A quick way to check for the existence of POKEY at a specific address?

    By PacManPlus, January 14, 2019   

    • Pokey
    • 2 replies
    • 509 views
    • 
    • PacManPlus
    • January 14, 2019

39. 7800basic for Newbies: A Tutorial, Part 1 1 2

    By Atarius Maximus, September 19, 2017
    • 26 replies
    • 7.9k views
    • 
    • TwentySixHundred
    • January 10, 2019

40. 7800 Basic 1 2

    By Lavalamp, September 18, 2018   

    • 7800
    • BASIC
    • (and 1 more)

      Tagged with:

      • 7800
      • BASIC
      • Variables
    • 30 replies
    • 2.6k views
    • 
    • Dalta
    • December 17, 2018

41. 7800basic for Newbies: A Tutorial, Part 3

    By Atarius Maximus, September 22, 2017
    • 19 replies
    • 5.9k views
    • 
    • Dalta
    • December 1, 2018

42. Tool for extracting sprite graphics from a 7800 rom

    By NostAlgae37, November 2, 2018   

    • sprite
    • graphics
    • (and 2 more)

      Tagged with:

      • sprite
      • graphics
      • tool
      • 7800
    • 13 replies
    • 1.4k views
    • 
    • gambler172
    • November 24, 2018

43. Creating 7800basic compatible graphics images with Gimp

    By Atarius Maximus, June 15, 2014
    • 23 replies
    • 9.1k views
    • 
    • Trebor
    • October 26, 2018

44. JSR to RTI?

    By Propane13, September 7, 2007
    • 11 replies
    • 5.9k views
    • 
    • solo/ng
    • October 17, 2018

45. Sound FX Library

    By Lavalamp, October 8, 2018   

    • sound
    • effect
    • (and 2 more)

      Tagged with:

      • sound
      • effect
      • 7800
      • basic
    • 3 replies
    • 721 views
    • 
    • SmittyB
    • October 9, 2018

46. 7800 and CC65? How?

    By Fabrizio Caruso, September 22, 2017   

    • CC65
    • 5 replies
    • 2.1k views
    • 
    • RevEng
    • September 27, 2018

47. Porting Games by Peter J. Meyer to the 7800

    By peteym5, September 24, 2018
    • 13 replies
    • 774 views
    • 
    • peteym5
    • September 25, 2018

48. How to use tiles & Maps

    By Lavalamp, September 23, 2018   

    • 7800
    • BASIC
    • (and 3 more)

      Tagged with:

      • 7800
      • BASIC
      • Tile
      • Map
      • 7800Basic
    • 8 replies
    • 768 views
    • 
    • Lavalamp
    • September 25, 2018

49. 7800 Cartridge and 7800 Basic Issues

    By Lavalamp, September 17, 2018
    • 7 replies
    • 605 views
    • 
    • Lavalamp
    • September 20, 2018

50. NTSC & PAL carts

    By Lavalamp, September 18, 2018   

    • 7800
    • 3 replies
    • 472 views
    • 
    • Albert
    • September 18, 2018