Atari 7800 Programming

697 topics in this forum

1. Supporting Numbers > 255 and Fixed Numbers with greater precision

   By M12, August 18, 2015   

   • fixed numbers
   • precision
   • (and 4 more)

     Tagged with:

     • fixed numbers
     • precision
     • multiplication
     • division
     • large numbers
     • trigonometry
   • 9 replies
   • 1.2k views
   • 
   • CPUWIZ
   • August 28, 2015

2. Drawing without Sprites in 7800basic (line drawing function)

   By M12, August 18, 2015
   • 7 replies
   • 1.6k views
   • 
   • Mord
   • August 27, 2015

3. Playsfx Off? 7800 Basic

   By SIO2, July 29, 2015
   • 2 replies
   • 714 views
   • 
   • SIO2
   • July 29, 2015

4. Coneay's Game of Life

   By gambler172, February 28, 2015
   • 8 replies
   • 1.5k views
   • 
   • danwinslow
   • July 23, 2015

5. Assembling .a, .S files; .bas files; Fixed point; Functions; Questions?

   By M12, June 26, 2015   

   • compiling
   • interpreting
   • (and 3 more)

     Tagged with:

     • compiling
     • interpreting
     • assembling
     • fixed point
     • functions
   • 14 replies
   • 1.5k views
   • 
   • M12
   • July 12, 2015

6. Boom!

   By Atarius Maximus, May 26, 2015   

   • A 7800basic game
   • 14 replies
   • 6.1k views
   • 
   • Defender_2600
   • May 31, 2015

7. MESS 0.160 out... update to the 7800 driver

   By RevEng, March 27, 2015
   • 7 replies
   • 2.2k views
   • 
   • DrVenkman
   • May 24, 2015

8. new self-serve Atarivox High Score Area

   By RevEng, April 26, 2015
   • 0 replies
   • 1.1k views
   • 
   • RevEng
   • April 26, 2015

9. 7800Basic Horizontal Scrolling

   By Mord, March 7, 2015   

   • 7800basic
   • scrolling
   • 18 replies
   • 3k views
   • 
   • Mord
   • April 22, 2015

10. Question: 7800 memory map in 2600 mode

    By alex_79, March 16, 2015   

    • DevOS
    • ramcart
    • (and 1 more)

      Tagged with:

      • DevOS
      • ramcart
      • 7800 memory map
    • 6 replies
    • 2.3k views
    • 
    • alex_79
    • March 17, 2015

11. Who has working source code for accessing the SaveKey on the 7800?

    By CPUWIZ, January 2, 2014
    • 5 replies
    • 1.5k views
    • 
    • RevEng
    • March 6, 2015

12. Debounce and DevOs .2 question

    By SIO2, March 3, 2015
    • 5 replies
    • 981 views
    • 
    • RevEng
    • March 5, 2015

13. DevOS RAM Cart Transfer Question

    By CannibalCat, February 10, 2014
    • 19 replies
    • 2.5k views
    • 
    • SIO2
    • February 24, 2015

14. Let's get this party started

    By Retro Lord, February 15, 2015
    • 8 replies
    • 1.4k views
    • 
    • frankodragon
    • February 21, 2015

15. Kid Grid play mechanics

    By NIKON, February 2, 2015
    • 2 replies
    • 1k views
    • 
    • NIKON
    • February 4, 2015

16. 2600 to 7800? newbie question (sorry)

    By xucaen, January 30, 2015
    • 3 replies
    • 946 views
    • 
    • alex_79
    • February 1, 2015

17. Legal Question

    By NIKON, January 25, 2015
    • 5 replies
    • 1.3k views
    • 
    • NIKON
    • January 27, 2015

18. Making the leap

    By Retro Lord, January 21, 2015
    • 7 replies
    • 1.2k views
    • 
    • Retro Lord
    • January 23, 2015

19. assemblers for 7800

    By ~llama, September 10, 2005
    • 8 replies
    • 5.5k views
    • 
    • peteym5
    • January 17, 2015

20. Counter Problem

    By frankodragon, January 9, 2015   

    • 7800Basic
    • 5 replies
    • 1.3k views
    • 
    • frankodragon
    • January 12, 2015

21. Question for you guys about a game I'm working on :)

    By PacManPlus, January 7, 2015
    • 5 replies
    • 1.2k views
    • 
    • gambler172
    • January 8, 2015

22. 78hdr.exe not compatible with windows 7 64?

    By xucaen, January 1, 2015
    • 8 replies
    • 1.1k views
    • 
    • RevEng
    • January 1, 2015

23. Possible for the 7800?

    By NIKON, November 26, 2014
    • 3 replies
    • 1.3k views
    • 
    • Defender_2600
    • January 1, 2015

24. Q: making graphics for the 7800

    By xucaen, January 1, 2015
    • 1 reply
    • 828 views
    • 
    • xucaen
    • January 1, 2015

25. Bomb Man 7800 (messing around)

    By Loktar, October 13, 2014
    • 11 replies
    • 2.8k views
    • 
    • gambler172
    • December 30, 2014

26. animation problem

    By gambler172, December 21, 2014
    • 2 replies
    • 1.4k views
    • 
    • gambler172
    • December 21, 2014

27. 7800 Controller Based Select and Reset (and a joystick test)

    By RevEng, December 17, 2014
    • 3 replies
    • 1.3k views
    • 
    • CPUWIZ
    • December 19, 2014

28. Cubicle Chaos

    By frankodragon, December 4, 2014   

    • 7800Basic
    • 9 replies
    • 2.5k views
    • 
    • frankodragon
    • December 7, 2014

29. Using 7800 graphic converter

    By DracIsBack, October 13, 2005
    • 23 replies
    • 7.7k views
    • 
    • TXG/MNX
    • November 20, 2014

30. Some "Versus" Questions

    By Cybearg, October 27, 2014
    • 8 replies
    • 1.2k views
    • 
    • EricBall
    • October 28, 2014

31. When exactly does the DLL / DL get read and processed?

    By PacManPlus, October 5, 2014
    • 18 replies
    • 1.6k views
    • 
    • PacManPlus
    • October 27, 2014

32. examples needed

    By TXG/MNX, October 16, 2014
    • 2 replies
    • 822 views
    • 
    • TXG/MNX
    • October 23, 2014

33. MESS 0.155 out... more updates to the 7800 driver

    By RevEng, October 15, 2014
    • 1 reply
    • 1.2k views
    • 
    • Dan Iacovelli
    • October 16, 2014

34. Programmers. Want an autograph cartridge?

    By neotokeo2001, August 9, 2014
    • 9 replies
    • 1.4k views
    • 
    • Jinks
    • September 28, 2014

35. "Rotation" question

    By cambertian, September 24, 2014
    • 2 replies
    • 1.1k views
    • 
    • EricBall
    • September 25, 2014

36. i need some music for a 7800 game

    By gambler172, September 13, 2014
    • 4 replies
    • 927 views
    • 
    • gambler172
    • September 22, 2014

37. first steps in 7800basic

    By TXG/MNX, September 15, 2014
    • 13 replies
    • 1.3k views
    • 
    • Trebor
    • September 16, 2014

38. 7800basic and the 2600 Keyboard Controller

    By MAC-42, August 28, 2014
    • 3 replies
    • 882 views
    • 
    • MAC-42
    • August 28, 2014

39. Atari 7800 (and 2600) joystick port question 1 2

    By Moonbeam, August 16, 2014
    • 27 replies
    • 2.7k views
    • 
    • Moonbeam
    • August 28, 2014

40. What's the state of C development for the 7800?

    By Gemintronic, December 16, 2013
    • 11 replies
    • 2k views
    • 
    • Cybearg
    • August 7, 2014

41. Enemy movement and placement after "destroying"

    By frankodragon, July 24, 2014
    • 1 reply
    • 749 views
    • 
    • RevEng
    • July 25, 2014

42. 7800basic Newbie problem

    By pacgreg, July 4, 2014
    • 5 replies
    • 1.1k views
    • 
    • RevEng
    • July 21, 2014

43. 7800basic sample game - Smasteroids

    By Atarius Maximus, July 12, 2014
    • 7 replies
    • 3.5k views
    • 
    • TrekMD
    • July 15, 2014

44. Revisiting Pac & Pal...

    By BioForceApe, June 23, 2014
    • 1 reply
    • 984 views
    • 
    • Jaynz
    • July 8, 2014

45. An error on my end or is it the machine

    By frankodragon, July 6, 2014
    • 4 replies
    • 1k views
    • 
    • frankodragon
    • July 6, 2014

46. 7800basic programmers: what is your PC screen resolution? 1 2

    By Random Terrain, June 27, 2014
    • 26 replies
    • 2.9k views
    • 
    • Random Terrain
    • July 1, 2014

47. Soccer games for the 7800

    By gambler172, June 14, 2014
    • 10 replies
    • 3k views
    • 
    • gambler172
    • June 22, 2014

48. The Keypad

    By Jaynz, May 1, 2014   

    • Perhaps a stupid question...
    • 5 replies
    • 947 views
    • 
    • Trebor
    • May 2, 2014

49. Both buttons together - Does it work on hardware?

    By MAC-42, April 17, 2014
    • 6 replies
    • 961 views
    • 
    • MAC-42
    • April 17, 2014

50. MESS 0.153... more accuracy for 7800 emulation

    By RevEng, April 7, 2014
    • 2 replies
    • 1.7k views
    • 
    • DanBoris
    • April 8, 2014