TI-99/4A Development

2,826 topics in this forum

1. How fast is Turbo Forth compared to Assembler?

   By courtesi96, June 22, 2017
   • 15 replies
   • 2k views
   • 
   • Willsy
   • June 30, 2017

2. TurboForth How-to Videos

   By Willsy, June 22, 2017
   • 21 replies
   • 1.7k views
   • 
   • Willsy
   • June 28, 2017

3. LA Topics Newsletter

   By Bob K, June 25, 2017
   • 12 replies
   • 950 views
   • 
   • RXB
   • June 28, 2017

4. ISO TMS9996 datasheet, assembly manual, etc.

   By jbdigriz, June 25, 2017
   • 7 replies
   • 898 views
   • 
   • jbdigriz
   • June 27, 2017

5. IEEE Spectrum on TI 99/4 history

   By ralphb, June 27, 2017
   • 2 replies
   • 1k views
   • 
   • ralphb
   • June 27, 2017

6. programming music in Basic / EB - half note calculation

   By digdugnate, June 23, 2017
   • 10 replies
   • 1.1k views
   • 
   • digdugnate
   • June 26, 2017

7. Smooth scrolling 1 2 3 4 14

   By Asmusr, April 6, 2013   

   • Scrolling
   • Assembler
   • 347 replies
   • 32.6k views
   • 
   • apersson850
   • June 25, 2017

8. Creating bank switched cartridges with gcc 1 2 3 4 5

   By TheMole, August 7, 2015   

   • gcc
   • cartridge
   • (and 1 more)

     Tagged with:

     • gcc
     • cartridge
     • bankswitching
   • 101 replies
   • 8.9k views
   • 
   • mindlord
   • June 17, 2017

9. VDP overrun revisited... 1 2

   By marc.hull, June 12, 2010
   • 36 replies
   • 3.6k views
   • 
   • Tursi
   • June 16, 2017

10. Internal 64 K RAM memory expansion

    By apersson850, June 14, 2017
    • 9 replies
    • 2.1k views
    • 
    • apersson850
    • June 15, 2017

11. Raycasting 1 2 3 4

    By Asmusr, April 10, 2017
    • 81 replies
    • 6.5k views
    • 
    • Asmusr
    • June 9, 2017

12. TMS9900 likes direct threaded code

    By TheBF, June 7, 2017
    • 6 replies
    • 865 views
    • 
    • TheBF
    • June 8, 2017

13. Homebrew V9958 Boards/Schematics

    By Xenophon, July 20, 2015
    • 7 replies
    • 2.8k views
    • 
    • timofonic
    • June 6, 2017

14. Rough Idea for multi button gamepads 1 2 3

    By Sinphaltimus, May 24, 2017   

    • Atari Joystick
    • Dual-cables
    • (and 1 more)

      Tagged with:

      • Atari Joystick
      • Dual-cables
      • Multi-button
    • 51 replies
    • 3.9k views
    • 
    • Sinphaltimus
    • June 4, 2017

15. GCC: another multiply bug?

    By chue, May 3, 2017   

    • gcc
    • 12 replies
    • 1.6k views
    • 
    • chue
    • June 3, 2017

16. TI-99/4A Software Conversion

    By davidped, May 11, 2017   

    • emulators
    • hardware
    • (and 1 more)

      Tagged with:

      • emulators
      • hardware
      • services
    • 23 replies
    • 1.9k views
    • 
    • Sinphaltimus
    • June 2, 2017

17. Let's Talk About Sprites

    By TheBF, May 26, 2017
    • 24 replies
    • 1.5k views
    • 
    • TheBF
    • June 2, 2017

18. OT: Mojo FPGA Board

    By Willsy, May 29, 2017
    • 6 replies
    • 1.8k views
    • 
    • matthew180
    • June 1, 2017

19. Musical hardware and a TI-99

    By TheBF, May 31, 2017
    • 6 replies
    • 753 views
    • 
    • mizapf
    • May 31, 2017

20. ROM Layout?

    By Gip-Gip, May 25, 2017
    • 3 replies
    • 982 views
    • 
    • Willsy
    • May 26, 2017

21. Forth Primer: Factoring code for clarity #6

    By TheBF, May 22, 2017
    • 6 replies
    • 760 views
    • 
    • TheBF
    • May 23, 2017

22. In DeNile 1 2

    By Retrospect, May 4, 2017
    • 45 replies
    • 2.6k views
    • 
    • TheBF
    • May 21, 2017

23. Interfacing with the cartridge port

    By AwkwardPotato, May 21, 2017   

    • cartridge port
    • ti-99
    • (and 1 more)

      Tagged with:

      • cartridge port
      • ti-99
      • arduino
    • 7 replies
    • 1.4k views
    • 
    • Tursi
    • May 21, 2017

24. Small C retarget project

    By Gip-Gip, May 21, 2017
    • 2 replies
    • 778 views
    • 
    • Gip-Gip
    • May 21, 2017

25. assembly development

    By InsaneMultitasker, May 20, 2017
    • 11 replies
    • 1.2k views
    • 
    • Asmusr
    • May 21, 2017

26. Forth: The Cart Before the Horse (#5)

    By Willsy, May 16, 2017   

    • turboforth
    • forth
    • (and 5 more)

      Tagged with:

      • turboforth
      • forth
      • programming
      • fbforth
      • camel99
      • language
      • tutorial
    • 9 replies
    • 1.4k views
    • 
    • Lee Stewart
    • May 17, 2017

27. TI - Cartridge Based Operating System -- (Potential & Discussion)

    By Omega-TI, April 25, 2017   

    • TI-99/4A
    • OS99
    • (and 2 more)

      Tagged with:

      • TI-99/4A
      • OS99
      • FG99
      • RetroComputing
    • 19 replies
    • 1.8k views
    • 
    • Gip-Gip
    • May 17, 2017

28. Forth: VARIABLES and the STACK (#4)

    By TheBF, May 16, 2017
    • 5 replies
    • 826 views
    • 
    • Willsy
    • May 16, 2017

29. TI Carts in Assembly and GPL

    By acadiel, May 14, 2017
    • 9 replies
    • 1.3k views
    • 
    • S1500
    • May 16, 2017

30. Forth: Bouncing some ideas around (#3)

    By Willsy, May 15, 2017   

    • forth
    • turboforth
    • (and 4 more)

      Tagged with:

      • forth
      • turboforth
      • fbForth
      • programming
      • forth programming
      • forth language
    • 2 replies
    • 1.2k views
    • 
    • Willsy
    • May 16, 2017

31. Forth: A Brief Primer (#2) 1 2

    By Willsy, May 10, 2017   

    • forth primer tutorial
    • 39 replies
    • 2.1k views
    • 
    • TheBF
    • May 16, 2017

32. USB Keyboard Adapter w/Arduino style components 1 2 3 4 5

    By jedimatt42, September 16, 2015
    • 106 replies
    • 12.9k views
    • 
    • jedimatt42
    • May 14, 2017

33. Fixed point numbers

    By Asmusr, May 11, 2017
    • 15 replies
    • 1.2k views
    • 
    • TheBF
    • May 13, 2017

34. Skyway 1 2

    By Asmusr, April 1, 2017
    • 47 replies
    • 5k views
    • 
    • Asmusr
    • May 13, 2017

35. Forth: A Sojourn Into Stack Comments (#1)

    By Willsy, May 10, 2017   

    • forth primer tutorial
    • 1 reply
    • 797 views
    • 
    • Lee Stewart
    • May 12, 2017

36. Differential calculations

    By Asmusr, April 28, 2017
    • 15 replies
    • 1.4k views
    • 
    • RXB
    • May 9, 2017

37. Checking for disk error in assembly

    By senior_falcon, May 8, 2017
    • 11 replies
    • 1.2k views
    • 
    • Lee Stewart
    • May 9, 2017

38. Memory Expansion vs VDP RAM speed tests

    By TheBF, May 5, 2017   

    • memory
    • speed
    • (and 1 more)

      Tagged with:

      • memory
      • speed
      • benchmark
    • 8 replies
    • 1.4k views
    • 
    • RXB
    • May 6, 2017

39. Road Hunter 1 2 3 4 9

    By Asmusr, January 19, 2014   

    • Games
    • 207 replies
    • 20.2k views
    • 
    • Asmusr
    • May 4, 2017

40. Where's the FestWest2017 big reveal?

    By gfreige, April 30, 2017
    • 2 replies
    • 1k views
    • 
    • Omega-TI
    • April 30, 2017

41. F18A and XB 1 2

    By Opry99er, April 17, 2017
    • 28 replies
    • 2.2k views
    • 
    • PeteE
    • April 26, 2017

42. win994a help

    By samishal, April 24, 2017
    • 11 replies
    • 1.6k views
    • 
    • samishal
    • April 26, 2017

43. Power droids

    By sometimes99er, September 17, 2016   

    • xb
    • demo
    • 4 replies
    • 1.7k views
    • 
    • Retrospect
    • April 25, 2017

44. Making platformers in XB

    By Retrospect, April 21, 2017
    • 9 replies
    • 889 views
    • 
    • Retrospect
    • April 23, 2017

45. Would love to see this for TI programming 1 2

    By Airshack, April 10, 2017
    • 26 replies
    • 1.6k views
    • 
    • Opry99er
    • April 23, 2017

46. Media source

    By Opry99er, April 15, 2017
    • 6 replies
    • 723 views
    • 
    • Opry99er
    • April 21, 2017

47. FUZIX: Unix on TI99?

    By Lord Vorkosigan, April 18, 2017
    • 5 replies
    • 1.9k views
    • 
    • mizapf
    • April 20, 2017

48. TIMXT with NanoPEB Version 1 ! 1 2

    By Shift838, December 11, 2016
    • 42 replies
    • 4.4k views
    • 
    • gfreige
    • April 12, 2017

49. Defining CHARs with binary numbers

    By TheBF, April 5, 2017
    • 17 replies
    • 1.4k views
    • 
    • TheBF
    • April 11, 2017

50. Auto-starting GROM carts?

    By ralphb, April 5, 2017   

    • gpl
    • 16 replies
    • 1.4k views
    • 
    • ralphb
    • April 9, 2017