TI-99/4A Development

2,756 topics in this forum

1. More capacity on Lotharek drive

   By Gazoo, September 4, 2015
   • 6 replies
   • 1.1k views
   • 
   • Schmitzi
   • November 12, 2015

2. Could this be the most awful TI game ever? 1 2 3

   By Retrospect, October 24, 2015
   • 53 replies
   • 3.1k views
   • 
   • Retrospect
   • November 9, 2015

3. Building a new PEB - the drive cage

   By aftyde, November 8, 2015
   • 3 replies
   • 735 views
   • 
   • aftyde
   • November 9, 2015

4. Repository for schematics, hardware development, PCB design

   By HackMac, October 9, 2015   

   • Schematics
   • PCB
   • (and 1 more)

     Tagged with:

     • Schematics
     • PCB
     • hardware development
   • 14 replies
   • 3.1k views
   • 
   • Ksarul
   • November 8, 2015

5. Looking to put some TI TMS99xx chips onto GALs/CPLDs

   By dirty-harry, November 4, 2015
   • 6 replies
   • 825 views
   • 
   • gregallenwarner
   • November 7, 2015

6. Writing to VDP in user ISR

   By ralphb, October 18, 2015   

   • assembly
   • vdp
   • (and 1 more)

     Tagged with:

     • assembly
     • vdp
     • interrupt
   • 12 replies
   • 1.3k views
   • 
   • apersson850
   • November 4, 2015

7. BLWP @0

   By Asmusr, November 1, 2015
   • 17 replies
   • 1.1k views
   • 
   • apersson850
   • November 4, 2015

8. Is 80col possible in RXB or other ebasic?

   By aftyde, October 27, 2015
   • 14 replies
   • 813 views
   • 
   • Omega-TI
   • October 30, 2015

9. ABSolutely perfect

   By Opry99er, October 29, 2015
   • 11 replies
   • 834 views
   • 
   • Opry99er
   • October 30, 2015

10. ZAXXON - Playable DEMO -

    By ti99iuc, October 24, 2015
    • 9 replies
    • 1.5k views
    • 
    • unhuman
    • October 28, 2015

11. Homebrew TI99/4A art for free

    By orion1052003, October 27, 2015
    • 0 replies
    • 552 views
    • 
    • orion1052003
    • October 27, 2015

12. Sprite editors 1 2 3 4

    By sometimes99er, February 28, 2012   

    • sprite
    • editor
    • (and 1 more)

      Tagged with:

      • sprite
      • editor
      • utility
    • 84 replies
    • 8.2k views
    • 
    • sometimes99er
    • October 24, 2015

13. Gorf: Space Warp

    By sometimes99er, August 26, 2015   

    • XB
    • demo
    • 11 replies
    • 1.8k views
    • 
    • Opry99er
    • October 24, 2015

14. Debugger instructions

    By Asmusr, October 20, 2015   

    • Assembly
    • 8 replies
    • 1.1k views
    • 
    • Willsy
    • October 22, 2015

15. programming

    By BuckoBrand, October 21, 2015
    • 4 replies
    • 766 views
    • 
    • Vorticon
    • October 21, 2015

16. GPL code

    By InsaneMultitasker, October 17, 2015
    • 7 replies
    • 940 views
    • 
    • atrax27407
    • October 18, 2015

17. PROGRAM size optimization

    By Opry99er, October 15, 2015
    • 14 replies
    • 871 views
    • 
    • ralphb
    • October 17, 2015

18. Hardware question to the HOLD/HOLDA CPU signal lines

    By HackMac, October 14, 2015
    • 5 replies
    • 762 views
    • 
    • Tursi
    • October 15, 2015

19. Converting ROM-only files for GROM devices (i.e. HSGPL Card)

    By atrax27407, October 11, 2015
    • 3 replies
    • 709 views
    • 
    • Lee Stewart
    • October 13, 2015

20. TurboForth Version 1.2.1:4 released

    By Willsy, October 6, 2015
    • 10 replies
    • 787 views
    • 
    • atrax27407
    • October 11, 2015

21. Question about vertical retrace timing

    By orbitaldecay, October 6, 2015
    • 23 replies
    • 1.3k views
    • 
    • Tursi
    • October 10, 2015

22. Sprite coincidence bit

    By Willsy, October 9, 2015   

    • sprite
    • cru
    • (and 2 more)

      Tagged with:

      • sprite
      • cru
      • coinc
      • coincidence
    • 9 replies
    • 986 views
    • 
    • Tursi
    • October 10, 2015

23. Air-Sea Battle

    By Opry99er, September 5, 2015
    • 14 replies
    • 1.2k views
    • 
    • Opry99er
    • October 9, 2015

24. Question about vertical retrace timing

    By orbitaldecay, October 6, 2015
    • 0 replies
    • 354 views
    • 
    • orbitaldecay
    • October 6, 2015

25. Help with GROM header

    By orbitaldecay, October 3, 2015
    • 18 replies
    • 1.2k views
    • 
    • Willsy
    • October 5, 2015

26. Vector Hyperdrive (A new Space Shooter) 1 2 3 4

    By Opry99er, August 15, 2015
    • 76 replies
    • 4.7k views
    • 
    • Opry99er
    • October 2, 2015

27. TurboForth website updated

    By Willsy, September 18, 2015   

    • turboforth
    • 15 replies
    • 1.3k views
    • 
    • Shift838
    • September 24, 2015

28. Disabling protection violation on cassette games in xb

    By MrGonker, September 12, 2015
    • 8 replies
    • 1.2k views
    • 
    • acadiel
    • September 16, 2015

29. Powering USB device from TI 5V?

    By jedimatt42, September 10, 2015
    • 4 replies
    • 785 views
    • 
    • jedimatt42
    • September 12, 2015

30. Trivia! Who recognizes the music in this old intro.....

    By Fredrik Öhrström, September 10, 2015
    • 6 replies
    • 923 views
    • 
    • RXB
    • September 12, 2015

31. More craziness...

    By Opry99er, September 8, 2015
    • 14 replies
    • 1.1k views
    • 
    • Opry99er
    • September 10, 2015

32. Parsec

    By Gazoo, September 9, 2015
    • 3 replies
    • 1.4k views
    • 
    • Gazoo
    • September 9, 2015

33. Sprite to *background* collision detection

    By Willsy, September 9, 2015
    • 5 replies
    • 952 views
    • 
    • TheMole
    • September 9, 2015

34. Has anyone made a TI-99/4A replacement motherboard ?

    By Enigma, September 8, 2015
    • 4 replies
    • 900 views
    • 
    • Megatron1999
    • September 9, 2015

35. How to read hardware sprite collision bit?

    By Willsy, September 9, 2015
    • 1 reply
    • 436 views
    • 
    • Willsy
    • September 9, 2015

36. "Code rain" effect [Updated to v0.4]

    By ramidavis, August 17, 2015
    • 12 replies
    • 1.5k views
    • 
    • ramidavis
    • September 8, 2015

37. Old code

    By Opry99er, September 7, 2015
    • 6 replies
    • 708 views
    • 
    • Opry99er
    • September 8, 2015

38. Mnemonic Overview

    By HackMac, September 2, 2015   

    • Assembler
    • Code
    • (and 5 more)

      Tagged with:

      • Assembler
      • Code
      • Mnemonic
      • TMS9900
      • TMS9995
      • TMS9980
      • TMS99x00
    • 4 replies
    • 1.3k views
    • 
    • Schmitzi
    • September 4, 2015

39. Reading disk sectors -- weirdness!

    By ralphb, August 27, 2015   

    • assembly
    • level1
    • (and 1 more)

      Tagged with:

      • assembly
      • level1
      • floppy
    • 15 replies
    • 1.3k views
    • 
    • InsaneMultitasker
    • August 31, 2015

40. Turboforth Game: TI-Wars 1 2

    By lucien2, April 9, 2011
    • 37 replies
    • 4.2k views
    • 
    • lucien2
    • August 30, 2015

41. Uber Cart Technical Inquiry

    By Omega-TI, April 22, 2015
    • 18 replies
    • 1.1k views
    • 
    • RXB
    • August 29, 2015

42. Cartridge burning questions

    By TheMole, August 16, 2015
    • 16 replies
    • 1.2k views
    • 
    • Tursi
    • August 28, 2015

43. TurboForth: Hunt the Wumpus

    By Willsy, August 19, 2015
    • 18 replies
    • 1.1k views
    • 
    • Willsy
    • August 25, 2015

44. fbForth 2.0: Hunt the Wumpus

    By Lee Stewart, August 20, 2015   

    • fbForth
    • Forth
    • 6 replies
    • 1.4k views
    • 
    • Opry99er
    • August 23, 2015

45. Load Turbo Forth BLOCKS in MESS

    By neglectoru, August 21, 2015
    • 7 replies
    • 724 views
    • 
    • Willsy
    • August 22, 2015

46. Graphics capture

    By Vorticon, August 18, 2015
    • 10 replies
    • 953 views
    • 
    • Vorticon
    • August 20, 2015

47. Hijacking control from a command module via fake headered cs1 file?

    By ramidavis, August 19, 2015
    • 0 replies
    • 403 views
    • 
    • ramidavis
    • August 19, 2015

48. TI Emulators and Joysticks, can we program buttons for REDO, BACK and Enter

    By globeron, March 9, 2015
    • 12 replies
    • 1.9k views
    • 
    • globeron
    • August 12, 2015

49. Games by Intrigue and Lantern

    By MrGonker, July 29, 2015
    • 8 replies
    • 1.3k views
    • 
    • MrGonker
    • August 1, 2015

50. AdventureMania by Intrigue Software (problem)

    By Retrospect, March 2, 2015
    • 20 replies
    • 1.5k views
    • 
    • MrGonker
    • July 27, 2015