TI-99/4A Development

2,765 topics in this forum

1. Conquest of the Aftermath - new game in development

   By InfernalKeith, December 4, 2015
   • 13 replies
   • 973 views
   • 
   • Ksarul
   • December 22, 2015

2. MOVB question

   By Willsy, December 17, 2015
   • 4 replies
   • 855 views
   • 
   • matthew180
   • December 19, 2015

3. Possible?

   By Opry99er, December 13, 2015
   • 22 replies
   • 1.2k views
   • 
   • Tursi
   • December 16, 2015

4. TIFILES format

   By Willsy, December 15, 2015
   • 2 replies
   • 721 views
   • 
   • mizapf
   • December 15, 2015

5. Power-up list entry in cart headers

   By Willsy, December 3, 2015
   • 6 replies
   • 687 views
   • 
   • Tursi
   • December 3, 2015

6. 2015 Holiday Demo Contest (entries only) Thread

   By Opry99er, November 9, 2015
   • 22 replies
   • 1.8k views
   • 
   • Opry99er
   • November 30, 2015

7. CITYBOMBER

   By orion1052003, December 8, 2011   

   • CITYBOMBER TI-99/4A
   • 15 replies
   • 1.7k views
   • 
   • Opry99er
   • November 23, 2015

8. Opt 3 Loader Source/Disassembly (Request)

   By gregallenwarner, November 16, 2015
   • 4 replies
   • 788 views
   • 
   • gregallenwarner
   • November 17, 2015

9. Extended Basic 2.7 Suite - Cart GROM is compromised ?

   By aftyde, October 31, 2015
   • 17 replies
   • 990 views
   • 
   • aftyde
   • November 14, 2015

10. More capacity on Lotharek drive

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

11. 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

12. Building a new PEB - the drive cage

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

13. 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

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

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

15. Writing to VDP in user ISR

    By ralphb, October 18, 2015   

    • assembly
    • vdp
    • (and 1 more)

      Tagged with:

      • assembly
      • vdp
      • interrupt
    • 12 replies
    • 1.4k views
    • 
    • apersson850
    • November 4, 2015

16. BLWP @0

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

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

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

18. ABSolutely perfect

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

19. ZAXXON - Playable DEMO -

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

20. Homebrew TI99/4A art for free

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

21. 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

22. Gorf: Space Warp

    By sometimes99er, August 26, 2015   

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

23. Debugger instructions

    By Asmusr, October 20, 2015   

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

24. programming

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

25. GPL code

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

26. PROGRAM size optimization

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

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

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

28. 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

29. TurboForth Version 1.2.1:4 released

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

30. Question about vertical retrace timing

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

31. 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

32. Air-Sea Battle

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

33. Question about vertical retrace timing

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

34. Help with GROM header

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

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

    By Opry99er, August 15, 2015
    • 76 replies
    • 4.8k views
    • 
    • Opry99er
    • October 2, 2015

36. TurboForth website updated

    By Willsy, September 18, 2015   

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

37. Disabling protection violation on cassette games in xb

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

38. Powering USB device from TI 5V?

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

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

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

40. More craziness...

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

41. Parsec

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

42. Sprite to *background* collision detection

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

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

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

44. How to read hardware sprite collision bit?

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

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

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

46. Old code

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

47. 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

48. 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

49. Turboforth Game: TI-Wars 1 2

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

50. Uber Cart Technical Inquiry

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