TI-99/4A Development

2,809 topics in this forum

1. Convert from bitmask to screen location

   By unhuman, March 11, 2018
   • 1 reply
   • 455 views
   • 
   • OLD CS1
   • March 11, 2018

2. Convert from TIFILES format to Text?

   By unhuman, March 6, 2018
   • 13 replies
   • 1.4k views
   • 
   • unhuman
   • March 10, 2018

3. Playground download- virus detected?

   By DuaneAL, March 8, 2018
   • 16 replies
   • 1k views
   • 
   • mizapf
   • March 9, 2018

4. PRINT CHR$(14913) prints "A"

   By Ed in SoDak, March 9, 2018
   • 4 replies
   • 483 views
   • 
   • Ed in SoDak
   • March 9, 2018

5. Star Wars Millennium Falcon: Asteroid Assault (New Game near completion)

   By Iwantgames:), March 4, 2018
   • 12 replies
   • 1.3k views
   • 
   • Iwantgames:)
   • March 8, 2018

6. Sprites in Pascal 1 2 3

   By Rossman, October 24, 2017   

   • Pascal
   • Sprites
   • 50 replies
   • 3.9k views
   • 
   • Rossman
   • March 5, 2018

7. F'WEB Farms - Source code Part 1

   By atrax27407, March 2, 2018
   • 19 replies
   • 1k views
   • 
   • Tursi
   • March 4, 2018

8. "Hombre" Document Cleanup

   By helocast, February 24, 2018   

   • Hombre
   • CF40050
   • 15 replies
   • 964 views
   • 
   • Schmitzi
   • March 4, 2018

9. Cortex BASIC in 80 Column 1 2 3 4

   By Stuart, November 23, 2015
   • 83 replies
   • 6.4k views
   • 
   • RXB
   • March 4, 2018

10. 2 Port Cartridge Expander

    By Shift838, February 28, 2018
    • 4 replies
    • 634 views
    • 
    • Shift838
    • March 4, 2018

11. TIcode99 output examples (TI-99/4A Rom0 - System Software)

    By kl99, March 1, 2018   

    • TIcode99
    • TMS9900
    • (and 3 more)

      Tagged with:

      • TIcode99
      • TMS9900
      • Assembler
      • Source Code
      • System Software
    • 5 replies
    • 1.3k views
    • 
    • kl99
    • March 2, 2018

12. MDOS Multitasking

    By 9640News, February 26, 2018
    • 3 replies
    • 544 views
    • 
    • 9640News
    • February 28, 2018

13. Book: Basic programs for small computers

    By oddemann, February 27, 2018   

    • Things to do in 4K or less
    • 3 replies
    • 576 views
    • 
    • oddemann
    • February 28, 2018

14. b99 cross-compiler *WORK IN PROGRESS*

    By retroclouds, March 22, 2015   

    • b99
    • cross-compiler
    • (and 1 more)

      Tagged with:

      • b99
      • cross-compiler
      • TMS9900
    • 19 replies
    • 1.5k views
    • 
    • retroclouds
    • February 27, 2018

15. Moving a sprite through a Maze, Extended Basic 1 2

    By LASooner, February 19, 2018
    • 27 replies
    • 1.7k views
    • 
    • Opry99er
    • February 26, 2018

16. TI Speech (and Pascal, of course)

    By Rossman, February 24, 2018
    • 4 replies
    • 737 views
    • 
    • Rossman
    • February 25, 2018

17. Sell your stuff on arcadeshopper.com

    By arcadeshopper, February 24, 2018
    • 2 replies
    • 473 views
    • 
    • ti99iuc
    • February 24, 2018

18. How NOT to use NOT: a CALL KEY() example

    By OLD CS1, February 23, 2018   

    • NOT operator
    • Extended BASIC
    • (and 1 more)

      Tagged with:

      • NOT operator
      • Extended BASIC
      • CALL KEY
    • 8 replies
    • 733 views
    • 
    • Lee Stewart
    • February 23, 2018

19. XB/BASIC Seeds

    By Opry99er, February 22, 2018
    • 7 replies
    • 728 views
    • 
    • RXB
    • February 22, 2018

20. TI BASIC Plus (TIB+)

    By FDOS, February 21, 2018
    • 5 replies
    • 570 views
    • 
    • Opry99er
    • February 21, 2018

21. GRAM & BASIC & VDP 1 2 3

    By Opry99er, January 31, 2018
    • 59 replies
    • 2.9k views
    • 
    • FDOS
    • February 21, 2018

22. Lots of Assembler Questions 1 2 3

    By kl99, January 20, 2018   

    • TMS9900
    • Operands
    • (and 1 more)

      Tagged with:

      • TMS9900
      • Operands
      • Editor/Assembler
    • 73 replies
    • 4.4k views
    • 
    • kl99
    • February 20, 2018

23. Timing loops in compiled BASIC/XB?

    By OLD CS1, February 18, 2018   

    • timer
    • compiled basic
    • 2 replies
    • 579 views
    • 
    • kl99
    • February 20, 2018

24. Reverse engineering the old Myarc Personality Card backup/restore

    By acadiel, February 17, 2018
    • 10 replies
    • 1k views
    • 
    • acadiel
    • February 19, 2018

25. 99110 ROM disassembly 1 2

    By pnr, January 21, 2018
    • 26 replies
    • 2.4k views
    • 
    • pnr
    • February 15, 2018

26. CS1 support in JS99er.net (was: Question about 9901 timer)

    By Asmusr, February 8, 2018
    • 24 replies
    • 1k views
    • 
    • Opry99er
    • February 14, 2018

27. TI Basic game nearly finished: Viper squadron 1 2

    By tibasic, May 4, 2017
    • 45 replies
    • 4.1k views
    • 
    • senior_falcon
    • February 12, 2018

28. Tutankham for the TI-99/4A 1 2 3 4 8

    By retroclouds, April 4, 2010
    • 184 replies
    • 25.2k views
    • 
    • digdugnate
    • February 11, 2018

29. Assembly Trick : Bit-delimited Strings

    By adamantyr, February 9, 2018   

    • TMS9900
    • Assembly
    • (and 1 more)

      Tagged with:

      • TMS9900
      • Assembly
      • Development
    • 8 replies
    • 1.1k views
    • 
    • adamantyr
    • February 10, 2018

30. I/O Error Reporting

    By Pheonix, January 29, 2018
    • 13 replies
    • 1.9k views
    • 
    • Pheonix
    • February 8, 2018

31. Why does TI basic shift name table values?

    By jedimatt42, October 3, 2016
    • 8 replies
    • 964 views
    • 
    • acadiel
    • February 5, 2018

32. Not Prime! 1 2

    By matthew180, May 26, 2010
    • 25 replies
    • 3.9k views
    • 
    • Asmusr
    • February 2, 2018

33. Unwanted Auto-Auto-Repeat

    By ralphb, January 30, 2018
    • 5 replies
    • 692 views
    • 
    • RXB
    • February 1, 2018

34. General Turbo Forth questions 1 2 3 4

    By Vorticon, August 30, 2015
    • 98 replies
    • 5.4k views
    • 
    • TheBF
    • February 1, 2018

35. Classic99 versus Classic99 head to head turn based game DEMO 1 2

    By Sinphaltimus, January 6, 2018   

    • head to head
    • classic99
    • (and 3 more)

      Tagged with:

      • head to head
      • classic99
      • tipi
      • demo
      • game
    • 30 replies
    • 3.4k views
    • 
    • Opry99er
    • January 30, 2018

36. CRU read cycle and enabling signal to CRUIN

    By FarmerPotato, January 30, 2018
    • 4 replies
    • 700 views
    • 
    • helocast
    • January 30, 2018

37. Attempting to Resurrect a Game My Dad Built

    By mrulrich, December 12, 2017
    • 12 replies
    • 1.4k views
    • 
    • Shift838
    • January 29, 2018

38. OT Shooting yourself in the foot in different programming languages

    By acadiel, January 25, 2018   

    • OT
    • 18 replies
    • 1.5k views
    • 
    • acadiel
    • January 27, 2018

39. TI meetings in 2018

    By Berry, January 24, 2018   

    • AGM and workshop of TIUGUK
    • 0 replies
    • 571 views
    • 
    • Berry
    • January 24, 2018

40. I always knew Lee Stewart was a wizard...

    By TheBF, January 18, 2018   

    • humour
    • 6 replies
    • 783 views
    • 
    • mizapf
    • January 20, 2018

41. Linking Data Between Programs

    By CamTheBridge, January 18, 2018   

    • extended basic
    • peek
    • (and 3 more)

      Tagged with:

      • extended basic
      • peek
      • load
      • init
      • link
    • 18 replies
    • 1.3k views
    • 
    • RXB
    • January 20, 2018

42. STACK, DATA, and strings 1 2

    By Opry99er, January 8, 2018
    • 46 replies
    • 2.2k views
    • 
    • Opry99er
    • January 19, 2018

43. Project box for side port expansion board

    By atrax27407, January 18, 2018
    • 2 replies
    • 546 views
    • 
    • atrax27407
    • January 18, 2018

44. Interesting RND behavior

    By Opry99er, January 16, 2018
    • 3 replies
    • 673 views
    • 
    • Opry99er
    • January 16, 2018

45. Anybody with experience with the TMS9911 DMA controller?

    By pnr, January 16, 2018
    • 1 reply
    • 598 views
    • 
    • Stuart
    • January 16, 2018

46. H/W question: interrupt synchronisation on 99xx/99xxx

    By pnr, January 15, 2018
    • 2 replies
    • 501 views
    • 
    • Stuart
    • January 16, 2018

47. 2 New games started. AL-Bert and Lunar Rescue

    By 1980gamer, January 7, 2018
    • 16 replies
    • 1.3k views
    • 
    • jstimson
    • January 14, 2018

48. Editor Assembler Sound examples question

    By TheBF, January 11, 2018
    • 9 replies
    • 809 views
    • 
    • TheBF
    • January 12, 2018

49. Variable name/program space relationship 1 2

    By Opry99er, January 4, 2018
    • 30 replies
    • 1.6k views
    • 
    • RXB
    • January 10, 2018

50. OCR for Code?

    By matthew180, January 4, 2018
    • 19 replies
    • 1k views
    • 
    • OLD CS1
    • January 6, 2018