TI-99/4A Development

2,813 topics in this forum

1. New emulator - BuLWiP 1 2

   By PeteE, February 28, 2023
   • 41 replies
   • 3.2k views
   • 
   • PeteE
   • April 1

2. Paul Urbanus’ write up on Parsec’s smooth scrolling and simultaneous speech during gameplay from Reddit

   By acadiel, March 31
   • 2 replies
   • 237 views
   • 
   • acadiel
   • March 31

3. v9t9 TI-99/4A emulator written in java 1 2 3

   By retroclouds, January 6, 2013   

   • v9t9
   • ti-99/4a
   • (and 2 more)

     Tagged with:

     • v9t9
     • ti-99/4a
     • emulator
     • java
   • 70 replies
   • 13.8k views
   • 
   • Gary from OPA
   • March 30

4. Eliminating the 4 wait state penalty for memory mapped hardware

   By hhos, March 1
   • 19 replies
   • 709 views
   • 
   • mrvan
   • March 26

5. The Joel Test for Software Development

   By TheBF, March 24
   • 1 reply
   • 219 views
   • 
   • chue
   • March 24

6. Using a laser engraver/cutter to create a PCB

   By Shift838, March 22
   • 2 replies
   • 366 views
   • 
   • FarmerPotato
   • March 23

7. dsrlnk Toward a Better (and Better-Documented) DSRLNK 1 2 3 4

   By Lee Stewart, September 20, 2023   

   • assembly
   • assembler
   • 85 replies
   • 3.2k views
   • 
   • TheBF
   • March 22

8. TI-99/4A Hi-Tek Keyboard Replacement 1 2

   By Nelno, April 27, 2021
   • 34 replies
   • 5.3k views
   • 
   • Kchula-Rrit
   • March 21

9. The TMS9900 Cheat-Sheet 1 2

   By SteveB, January 7
   • 27 replies
   • 1.8k views
   • 
   • TheBF
   • March 19

10. Making & Programming & Assembling new UberGROM Cartridges and 64k Cartridges Images 1 2

    By Gary from OPA, March 7
    • 41 replies
    • 1k views
    • 
    • Ksarul
    • March 18

11. Free HiMem after compiling XB?

    By SteveB, March 8
    • 6 replies
    • 418 views
    • 
    • SteveB
    • March 16

12. AVPC with GSB-8200 for RGBS to VGA

    By Gary from OPA, February 25
    • 17 replies
    • 576 views
    • 
    • Gary from OPA
    • March 12

13. Mini Memory assembler WAV file?

    By Krool885, March 10
    • 2 replies
    • 170 views
    • 
    • Krool885
    • March 10

14. VGM Compression Tool 1 2 3 4 9

    By Tursi, May 16, 2014
    • 220 replies
    • 17.3k views
    • 
    • Tursi
    • March 9

15. How long would the following instructions take? 1 2

    By Willsy, June 15, 2011
    • 37 replies
    • 3.2k views
    • 
    • TheBF
    • March 8

16. Physics model for car

    By Asmusr, March 7
    • 10 replies
    • 376 views
    • 
    • Asmusr
    • March 8

17. 29 year old bug

    By webdeck, February 8
    • 19 replies
    • 841 views
    • 
    • DuaneAL
    • March 1

18. Finished (probably) version of our first TI game!

    By Krool885, February 28
    • 11 replies
    • 539 views
    • 
    • PeteE
    • February 29

19. Crashing the TI BASIC interpreter 1 2

    By Eric Lafortune, June 26, 2022
    • 28 replies
    • 1.3k views
    • 
    • Fredrik Öhrström
    • February 26

20. TI-99 OS Development 1 2

    By Gip-Gip, May 16, 2017
    • 40 replies
    • 3.9k views
    • 
    • acadiel
    • February 26

21. SOB (Son Of Board) GROM0, 1 and 2 1 2 3 4

    By RXB, February 19
    • 83 replies
    • 1.8k views
    • 
    • Gary from OPA
    • February 25

22. Porting paged TI games to the Geneve 1 2

    By mizapf, May 27, 2022
    • 48 replies
    • 2.2k views
    • 
    • InsaneMultitasker
    • February 25

23. Cosmic Shootout

    By Retrospect, February 19
    • 7 replies
    • 661 views
    • 
    • Retrospect
    • February 25

24. Dodge City

    By Retrospect, February 24
    • 2 replies
    • 399 views
    • 
    • Retrospect
    • February 25

25. Death Forest

    By Retrospect, February 11
    • 24 replies
    • 1k views
    • 
    • Retrospect
    • February 22

26. Emulated Hunt the Wumpus - weird keyboard issue

    By webdeck, February 19
    • 3 replies
    • 253 views
    • 
    • MarkB
    • February 21

27. Linux FUSE driver for sector dump DSK files

    By MarkB, February 5
    • 23 replies
    • 468 views
    • 
    • MarkB
    • February 20

28. TurboForth booting with odd error

    By Pixel_Outlaw, February 12
    • 7 replies
    • 195 views
    • 
    • GDMike
    • February 19

29. Extended BASIC G.E.M. 1 2 3 4 31

    By senior_falcon, December 30, 2019
    • 763 replies
    • 52.3k views
    • 
    • RXB
    • February 18

30. Reading Data from Cartridge 1 2

    By Cheung, February 16   

    • grom bank
    • 26 replies
    • 838 views
    • 
    • Cheung
    • February 18

31. APESoft Expanded Basic routines

    By awesp, June 26, 2013
    • 22 replies
    • 1.8k views
    • 
    • gferluga
    • February 18

32. Geneve TI program compatibility issues GPL mode

    By arcadeshopper, February 13
    • 9 replies
    • 405 views
    • 
    • hloberg
    • February 16

33. Some questions on oddities I've encountered while playing with this emulator...

    By webdeck, February 11
    • 10 replies
    • 390 views
    • 
    • webdeck
    • February 15

34. Can anyone get this Assembly code to work? 1 2

    By Retrospect, February 13
    • 27 replies
    • 874 views
    • 
    • Tursi
    • February 15

35. Solved: Error assembling after XB Compiler

    By AlexJ, February 13
    • 4 replies
    • 227 views
    • 
    • Retrospect
    • February 13

36. 504K MEMEX

    By Ksarul, June 20, 2022
    • 18 replies
    • 1.4k views
    • 
    • Ksarul
    • February 13

37. Platform 3

    By Asmusr, March 6, 2020
    • 17 replies
    • 1.8k views
    • 
    • Serafini Lapo
    • February 10

38. Linux-like OS for the TI 1 2

    By insomnia, September 1, 2018
    • 48 replies
    • 4.4k views
    • 
    • Gary from OPA
    • February 10

39. large files 1 2 3 4 5

    By mrvan, January 3
    • 109 replies
    • 3k views
    • 
    • mrvan
    • February 2

40. Idea: new Mini Memory cartridge

    By FarmerPotato, January 29
    • 7 replies
    • 596 views
    • 
    • retrodroid
    • January 30

41. Mini Memory "Ground Force Zero" game 1 2

    By Retrospect, January 28
    • 26 replies
    • 738 views
    • 
    • RXB
    • January 29

42. T40XB forgets previous GOSUB when calling PRINT of multiple lines

    By AlexJ, January 28
    • 5 replies
    • 232 views
    • 
    • AlexJ
    • January 28

43. PAL/GAL Jedec map files for TI, Corcomp, Myarc 1 2 3

    By Fritz442, October 24, 2020   

    • pal
    • gal
    • (and 3 more)

      Tagged with:

      • pal
      • gal
      • jedec
      • map files
      • repository
    • 73 replies
    • 6.4k views
    • 
    • Fritz442
    • January 24

44. Tang 20K and the Geneve

    By RickyDean, December 5, 2023
    • 21 replies
    • 805 views
    • 
    • RickyDean
    • January 22

45. Binary file read

    By Vorticon, January 20
    • 17 replies
    • 503 views
    • 
    • Tursi
    • January 22

46. Introducing picocart - it works 1 2 3 4 5

    By speccery, December 22, 2022   

    • raspberry pi pico
    • multicart
    • (and 1 more)

      Tagged with:

      • raspberry pi pico
      • multicart
      • hardware
    • 101 replies
    • 6.4k views
    • 
    • speccery
    • January 21

47. New Math Program

    By BuckoBrand, March 3, 2017
    • 6 replies
    • 883 views
    • 
    • senior_falcon
    • January 21

48. Quine challenge

    By ralphb, December 12, 2015   

    • quite
    • basic
    • (and 1 more)

      Tagged with:

      • quite
      • basic
      • puzzle
    • 8 replies
    • 1.3k views
    • 
    • TheBF
    • January 20

49. Flying Shark 1 2 3 4 13

    By Asmusr, August 5, 2017
    • 305 replies
    • 27.5k views
    • 
    • jrhodes
    • January 20

50. New TI-99/4A Forum 1 2 3 4

    By Albert, January 10, 2015
    • 75 replies
    • 8.8k views
    • 
    • Albert
    • January 20