TI-99/4A Development

2,751 topics in this forum

1. 120Hz IRQ timer?

   By OLD CS1, December 29, 2015
   • 1 reply
   • 742 views
   • 
   • Tursi
   • December 30, 2015

2. 16 bytes in >8300 wanted...

   By moulinaie, December 20, 2011
   • 11 replies
   • 1.3k views
   • 
   • sometimes99er
   • December 23, 2011

3. 16-Bit RAM and the RF Shield... 1 2

   By Kchula-Rrit, October 11, 2020   

   • hardware
   • ram
   • (and 1 more)

     Tagged with:

     • hardware
     • ram
     • 16-bit
   • 43 replies
   • 2.3k views
   • 
   • Reciprocating Bill
   • December 13, 2020

4. 19 Carrots of Gold 1 2 3

   By sometimes99er, September 1, 2016   

   • xb
   • demo
   • 52 replies
   • 4k views
   • 
   • sometimes99er
   • September 15, 2016

5. 1980gamer's Frogger Demo

   By Willsy, June 5, 2014
   • 4 replies
   • 952 views
   • 
   • atrax27407
   • June 14, 2014

6. 19V laptop adapter as TI power?

   By Kchula-Rrit, July 20, 2020
   • 7 replies
   • 500 views
   • 
   • Kchula-Rrit
   • October 20, 2020

7. 2 New games started. AL-Bert and Lunar Rescue

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

8. 2 off V9938's up for grabs

   By Stuart, February 9, 2019
   • 3 replies
   • 294 views
   • 
   • Stuart
   • February 9, 2019

9. 2 Port Cartridge Expander

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

10. 2 wire serial EEPROM and 9901

    By InsaneMultitasker, August 6, 2018
    • 8 replies
    • 665 views
    • 
    • Willsy
    • August 8, 2018

11. 2015 Holiday Demo Contest (entries only) Thread

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

12. 2048

    By lucien2, April 20, 2014
    • 11 replies
    • 1.7k views
    • 
    • mizapf
    • April 23, 2014

13. 24x32 resolutinon crap game ideas

    By S1500, December 8, 2009
    • 12 replies
    • 2.5k views
    • 
    • unhuman
    • December 22, 2009

14. 2764 adapter for a TMS2564

    By atrax27407, December 30, 2019
    • 17 replies
    • 1.7k views
    • 
    • hoffy84
    • September 9, 2022

15. 29 year old bug

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

16. 3 new games (classic99)

    By TEXAS_JOE, August 11, 2011
    • 11 replies
    • 1.2k views
    • 
    • Willsy
    • August 12, 2011

17. 3 XB Games Released!

    By Tator, June 13, 2023
    • 6 replies
    • 375 views
    • 
    • senior_falcon
    • June 14, 2023

18. 3.58MHz RS-232 baud tables for nanoPEB?

    By ckoba, April 22, 2015
    • 15 replies
    • 1.1k views
    • 
    • ckoba
    • April 25, 2015

19. 32K access from XB

    By Opry99er, April 15, 2015
    • 7 replies
    • 817 views
    • 
    • RXB
    • April 16, 2015

20. 32k expansion for the side port - released 1 2 3 4 19

    By jedimatt42, July 5, 2016   

    • 32k
    • sidecar
    • (and 1 more)

      Tagged with:

      • 32k
      • sidecar
      • memory
    • 458 replies
    • 49.5k views
    • 
    • jedimatt42
    • May 16, 2023

21. 32k ramdisk program with filename, OPEN support?

    By jrhodes, August 13, 2018   

    • topic considered closed by OP
    • 17 replies
    • 1k views
    • 
    • RXB
    • August 18, 2018

22. 3d case files for tipi 32k

    By dhe, August 11, 2020
    • 17 replies
    • 601 views
    • 
    • jedimatt42
    • August 15, 2020

23. 3D effects ...

    By sometimes99er, February 13, 2012   

    • XB
    • 10 replies
    • 2.1k views
    • 
    • sometimes99er
    • February 22, 2012

24. 3D printed TI99 VGA port for F18A

    By dphirschler, March 17   

    • vga
    • f18a
    • 15 replies
    • 421 views
    • 
    • dphirschler
    • Friday at 08:08 PM

25. 3D RPG idea

    By Gip-Gip, April 12, 2020
    • 10 replies
    • 903 views
    • 
    • Ksarul
    • July 7, 2020

26. 40 column routine or early version of XB24 for XB 1 2

    By hloberg, April 7, 2019   

    • xb24
    • 40 column
    • (and 1 more)

      Tagged with:

      • xb24
      • 40 column
      • call link
    • 46 replies
    • 2.1k views
    • 
    • retroclouds
    • September 4, 2021

27. 40 column text mode in Extended Basic? 1 2

    By Vorticon, November 13, 2016
    • 26 replies
    • 1.7k views
    • 
    • Vorticon
    • November 14, 2016

28. 4A ROM Replacement

    By Willsy, March 23, 2015
    • 6 replies
    • 1.5k views
    • 
    • repetto74
    • October 19, 2017

29. 4Anoid - Arkanoid conversion for the TI-99/4A 1 2 3 4 6

    By OLD CS1, November 2, 2014
    • 133 replies
    • 9.4k views
    • 
    • Schmitzi
    • July 12, 2015

30. 504K MEMEX

    By Ksarul, June 20, 2022
    • 18 replies
    • 1.3k views
    • 
    • Ksarul
    • February 13

31. 512K cart board (PLCC) - Troubleshooting 1 2 3

    By acadiel, June 12, 2011
    • 61 replies
    • 4.8k views
    • 
    • Ksarul
    • July 23, 2011

32. 512K Red Boards and the MBM27C4000

    By Ksarul, January 19, 2021
    • 0 replies
    • 305 views
    • 
    • Ksarul
    • January 19, 2021

33. 5V pins in PIO interface

    By ralphb, December 1, 2018   

    • PIO
    • 4 replies
    • 339 views
    • 
    • TheBF
    • December 4, 2018

34. 6 Button Gamepad for the TI-99/4a 1 2

    By Sinphaltimus, June 4, 2017   

    • gamepad
    • 6 button
    • (and 2 more)

      Tagged with:

      • gamepad
      • 6 button
      • joystick
      • adaptor
    • 25 replies
    • 4.6k views
    • 
    • Ksarul
    • February 3, 2019

35. 64X48 screen mode

    By bfollett, September 6, 2013
    • 2 replies
    • 682 views
    • 
    • Gemintronic
    • September 6, 2013

36. 768 sprites

    By sometimes99er, February 12, 2017
    • 8 replies
    • 837 views
    • 
    • Asmusr
    • February 13, 2017

37. 8 Sprites and then....

    By SuperSixEVO, April 18, 2020
    • 2 replies
    • 407 views
    • 
    • TheBF
    • April 18, 2020

38. 80 column menu 1 2

    By InsaneMultitasker, August 17, 2015   

    • BOOT
    • MENU
    • (and 2 more)

      Tagged with:

      • BOOT
      • MENU
      • F18A
      • GRAM
    • 27 replies
    • 3.3k views
    • 
    • rgjt
    • June 2, 2021

39. 80 columns with XB

    By senior_falcon, December 24, 2018
    • 2 replies
    • 379 views
    • 
    • arcadeshopper
    • December 26, 2018

40. 80-Column game "Texan Dealer 2" 1 2

    By Retrospect, February 16, 2018
    • 31 replies
    • 1.7k views
    • 
    • senior_falcon
    • May 24, 2018

41. 838 - IO Card (Flex Interface card replacement!) 1 2 3 4

    By Shift838, August 13, 2021
    • 96 replies
    • 5.1k views
    • 
    • MikeV
    • April 27, 2022

42. 838 AT2XT Keyboard Adapter v2.0 Firmware Update

    By Shift838, October 3, 2021
    • 9 replies
    • 504 views
    • 
    • 9640News
    • October 12, 2021

43. 838 Drive Select Board

    By Shift838, July 29, 2018
    • 8 replies
    • 713 views
    • 
    • Shift838
    • August 7, 2018

44. 838-Bus Mouse Adapter

    By Shift838, November 7, 2022
    • 11 replies
    • 1.2k views
    • 
    • Shift838
    • December 9, 2022

45. 838-FLOW

    By Shift838, March 31, 2020
    • 8 replies
    • 617 views
    • 
    • InsaneMultitasker
    • April 2, 2020

46. 838-PEB 1 2 3 4

    By Shift838, August 2, 2021
    • 80 replies
    • 3.9k views
    • 
    • Shift838
    • February 19, 2023

47. 838-SPEECH In Development

    By Shift838, February 25, 2022
    • 22 replies
    • 953 views
    • 
    • Shift838
    • March 5, 2022

48. 8K Supercart 1 2 3

    By Tempest, April 5, 2013
    • 68 replies
    • 4.8k views
    • 
    • Tursi
    • May 17, 2013

49. 8x8 random CALL CHAR junk?

    By S1500, February 15, 2011
    • 12 replies
    • 1.8k views
    • 
    • Fishsta
    • February 22, 2011

50. 99 Magazine? [not "99'er"]

    By GratedTopping, July 30, 2011
    • 3 replies
    • 765 views
    • 
    • Ksarul
    • July 31, 2011