TI-99/4A Development

2,751 topics in this forum

1. TI and the MiniPro TL866 EPROM Programmer 1 2 3 4 15

   By atrax27407, March 7, 2018
   • 366 replies
   • 38.8k views
   • 
   • Kchula-Rrit
   • April 5

2. TI-99/4A development resources 1 2 3 4 18

   By retroclouds, November 19, 2009   

   • ti-99/4a
   • forth
   • (and 10 more)

     Tagged with:

     • ti-99/4a
     • forth
     • extended basic
     • books
     • game development
     • emulators
     • vdp9918
     • tms9900
     • compilers
     • devres
     • dsr
     • rxb
   • 444 replies
   • 140.3k views
   • 
   • TheMole
   • March 17

3. Playing VGM files in XB (?) 1 2

   By ruthven, March 17
   • 49 replies
   • 1k views
   • 
   • ruthven
   • 50 minutes ago

4. GCHAR equivalent in UCSD Pascal?

   By LarryFromBuffalo, Friday at 08:55 PM
   • 10 replies
   • 330 views
   • 
   • Vorticon
   • 5 hours ago

5. Pi Pico[W] Peripheral Expansion Box Side Port Device 1 2 3 4 15

   By JasonACT, December 11, 2023
   • 352 replies
   • 8.6k views
   • 
   • Stuart
   • 7 hours ago

6. TI Mini Expansion System 1 2 3 4 6

   By Artoj, December 27, 2022   

   • pcb
   • ti99/4a
   • (and 1 more)

     Tagged with:

     • pcb
     • ti99/4a
     • expansion board
   • 144 replies
   • 7.8k views
   • 
   • RickyDean
   • 10 hours ago

7. New SCSI card 1 2

   By Shift838, April 8
   • 37 replies
   • 588 views
   • 
   • Shift838
   • Yesterday at 12:16 AM

8. RELEASE: Phoenix 2001 Recallit v2.00 by O.P.A.

   By Gary from OPA, Tuesday at 08:58 PM
   • 0 replies
   • 72 views
   • 
   • Gary from OPA
   • Tuesday at 08:58 PM

9. The FinalGROM 99 1 2 3 4 32

   By ralphb, January 10, 2017
   • 784 replies
   • 81.1k views
   • 
   • ralphb
   • Tuesday at 06:50 PM

10. Code Conventions for Bank-Switched Cartridges?

    By Kchula-Rrit, Saturday at 02:26 AM   

    • cartridge
    • guidry
    • (and 1 more)

      Tagged with:

      • cartridge
      • guidry
      • rom
    • 18 replies
    • 351 views
    • 
    • OLD CS1
    • Tuesday at 03:36 PM

11. Problems with SLCOMPILER

    By Cheung, April 10
    • 10 replies
    • 294 views
    • 
    • Cheung
    • Monday at 08:08 PM

12. fbForth fbForth—TI Forth with File-based Block I/O [Post #1 UPDATED: 06/09/2023] 1 2 3 4 80

    By Lee Stewart, March 31, 2013   

    • fbforth
    • forth
    • (and 1 more)

      Tagged with:

      • fbforth
      • forth
      • ti forth
    • 2k replies
    • 110.5k views
    • 
    • TheBF
    • Monday at 01:54 PM

13. Cherry MX compatible upgrade for Mitsumi 99/4A keyboards 1 2

    By visrealm, April 4   

    • keyboard
    • ti-99/4a
    • 27 replies
    • 734 views
    • 
    • visrealm
    • Monday at 04:54 AM

14. Geneve OS development discussion 1 2 3 4 27

    By InsaneMultitasker, January 10, 2021   

    • geneve
    • mdos
    • (and 1 more)

      Tagged with:

      • geneve
      • mdos
      • geneve os
    • 657 replies
    • 26.8k views
    • 
    • arcadeshopper
    • Monday at 04:21 AM

15. RELEASE: Phoenix 2001 Diskodex v1.01 by O.P.A.

    By Gary from OPA, Sunday at 11:43 PM
    • 1 reply
    • 141 views
    • 
    • Gary from OPA
    • Monday at 04:21 AM

16. Another "Bad Apple" demo 1 2 3

    By Eric Lafortune, July 31, 2022
    • 72 replies
    • 3.2k views
    • 
    • Eric Lafortune
    • Sunday at 10:27 PM

17. TI-99 Infocom Interpreter Dev 1 2 3 4 5

    By InsaneMultitasker, September 3, 2020
    • 116 replies
    • 5.9k views
    • 
    • InsaneMultitasker
    • Sunday at 08:57 PM

18. Official TI99 GSIM (Pizza Box) Cartridge Dongle

    By Gary from OPA, Saturday at 05:56 PM
    • 3 replies
    • 142 views
    • 
    • Ksarul
    • Sunday at 05:14 AM

19. Breadboard or PC Board?

    By Kchula-Rrit, Saturday at 02:36 AM
    • 15 replies
    • 190 views
    • 
    • FarmerPotato
    • Sunday at 01:44 AM

20. Assembly on the 99/4A 1 2 3 4 91

    By matthew180, May 12, 2010
    • 2.3k replies
    • 134.7k views
    • 
    • hhos
    • Saturday at 10:06 AM

21. 3D printed TI99 VGA port for F18A

    By dphirschler, March 17   

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

22. RELEASE: 3D String Art v1.0 & Graphics Demo v9938/58 (1988/1990) by Oasis Pensive Abacutors / GARYOPA

    By Gary from OPA, April 12
    • 10 replies
    • 245 views
    • 
    • Gary from OPA
    • Friday at 07:41 PM

23. Self Learning Kicad as I design a FDC/IO card 1 2

    By RickyDean, October 31, 2023
    • 38 replies
    • 1.1k views
    • 
    • matthew180
    • Friday at 05:49 PM

24. Pascal on the 99/4A 1 2 3 4 38

    By apersson850, January 27, 2012   

    • pascal
    • p-system
    • 932 replies
    • 49k views
    • 
    • apersson850
    • Friday at 06:57 AM

25. Camel99 Forth Information goes here 1 2 3 4 70

    By TheBF, January 3, 2018   

    • Camel99
    • Forth
    • (and 2 more)

      Tagged with:

      • Camel99
      • Forth
      • Concatentive Programming
      • ANS Forth
    • 1.7k replies
    • 73.6k views
    • 
    • TheBF
    • April 11

26. TI Adventure Gaming

    By MikeV, April 8   

    • adventure
    • rxb
    • (and 1 more)

      Tagged with:

      • adventure
      • rxb
      • sams
    • 2 replies
    • 179 views
    • 
    • MikeV
    • April 11

27. What is the purpose of the PERMANENT parameter specification in a sub?

    By jschultzpedersen, April 5
    • 22 replies
    • 419 views
    • 
    • FarmerPotato
    • April 10

28. Alex Kidd on Miracle Island - Playable Demo 1 2 3 4 6

    By TheMole, October 13, 2015
    • 135 replies
    • 12.9k views
    • 
    • arcadeshopper
    • April 10

29. Request for PALASM Guru

    By Kchula-Rrit, April 8   

    • gal
    • pal
    • (and 1 more)

      Tagged with:

      • gal
      • pal
      • palasm
    • 4 replies
    • 138 views
    • 
    • Kchula-Rrit
    • April 9

30. New Tunnels of Doom engine? 1 2

    By adamantyr, March 22
    • 42 replies
    • 1.3k views
    • 
    • adamantyr
    • April 6

31. Horizon RAMdisk ROS and CFG Development 1 2 3 4 23

    By InsaneMultitasker, March 2, 2014   

    • ros
    • cfg
    • (and 1 more)

      Tagged with:

      • ros
      • cfg
      • ramdisk
    • 553 replies
    • 37.5k views
    • 
    • Gary from OPA
    • April 6

32. How to test for 32K memory expansion in TMS9900 assembly?

    By adamantyr, April 3
    • 8 replies
    • 222 views
    • 
    • apersson850
    • April 5

33. Inexpensive way to try out GALs? 1 2

    By Kchula-Rrit, March 9   

    • programmable logic devices
    • 27 replies
    • 581 views
    • 
    • Kchula-Rrit
    • April 5

34. Help Me Find This Component

    By FarmerPotato, April 1
    • 12 replies
    • 288 views
    • 
    • FarmerPotato
    • April 4

35. RXB - Rich Extended Basic 1 2 3 4 65

    By Bones-69, May 26, 2010
    • 1.6k replies
    • 116.2k views
    • 
    • MikeV
    • April 4

36. xdt99: New TI 99 cross-development tools available 1 2 3 4 27

    By ralphb, January 11, 2015
    • 669 replies
    • 48.7k views
    • 
    • RXB
    • April 4

37. TIPI - TI-99/4A to Raspberry PI interface development 1 2 3 4 62

    By jedimatt42, May 2, 2017
    • 1.5k replies
    • 98.8k views
    • 
    • jedimatt42
    • April 2

38. Floppy Formatter from code, questions...

    By jedimatt42, March 31
    • 9 replies
    • 257 views
    • 
    • apersson850
    • April 2

39. New emulator - BuLWiP 1 2

    By PeteE, February 28, 2023
    • 41 replies
    • 2.9k views
    • 
    • PeteE
    • April 1

40. GCC for the TI 1 2 3 4 46

    By insomnia, June 10, 2010
    • 1.1k replies
    • 90.3k views
    • 
    • khanivore
    • April 1

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

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

42. 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
    • 13.1k views
    • 
    • Gary from OPA
    • March 30

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

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

44. The Joel Test for Software Development

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

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

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

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

    By Lee Stewart, September 20, 2023   

    • assembly
    • assembler
    • 85 replies
    • 2.6k views
    • 
    • TheBF
    • March 22

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

    By Nelno, April 27, 2021
    • 34 replies
    • 4.9k views
    • 
    • Kchula-Rrit
    • March 21

48. BLWP?

    By Krool885, March 15
    • 12 replies
    • 331 views
    • 
    • apersson850
    • March 20

49. Ghostbusters - Development Diary 1 2 3 4 11

    By TheMole, June 12, 2023
    • 263 replies
    • 11.4k views
    • 
    • TheMole
    • March 19

50. The TMS9900 Cheat-Sheet 1 2

    By SteveB, January 7
    • 27 replies
    • 1.1k views
    • 
    • TheBF
    • March 19