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TI-99/4A Development

Software and hardware development for the TI-99/4A Computer.

2,765 topics in this forum

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

    By atrax27407,
    • 367 replies
    • 39.4k views

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

    By retroclouds,   
    • 444 replies
    • 141.1k views

  3. Pascal on the 99/4A 1 2 3 4 39

    By apersson850,   
    • 973 replies
    • 50.8k views

  4. Pi Pico[W] Peripheral Expansion Box Side Port Device 1 2 3 4 16

    By JasonACT,
    • 396 replies
    • 10.3k views

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

    By visrealm,   
    • 46 replies
    • 1.4k views

  6. StrangeCart 1 2 3 4 19

    By speccery,
    • 455 replies
    • 27.8k views

  7. TI Mini Expansion System 1 2 3 4 7

    By Artoj,   
    • 161 replies
    • 8.7k views

  8. RELEASE: Digi-Port (Audio-Byte) Sound Player v1.03 BETA by OPA & WHTech

    By Gary from OPA,
    • 8 replies
    • 175 views

  9. Would anyone be interested in working on another mega demo?

    By Asmusr,
    • 15 replies
    • 313 views

  10. XB3 Cartridge EPROMs 1 2

    By adamantyr,
    • 36 replies
    • 807 views

  11. XB PseudoRandom Number Generator Discussion—RND and RANDOMIZE...updated 09MAY2024

    By Lee Stewart,   
    • 23 replies
    • 666 views

  12. TF, camel, FB Forth fun 1 2 3 4 9

    By GDMike,
    • 210 replies
    • 6.2k views

  13. Assembly on the 99/4A 1 2 3 4 95

    By matthew180,
    • 2.4k replies
    • 139.5k views

  14. F18A Karts demo 1 2

    By Asmusr,
    • 39 replies
    • 904 views

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

    By TheBF,   
    • 1.7k replies
    • 74.9k views

  16. RELEASE: Saturday Night Bingo by 9T9 Assembly Sig

    By Gary from OPA,
    • 5 replies
    • 172 views

  17. Byte Magazine Sieve Benchmark 1 2 3 4 5

    By TheBF,
    • 118 replies
    • 5k views

  18. AI Based TI-99 Development is a thing! 1 2

    By unhuman,
    • 35 replies
    • 814 views

  19. fbForth—TI Forth with File-based Block I/O [Post #1 UPDATED: 06/09/2023] 1 2 3 4 81

    By Lee Stewart,   
    • 2k replies
    • 112.2k views

  20. Machine Forth OMG 1 2 3 4 7

    By TheBF,   
    • 150 replies
    • 9.5k views

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

    By Bones-69,
    • 1.6k replies
    • 117.5k views

  22. TIPI - TI-99/4A to Raspberry PI interface development 1 2 3 4 63

    By jedimatt42,
    • 1.6k replies
    • 100.9k views

  23. Restless II - game released 1 2 3 4 6

    By sometimes99er,   
    • 138 replies
    • 18.6k views

  24. RELEASE: GIF 99 Viewer for V9938/58 Systems v1.05 by O.P.A. 1 2

    By Gary from OPA,
    • 39 replies
    • 616 views

  25. Can BASIC auto-run a startup program?

    By Kchula-Rrit,
    • 5 replies
    • 168 views

  26. The FinalGROM 99 1 2 3 4 32

    By ralphb,
    • 786 replies
    • 82.2k views

  27. RELEASE: Canada Mortgage and Loan Amortization Program v1.00 by 9T9 Assembly Sig via GaryOPA

    By Gary from OPA,
    • 0 replies
    • 99 views

  28. Research on Myarc Extended Basic II 1 2

    By retroclouds,   
    • 48 replies
    • 2.2k views

  29. RXB SAMS ONLY

    By RXB,
    • 21 replies
    • 430 views

  30. New SCSI card 1 2

    By Shift838,
    • 44 replies
    • 871 views

  31. Marinchip software stack and OS

    By pnr,
    • 4 replies
    • 266 views

  32. My ROM/RAM Cartridge Idea

    By Kchula-Rrit,   
    • 20 replies
    • 481 views

  33. Nano PEB Source Files Released

    By Shift838,
    • 11 replies
    • 354 views

  34. Keyboard/Joystick conflict

    By Tursi,
    • 17 replies
    • 306 views

  35. Geneve OS development discussion 1 2 3 4 27

    By InsaneMultitasker,   
    • 666 replies
    • 27.9k views

  36. Llama3 and Code Gen

    By Tursi,
    • 1 reply
    • 116 views

  37. GCHAR equivalent in UCSD Pascal?

    By LarryFromBuffalo,
    • 19 replies
    • 512 views

  38. Another "Bad Apple" demo 1 2 3

    By Eric Lafortune,
    • 73 replies
    • 3.4k views

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

    By Gary from OPA,
    • 2 replies
    • 168 views

  40. What if? Designing "Geneve 2020". Cool 3D views! 1 2 3 4 21

    By FarmerPotato,
    • 517 replies
    • 29.2k views

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

    By InsaneMultitasker,
    • 120 replies
    • 6.2k views

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

    By ruthven,
    • 50 replies
    • 1.2k views

  43. Code Conventions for Bank-Switched Cartridges?

    By Kchula-Rrit,   
    • 18 replies
    • 380 views

  44. Problems with SLCOMPILER

    By Cheung,
    • 10 replies
    • 330 views

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

    By Gary from OPA,
    • 1 reply
    • 183 views

  46. Official TI99 GSIM (Pizza Box) Cartridge Dongle

    By Gary from OPA,
    • 3 replies
    • 165 views

  47. Breadboard or PC Board?

    By Kchula-Rrit,
    • 15 replies
    • 212 views

  48. 3D printed TI99 VGA port for F18A

    By dphirschler,   
    • 15 replies
    • 465 views

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

    By Gary from OPA,
    • 10 replies
    • 280 views

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

    By RickyDean,
    • 38 replies
    • 1.2k views
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