TI-99/4A Development

2,812 topics in this forum

1. TI-99 DIY Sidecar?

   By LouisB, February 13, 2022
   • 14 replies
   • 1.2k views
   • 
   • Stuart
   • May 29

2. Boot and Menu development 1 2

   By InsaneMultitasker, February 18, 2020   

   • boot
   • menu
   • (and 1 more)

     Tagged with:

     • boot
     • menu
     • 9640 menu
   • 44 replies
   • 2.5k views
   • 
   • rgjt
   • May 22

3. Have you seen this video?

   By RXB, March 1   

   • 9958
   • msx
   • 19 replies
   • 961 views
   • 
   • Gary from OPA
   • May 22

4. Forth Source of Speech Education Module

   By FarmerPotato, May 13
   • 11 replies
   • 397 views
   • 
   • FarmerPotato
   • May 21

5. F18A programming, info, and resources 1 2 3 4 31

   By matthew180, January 14, 2013   

   • f18a
   • fpga
   • (and 8 more)

     Tagged with:

     • f18a
     • fpga
     • vdp
     • 9918a
     • 9928
     • video
     • hardware
     • mods
     • upgrade
     • updates
   • 773 replies
   • 68.8k views
   • 
   • Tursi
   • May 21

6. Are CMOS RAMs noisy?

   By Nessus, May 20
   • 10 replies
   • 318 views
   • 
   • bent_pin
   • May 21

7. TIPI in a Speech Synthesizer Housing? 1 2 3 4 6

   By J-Data, March 26, 2020
   • 128 replies
   • 9.7k views
   • 
   • kneehighspy
   • May 21

8. Dynamic Memory Management Library for Assembly Language Programs

   By bjkrug, May 19   

   • assembly language
   • 0 replies
   • 156 views
   • 
   • bjkrug
   • May 19

9. TI/Kaal Assembler Out-of-Range" error...

   By Kchula-Rrit, May 16
   • 3 replies
   • 194 views
   • 
   • Kchula-Rrit
   • May 16

10. Playground 1 2 3 4 8

    By senior_falcon, November 22, 2013
    • 185 replies
    • 24.3k views
    • 
    • kommissar
    • May 15

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

    By Gary from OPA, May 9
    • 8 replies
    • 303 views
    • 
    • Gary from OPA
    • May 10

12. XB3 Cartridge EPROMs 1 2

    By adamantyr, April 27
    • 36 replies
    • 1.1k views
    • 
    • RXB
    • May 10

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

    By Lee Stewart, April 23   

    • prng
    • randomize
    • (and 1 more)

      Tagged with:

      • prng
      • randomize
      • xb
    • 23 replies
    • 924 views
    • 
    • Lee Stewart
    • May 10

14. F18A Karts demo 1 2

    By Asmusr, April 26
    • 39 replies
    • 1.3k views
    • 
    • Tursi
    • May 8

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

    By Gary from OPA, May 8
    • 5 replies
    • 339 views
    • 
    • Gary from OPA
    • May 8

16. Byte Magazine Sieve Benchmark 1 2 3 4 5

    By TheBF, April 22, 2022
    • 118 replies
    • 5.8k views
    • 
    • senior_falcon
    • May 8

17. Machine Forth OMG 1 2 3 4 7

    By TheBF, March 10, 2017   

    • FORTH
    • 150 replies
    • 10.7k views
    • 
    • TheBF
    • May 7

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

    By Bones-69, May 26, 2010
    • 1.6k replies
    • 124.9k views
    • 
    • senior_falcon
    • May 6

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

    By sometimes99er, October 17, 2011   

    • game
    • assembler
    • (and 1 more)

      Tagged with:

      • game
      • assembler
      • cartridge
    • 138 replies
    • 19.7k views
    • 
    • FarmerPotato
    • May 5

20. Can BASIC auto-run a startup program?

    By Kchula-Rrit, May 4
    • 5 replies
    • 258 views
    • 
    • Gary from OPA
    • May 4

21. The FinalGROM 99 1 2 3 4 32

    By ralphb, January 10, 2017
    • 786 replies
    • 87.3k views
    • 
    • fabrizio
    • May 4

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

    By Gary from OPA, May 4
    • 0 replies
    • 164 views
    • 
    • Gary from OPA
    • May 4

23. xbii Research on Myarc Extended Basic II 1 2

    By retroclouds, June 28, 2020   

    • myarc
    • memexp1
    • (and 4 more)

      Tagged with:

      • myarc
      • memexp1
      • sams
      • hrd4000b
      • 99/8
      • armadillo basic
    • 48 replies
    • 2.6k views
    • 
    • RXB
    • May 3

24. RXB SAMS ONLY

    By RXB, March 8
    • 21 replies
    • 607 views
    • 
    • RXB
    • May 3

25. Marinchip software stack and OS

    By pnr, April 28
    • 4 replies
    • 394 views
    • 
    • ccport
    • May 1

26. My ROM/RAM Cartridge Idea

    By Kchula-Rrit, February 28   

    • cartridge
    • 20 replies
    • 674 views
    • 
    • Kchula-Rrit
    • May 1

27. Keyboard/Joystick conflict

    By Tursi, April 27
    • 17 replies
    • 472 views
    • 
    • FALCOR4
    • April 29

28. Llama3 and Code Gen

    By Tursi, April 24
    • 1 reply
    • 185 views
    • 
    • Tursi
    • April 24

29. GCHAR equivalent in UCSD Pascal?

    By LarryFromBuffalo, April 12
    • 19 replies
    • 663 views
    • 
    • OLD CS1
    • April 23

30. Another "Bad Apple" demo 1 2 3

    By Eric Lafortune, July 31, 2022
    • 73 replies
    • 3.9k views
    • 
    • Eric Lafortune
    • April 22

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

    By Gary from OPA, April 16
    • 2 replies
    • 254 views
    • 
    • Gary from OPA
    • April 20

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

    By InsaneMultitasker, September 3, 2020
    • 120 replies
    • 6.7k views
    • 
    • arcadeshopper
    • April 20

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

    By ruthven, March 17
    • 50 replies
    • 1.7k views
    • 
    • Tursi
    • April 18

34. Code Conventions for Bank-Switched Cartridges?

    By Kchula-Rrit, April 13   

    • cartridge
    • guidry
    • (and 1 more)

      Tagged with:

      • cartridge
      • guidry
      • rom
    • 18 replies
    • 497 views
    • 
    • OLD CS1
    • April 16

35. Problems with SLCOMPILER

    By Cheung, April 10
    • 10 replies
    • 409 views
    • 
    • Cheung
    • April 15

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

    By Gary from OPA, April 14
    • 1 reply
    • 243 views
    • 
    • Gary from OPA
    • April 15

37. Official TI99 GSIM (Pizza Box) Cartridge Dongle

    By Gary from OPA, April 13
    • 3 replies
    • 211 views
    • 
    • Ksarul
    • April 14

38. Breadboard or PC Board?

    By Kchula-Rrit, April 13
    • 15 replies
    • 332 views
    • 
    • FarmerPotato
    • April 14

39. 3D printed TI99 VGA port for F18A

    By dphirschler, March 17   

    • vga
    • f18a
    • 15 replies
    • 585 views
    • 
    • dphirschler
    • April 12

40. 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
    • 459 views
    • 
    • Gary from OPA
    • April 12

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

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

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

    By TheMole, October 13, 2015
    • 135 replies
    • 13.8k views
    • 
    • arcadeshopper
    • April 10

43. Request for PALASM Guru

    By Kchula-Rrit, April 8   

    • gal
    • pal
    • (and 1 more)

      Tagged with:

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

44. 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
    • 41k views
    • 
    • Gary from OPA
    • April 6

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

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

46. Inexpensive way to try out GALs? 1 2

    By Kchula-Rrit, March 9   

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

47. Help Me Find This Component

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

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

    By ralphb, January 11, 2015
    • 669 replies
    • 52.8k views
    • 
    • RXB
    • April 4

49. Floppy Formatter from code, questions...

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

50. New emulator - BuLWiP 1 2

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