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TI-99/4A Development

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

2,582 topics in this forum

  1. RS-232 on TI BASIC or assembly

    By theincrediblepeep,
    • 3 replies
    • 164 views

  2. Hell's Heart - In-Progress Intro Teaser - Sequel to Hell's Halls (TI Console BASIC, 16K, Cassette, TE2 Optional)

    By pixelpedant,
    • 3 replies
    • 320 views

  3. Merry Christmas! (a demo?) My first basic code since I was 11 years old

    By jorge-1987,
    • 9 replies
    • 235 views

  4. Tips for mixing assembly with XB 1 2 3 4

    By retrodroid,
    • 96 replies
    • 2.2k views

  5. Bank Switching 1 2

    By Sergioz82,
    • 28 replies
    • 546 views

  6. Best Way(s) to Move a Game Character in TI BASIC (not Extended BASIC) without CALL CLEAR 1 2

    By zacharyfruhling,
    • 42 replies
    • 973 views

  7. TI Basic memory

    By Bones-69,
    • 15 replies
    • 290 views

  8. fbForth—TI Forth with File-based Block I/O [Post #1 UPDATED: 04/13/2021] 1 2 3 4 73

    By Lee Stewart,   
    • 1.8k replies
    • 95.6k views

  9. Supernotes 1 2 3 4 56

    By GDMike,
    • 1.4k replies
    • 40.4k views

  10. Amazing Graphics on a Pixel Budget

    By dhe,
    • 0 replies
    • 139 views

  11. The Gram Kracker mega thread 1 2 3 4 6

    By acadiel,
    • 138 replies
    • 10.8k views

  12. The TI-99/4A Operating System 1 2

    By Lee Stewart,   
    • 31 replies
    • 5.1k views

  13. TI(ny)-99/4A Computer 1 2 3 4 13

    By fabrice montupet,
    • 314 replies
    • 34.5k views

  14. Looking for tips getting Camel Forth loaded

    By Kehvarl,
    • 8 replies
    • 191 views

  15. Differences betweeen UCSD Pascal on the TI-99/4a compared to TI-99/8

    By retroclouds,
    • 9 replies
    • 397 views

  16. Routines for binary and hex in basic

    By jchase1970,
    • 1 reply
    • 113 views

  17. Subkiller - new TI BASIC game 1 2

    By Retrospect,
    • 34 replies
    • 1.1k views

  18. SIDBlaster and MIDIMaster

    By dhe,
    • 5 replies
    • 243 views

  19. RXB SAMS Game (In the Dark) 1 2 3

    By RXB,   
    • 52 replies
    • 4.7k views

  20. Classic99 with XB crashes with CPU Overdrive

    By SteveB,
    • 8 replies
    • 243 views

  21. Pascal on the 99/4A 1 2 3 4 19

    By apersson850,   
    • 456 replies
    • 32.8k views

  22. Horizon / Asgard / Crystal Software Mouse

    By dhe,
    • 1 reply
    • 119 views

  23. 838-Bus Mouse Adapter

    By Shift838,
    • 11 replies
    • 478 views

  24. TI99/4A Motherboard Replacement (In Progress) 1 2 3 4 5

    By rkrenicki,
    • 108 replies
    • 8.6k views

  25. XB compiler problems w/ JUWELL99

    By retrodroid,
    • 4 replies
    • 152 views

  26. BLWP vs BL 1 2 3

    By Willsy,
    • 55 replies
    • 1k views

  27. Blockbuster - game released 1 2 3 4

    By sometimes99er,   
    • 88 replies
    • 8.4k views

  28. OoeyGUI Development Discussion

    By Shift838,
    • 16 replies
    • 431 views

  29. StrangeCart 1 2 3 4 16

    By speccery,
    • 393 replies
    • 20k views

  30. TI99/4A and vector graphics 1 2 3 4

    By whoami999ster,
    • 84 replies
    • 3.1k views

  31. Machine Forth OMG 1 2 3 4 6

    By TheBF,   
    • 134 replies
    • 6.8k views

  32. The FinalGROM 99 1 2 3 4 31

    By ralphb,
    • 759 replies
    • 70.9k views

  33. F18A with C99?

    By Shift838,
    • 1 reply
    • 118 views

  34. T80XB Programming help

    By Shift838,
    • 5 replies
    • 171 views

  35. Introducing Structured Extended BASIC and TiCodEd 1 2 3 4 9

    By SteveB,
    • 200 replies
    • 8.9k views

  36. TIPI in a Speech Synthesizer Housing? 1 2 3 4 5

    By J-Data,
    • 119 replies
    • 6.3k views

  37. Trying to understand DMA on a 4A.

    By dhe,
    • 11 replies
    • 326 views

  38. Here it is my 10 lines Extended Basic collection :)

    By rocky007,
    • 21 replies
    • 598 views

  39. SDD 99 1 2 3 4 9

    By ralphb,   
    • 213 replies
    • 19k views

  40. CALL LOAD for data 1 2

    By SteveB,
    • 30 replies
    • 486 views

  41. Which is faster?

    By Retrospect,
    • 14 replies
    • 465 views

  42. 9938 High Speed Block Move

    By 9640News,
    • 23 replies
    • 389 views

  43. Assembly "Pixel Plot" in multicolor mode

    By Reciprocating Bill,
    • 8 replies
    • 349 views

  44. The joy of sticks. 1 2

    By Retrospect,
    • 28 replies
    • 730 views

  45. SRL vs SWPB: moving one byte into LSB

    By FarmerPotato,
    • 12 replies
    • 316 views

  46. Joystick + Alpha-Lock where is the path to ground?

    By matthew180,
    • 24 replies
    • 530 views

  47. files format 1 2 3

    By rocky007,
    • 57 replies
    • 6k views

  48. TMS9900 Application Sheet

    By dhe,
    • 4 replies
    • 178 views

  49. OPERATION SEA WOLF - BY MARK HANKINS

    By oddemann,   
    • 9 replies
    • 327 views

  50. Can you help me with ASM? 1 2 3 4 6

    By Sergioz82,
    • 145 replies
    • 4.4k views
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