A replacement for the classic TMS9918A/TMS9929A VDP, powered by a Raspberry Pi Pico

Classic99 TI-99/4A Emulator for Windows, QI3xx series

Various documents for the TMS9918 VDP

TMS9918A emulator library (C99)

GCC Library for the TI-99/4A

Converter for the TMS9918A's bitmap mode, and F18A enhanced bitmap modes.

Decode, parse, compress and playback 8-bit chiptunes for SN, AY and SID. Supports VGM, MOD, and a few other inputs, and has tools for manipulating and preparing data for compression. Command-line tools.

Camel Forth for the TI-99

PS/2 Keyboard Adapter for the TI-99/4A (AVR). Extremely low part count - just the AVR, a clock, and connecting wires.

Node Webkit frontend for the js99er TI-99/4A (ti99/4a) emulator.

Texas Instruments multicart menu program

Tool to improve the quality of TI videos

This is an updater for the F18A for the TI-99/4A. It has been written so that all the heavy lifting happens on the GPU, meaning a host system need only provide a minimal file load mechanism in order to port it.

TI-99/4A GROM memory chip simulator with peripherals for AVR

Cartridge images to test all pages of various sized TI cartridges.

Classic99 v4xx Work-In-Progress

Audio packer for TI and Coleco

Texin's TI ToolBox - a disk editor I was working on back in 1989

A little tool to add in relocating TI-99/4A GROM programs to another address.

Set of scripts that convert a video for playback on the TI-99/4A. See below.