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

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

TMS9918A emulator library (C99)

Various documents for the TMS9918 VDP

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.

Classic99 v4xx Work-In-Progress

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.

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

Texas Instruments multicart menu program

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.

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

Tool to improve the quality of TI videos

Port of Minestorm to the TI-99/4A and ColecoVision

Images of floppies and other media I encounter and acquire in the course of the retrocomputing hobby.

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

Hacky little tool to go from TI object files to binaries (and vice versa)