About thirteen years ago, I started writing Doors CS, then known as Doors XP. It started as a list of programs drawn onto the graphscreen with TI-BASIC, and gradually evolved into the full-featured shell it is today, used on hundreds of thousands of TI-83 Plus and TI-84 Plus graphing calculators. It evolved from a TI-83 BASIC program to a TI-83 Plus/TI-84 Plus ASM program to an App. It has engendered accolades, criticism, and controversy, and Doors CS and its features have been featured on ticalc.org, Hackaday, Gizmodo, and others. Today, it is with bittersweet pride that I bring the final chapter of Doors CS for the TI-83 Plus/TI-84 Plus to a close by releasing Doors CS 7.2.
Doors CS 7.2 is the ultimate shell and GUI for your TI graphing calculator. It can run any BASIC or ASM program or game, including MirageOS, Ion, Doors CS, and nostub programs. Organize your programs into nested folders, lock, rename, copy, archive, hide, and edit programs directly from Doors CS, or use the HomeRun feature to run any program from the TI-OS homescreen. Doors CS is built to be extremely user-friendly, using a mouse-based interface to appeal to users accustomed to using computers. On the opposite end of the user spectrum, it includes myriad keyboard shortcuts so that those who prefer to use a keyboard rather than a mouse can quickly and efficiently move through Doors CS. The Associated Program feature lets you click on any file, like game levels, documents, pictures, and songs, and have them automatically open with the correct viewer program. Doors CS 7.2 builds in the CALCnet2.2 networking library for communication and multiplayer gaming between two, twenty, or two billion calculators, as well as many bug fixes and tweaks since Doors CS 7.1. It contains full libraries for xLIB, Celtic III, PicArc, Omnicalc, and the new DCSB Libs; TI-BASIC programmers can now even use CALCnet.
I want to especially thank all of you in the community, from the Cemetech administrators who helped me stay motivated on Doors CS, to the beta-testers and coders who contributed their time and effort. I even want to thank the seasoned community members who scoffed at some young upstart boasting about his as-yet nonexistent shell so many years ago, whose skepticism pushed Doors CS from two marble notebook full of half-working assembly code into the rock-solid, widely-used software that it is today. I look forward to the next decade-long project that I'll find myself embroiled in. As for you, download Doors CS 7.2 today and experience the full power of your calculator!