*bump* If anyone is curious how this works, I've written a fairly thorough explanation, from a high-level system overview down to a walkthrough of executing a DJNZ instruction.

http://www.cemetech.net/projects/item.php?id=42#s2

LuaZM is a standard port of linear Lua, not event-based. You can find more information on LuaZM at http://www.cemetech.net/news.php?id=527 and http://prizm.cemetech.net/index.php?title=LuaZM_Reference .

Long have I enjoyed offline graphing calculator emulators like Virtual TI, TiLeM, and WabbitEmu. The ability to run a TI-83 Plus or TI-84 Plus calculator on a computer is invaluable for math classes and programming, and I have seen more than a few teachers showing calculator skill in class with a projector and an emulator. However, installing an offline calculator emulator is often not feasible, and many popular emulators run only on Windows, not on Linux or Mac OS. To bring you a graphing calculator you can run on any platform with a web browser, I am proud to introduce jsTIfied 1.0.

jsTIfied is an online graphing calculator emulator, emulating the TI-83 Plus, TI-83 Plus Silver Edition, TI-84 Plus, and TI-84 Plus Silver Edition. It runs entirely in your browser using HTML5 and Javascript, so it requires neither Java nor Flash. For legal reasons, you must load your own ROM image, which is stored in your browser and never sent to the Cemetech server. As a full calculator emulator, it offers lots of features:

:: Full TI-83+/TI-84+ emulation including accurate LCD physics for good-looking grayscale
:: Runs on all major browsers and operating systems
:: Can take animated and still screenshots
:: Load any .8xp, .8xk, etc program or App to test it
:: Drag calculator files onto the jsTIfied LCD to import them
:: Can export all files from the emulated calculator
:: Integrated with the SourceCoder TI-BASIC IDE/editor, so that you can write programs in SourceCoder and immediately test them on a calculator
:: Built-in debugger and CPU/memory view for assembly programmers

I could go on and on about the thirteen months of optimization and development that made this project possible, but I'd rather you just get started using jsTIfied as soon as possible. Simply grab your calculator's ROM image (and be aware that many believe it is illegal to download ROMs from Google if you don't own the calculator) and load it into jsTIfied to get started. (Free and fast) registration is mandatory to use jsTIfied only to prevent abuse. Whether you're a student using jsTIfied for math, a teacher using it in a demonstration, or a programmer using jsTIfied to test a project, I hope you enjoy it.

Get Started with jsTIfied
jsTIfied online graphing calculator emulator
"Like" jsTIfied on Facebook

DJ: No, it's not quite as up-to-date, but I'll make a note of that. Thanks for catching it! I don't think that error is in the print book, but I will double-check.

Adriweb: Yes, both Omnimaga and TI-Planet are offered as forum options in Appendix C, especially with regards to their Nspire work. I'd be happy to sign one for you and then ship it to you if you had it shipped to me; PM me.

Xeda, perhaps you can ask them to order it?

DJ_O: Is that a Canadian book chain?

Also, to our French compatriots, I have the ball rolling on a French translation. If you are interested in helping with the project, or have chatted with any French publishers in the past so we can explore all our options, I'd be very interested in chatting privately.

Cool stuff. Interesting to see that there are a lot of French people who want to learn TI-BASIC. Tangentially related, my publisher has been looking for a French publisher who would be interested in publishing a translation of my 350-page TI-BASIC book that I worked on for the past year and is just coming out in stores this week or so ("Programming the TI-83 Plus/TI-84 Plus"), so if anyone does happen to know a publisher they could get in touch with, that would continue to boost the graphing calculator community. I had a couple of our French members on it, but they didn't uncover any good leads.

Early in 2012, I announced jsTIfied, an emulated TI-83 Plus graphing calculator in your browser. Built entirely in Javascript, CSS, and HTML and avoiding the legal pitfalls of a calculator's OS leaving its owner's computer, jsTIfied completely duplicated the functionality of your favorite TI-83+ calculator. You can perform calculations, plot graphs, test programs, and write your own projects. Over the summer, I integrated jsTIfied with the eminent SourceCoder online TI-BASIC editor to allow you to more easily create, test, and publish graphing calculator programs without needing anything besides a web browser. Hardware-wise, the TI-83 Plus is the easiest of the TI-83+/TI-84+ series to emulate, so it was with trepidation that I approached the oft-repeated suggestion that I add TI-84 Plus, TI-84 Plus Silver Edition, and TI-83 Plus Silver Edition support to jsTIfied.

I am happy to announce that after a long weekend of coding, testing, and poring over documentation, I have gotten the first bits of TI-83+SE, TI-84+, and TI-84+SE support in jsTIfied functioning. Thanks to the generous Buckeye and the WabbitEmu project, jsTIfied will display one of four spiffy, high-resolution skins matching the calculator version of the ROM you load. It emulates the extra Flash and RAM (the full 128KB!) of the newer graphing calculators, properly implements features like the realtime clock ports, and much more. However, the new support is still very beta, so a few features are known to be missing. Loading apps and programs to the new models does not yet work, Link Assist is a work-in-progress, and the crystal-based Timer0/Timer1/Timer2 are incompletely implemented. However, I'm making swift strides in adding these new features, so by the time you test jsTIfied some of those issues may be fixed.

I urge you to load up jsTIfied and give it a try. Please be sure to tell me about any bugs you encounter (other than the ones I mentioned), and mention any suggestions to make the emulator more useable. Please also tell your teachers and friends about it, so that they will avoid the pitfall many of my teachers fell into in struggling with the ancient and now-supplanted VTI emulator.

Use the jsTIfied online TI-83 Plus/TI-84 Plus graphing calculator emulator

The programming language Lua has been around for fifteen years, and has recently gained significant traction as an introductory scripting language. As I mentioned when I first announced the LuaZM project, the TI-Nspire CX has had Lua for about a year now, Texas Instruments' uneasy relationship with hobbyist programmers notwithstanding. I'm proud to release the first beta of LuaZM to the public, along with documentation on the current features of the core program and its included libraries. Create your own .lua programs, then use LuaZM's handy graphical file browser to select a program and run it. LuaZM also includes a command line where you can test out commands and functions. LuaZM is a semi-port of Lua 5.2.1. Please try out this beta, give me feedback, and start publishing your own Prizm Lua programs! Compatibility layers for Nspire and LuaFX programs may be coming soon. Special thanks go to Juju and AHelper for the PrizmIO console library and the File Browser GUI respectively.

Download & Read More
LuaZM v0.1 - Casio Prizm Lua Interpreter
LuaZM reference documentation

Edit: The current download is v0.1.1, which fixes zmg.keyMenu(), optimizes zmg.keyMenuFast(), and adds zmg.makeColor().

Release Candidate 2 is here! RC2 adds many bug and stability fixes, a toggle-able bounding box and axes, another graph color mode, and several useability improvements. Give it a download and try it today; this will surely become an permanent fixture on your Casio Prizm. The full list of fixes:

:: Added 'pi' constant, typed with [2nd][EXP]
:: Added poweroff from equation editor and graph view
:: Added toggle-able axes and bounding box
:: Added a third graph color mode
:: Inverted initial rotation so that graphs start the correct way up
:: Graph color mode, axis settings, and background color are now saved between sessions, just like the equations and window settings.
:: Fixed bug in line-clipping routine when both endpoints of a line are offscreen but part of the line is onscreen
:: Fixed several crash-causing bugs in gCAS2 computer-algebra system, including crashes with equations like "function()+" and "function(3+)"
:: Many other fixes and useability tweaks.

Thanks to all the users who gave me feedback and suggestions, including but certainly not limited to glb08ma, Deep Thought, flyingfisch, _player1537, ruler501, and others.

Download
Graph3DP 1.0 Release Candidate 2