Yes, there are a couple good tutorials about TI-ASM for the TI-83 (fyi, the TI-83 and 84 are exactly the same when it comes to programming). But be warned, assembly is a huge step up from Ti-BASIC and much harder to learn. You also have to write assembly programs on a computer, not on the calculator. Here are some tutorials to help you get started:

http://www.arasian.com/index.php?page=support/education/tutorial&t=2

http://www.ticalc.org/archives/news/articles/3/30/30482.html

Here's another useful link to a program from TI that you can download to emulate a calculator. This is very useful to test programs with because an assembly program is very powerful and can completely crash your calc if it's written incorrectly. If you test it with this program and it crashes the virtual calc, you know something's wrong.

http://education.ti.com/educationportal/sites/US/productDetail/us_sdk_73_83_84.html

Hope this helps.

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