For those who want a jumpstart on how to use FreeBASIC:
http://www.freebasic.net/wiki/wikka.php?wakka=TutGettingStartedQBhttp://www.freebasic.net/wiki/wikka.php?wakka=TutHowToProgGame1I only read those two to make my port from TI-Basic to Freebasic.
The first link shows how to output text, draw lines,draw circles, rectangles.
The second one is more interesting. It shows you how to create a game loop by moving a circle.
It'll introduce you to FB's "GetKey", "ClrHome", loops and the declaration of variables.
They don't take long to read either, it's great!
Look at this page to get a quick peek at all the commands:
http://www.freebasic.net/wiki/wikka.php?wakka=CatPgFullIndexHmm, some of it reminds me Casio calculators...
If it's similar to TI-BASIC and Casio BASIC, maybe I could learn it easily 
Well that's the beauty of it. It may not have the exactly same syntax but It certainly does "feel" like TI-Basic.
I'm really developing to become a FreeBASIC fanboy now.
You could also "setup" FreeBASIC to behave alot more like TI-Basic on the calculator.
Here's a quick tutorial:
NOTE: You can get alot of this out of the previously mentioned tutorials too.
If you add the following line to the top of your FreeBASIC source, you get a 16x8 character screen like the one on your calc.
screenres 136,72If you add these lines to the top you can use the very responsive GetKey from FB(there's also a slower one):
#include "fbgfx.bi"
Using FBThe very responsive GetKey works just like in Axe
MultiKey(SC_KEY)If you want to use certain variables you have to declare them.
You're probably not used to this in TI-Basic but it's standard fare in computer languages.
DIM as integer A,B,C
DIM as string Str1,Str2It's pretty straightforward. Here's a link to the datatypes.
http://www.freebasic.net/wiki/wikka.php?wakka=CatPgStdDataTypesIf you want to store variables:
A=10
str1="abc"
The pause command in TI-Basic becomes
SleepIf you want to pause for 100 milliseconds
Sleep 100,1If you don't add the ",1" it'll wait for 100 milliseconds OR until a key is pressed. the ",1" disables the latter.
ClrHome becomes
ClsIf your hesistant about using FB's syntax and rather want to use TI-Basic's syntax, you can just add a subroutine to the beginning of your code.
e.g for ClrHome
Sub ClrHome
cls
End subAnd now you can use ClrHome in the same way you use it as in TI-Basic!
i'm going to go out on a limb here and say that you can do this for about every TI-Basic command except:
-the (unconventional) storage of variables e.g 10-> B
-Conditionals
-Loops
Here's a subroutine to use the Output command.
Note that I use output1(Y,X,"text") instead of output(Y,X,"text") because there already is a (different) function called output in FB, so I can't just replace it with mine.
sub output1(Y as integer,X as integer,text as string)
locate Y,X
print text
end subAlso be aware that FB is certainly not limited to the stuff I'm showing you.
Check FB's projects page to see what FB is capable of.
http://www.freebasic.net/forum/viewforum.php?f=8I kinda smirked at the gameboy emulator thing.
*imagines writing a gameboy emulator in TI-Basic
*
