Thanks, guys
@Yeong: If I make a custom error, I believe it cannot have a Goto option, but I can add it

So after many requests to add a sound routine and a request to add a custom error, I have finally added them 

For now, the sound routine may change unless I get approval from yeong and no better ideas are brought forth, but have fun with the examples. Unfortunately, I cannot take a screenshot of sound with the technology I have here, so you will either need to take my word or try it yourself (I suggest using Wabbit and enabling sound, though it sounds the same on a calc if you have headphones).

So the syntax:
conj(Duration,DataLoc,DataSize
This will play the sound for the data at DataLoc. DataSize is the number of bytes to play. Duration is how long to play each note (256 is fast, 65535 is really slow)

Alternatively, you can play just one sound using the ' operator followed by a note value. The notes are 1 to 127 and 129-255 are silence:
conj(Duration,'Value

And for custom error messages, just add another argument to the CallError command and use error code 2:
solve(4,2,"Something
Also, I was wrong before, I did manage to get the Goto option to work, too :

hehe, have fun! I hope you can figure out what I did there .__. Feel free to ask questions

Ah, okay, I was wondering why you were using numbers above 255
Are you taking advantage of the duration, too? Because that gives you some pretty nice control (in my opinion).

EDIT: Also,  That is very useful Did you come by these values through trial and error or did you use some kind of math?

Ah Well I currently trying to integrate the Axe version as an alternative so that I can see what the difference is. I need to figure out all the inputs .__.

Haha, I plan to add parser hooks, too, and you can make a custom error handler (in Grammer code), too That can really come in handy when you don't want certain errors to exit the program.

Well actually, when an error occurs, code can be redirected to an error handler. If the error handler tells it to call a Grammer error or exit, it will, but otherwise you can send it back to the code (and Ans and whatnot are restored properly).

erm why do I see LD in the program?