Author Topic: strange occurance concerning lowercase letters (Read 3324 times)

Calcaholic · « **on:** July 07, 2011, 02:06:48 pm »

I just was witing a program in Axe to read out a simple ti-basic program.
But when I used lower case (enabled via the Axe-Parser options), I got for all of the lower case the same decimal equivalence: 187.
I wonder if anybody knows about the reason for that?
It is not possible that all the lower case are encoded with the same value I guess...

leafy · « **Reply #1 on:** July 07, 2011, 02:07:23 pm »

Do you mind posting your program, or at least the bit that you're having trouble with?

Happybobjr · « **Reply #2 on:** July 07, 2011, 02:07:57 pm »

lowercase letters are two byte instead of 1, so it is reading the 1st byte now the whole.
(might be a little off)

Deep Toaster · « **Reply #3 on:** July 07, 2011, 02:27:28 pm »

Quote from: Happybobjr on July 07, 2011, 02:07:57 pm

lowercase letters are two byte instead of 1, so it is reading the 1st byte now the whole.
(might be a little off)

That's exactly it. TI-BASIC programs are stored as tokens, not characters. Characters are always one byte, but tokens can be up to two. Lowercase letters in particular are two-byte tokens that have $BB as a first byte, and lo, $BB in decimal is 187!

I suggest you take a look at this guide. In particular the $BB tokens are listed here.

Juju · « **Reply #4 on:** July 07, 2011, 03:59:56 pm »

Also worth nothing that all the lowercases letters have the same getKey^r values.

http://www.omnimaga.org/index.php?action=ezportal;sa=page;p=21

Author Topic: strange occurance concerning lowercase letters (Read 3324 times)

Calcaholic

strange occurance concerning lowercase letters

leafy

Re: strange occurance concerning lowercase letters

Happybobjr

Re: strange occurance concerning lowercase letters

Deep Toaster

Re: strange occurance concerning lowercase letters

Juju

Re: strange occurance concerning lowercase letters