Some more testers around ?

@DrDnar :
So, did you try the new version ?
To tell the truth, i'm kinda curious to see the results.

I can provide a backspace routine from cmdOS if you want, it's OS-independant

I'm far from that part but thanks a lot for the proposition =]
I'll think of it if i encounter difficulties.

You mean like I could do .txt.8xp? or rename a .txt to .8xp?

I'm not totally sure which variable type i'm gonna use but i'll probably go for the 8xv format.
But yeah, the file will have to be converted to that format before sending it to the calc (not just renamed).
A converter should be included.

Unfortunately, files won't be larger than 65535 bytes, due to VAT limitations.
The converter will automatically split the file if necessary.

disp_char routine coded =]

I'm starting to understand how it works now...
Thx for the sharing =]

A new project on its way...

edit8X+ will mainly be a text viewer|editor.
The main idea is to be able to read text imported from a computer.
I know that doesn't sound very original, but i really wanted to code my own.
Also, i might use it later for a larger purpose.
A challenge will be to make the code OS-independant (avoiding system routines when possible).

*****

PLANNED FEATURES :

compatibility with as many models as possible
The default large font will be used but the characters order will match :
 ASCII printable characters (full compatibility)
 ISO-8859-1 printable characters (partial compatibility)
 CP-1252 printable characters (partial compatibility)
block selection , cut , copy , paste
undo
compatibility with the tab control character
compatibility with different versions of the enter control character :
 $0A
 $0D
 $0D,$0A
temporary system & extra ram usage during edition
view-only mode for archived files too large to be edited (if unsufficient free ram)
new , save as , save
backspace (maybe)
horizontal scrolling
...

*****

WHAT'S DONE FOR NOW :

The font :

242 printable characters
153 of them are compatible with notepad (instead of 92 in the original system font).
The other 89 are specific to the calculator (I needed them for another project).

11 undefined characters (dedicated sprite)

The 3 remaining slots are used for control chars (tab & enter).

*****

Any suggestions are welcome =]

How on earth does someone "time" a processor with only the processor to do so?
And the same goes for keypresses! Wahh lol

Hmm... timing the processor is definitely not the aim here.
The idea is to know how many cycles are needed between writing & reading to port 1.
Knowing that delay allows you to make sure low level interactions with the keyboard are compatible with all hardware types.

Should I test different OS versions?

That shouldn't matter, since i don't use any OS code in the delay calculation.
Just be sure to turn that mathprint shit off if using 2.53 or 2.55.

Results would be interesting, indeed.
Anyway, i'll probably post a duplicate topic on cemetech.

Hey there =]

If you don't already know, a delay is needed between writing and reading to the keyboard (using port 1).
The problem is, that the needed time is not accurately known.
Since there seems to be many different opinions about the subject, i decided to code a program to test that up.
The main purpose is to be able to have a better knowledge of the hardware, allowing more optimised low level operations.
Also, maybe we'll have some surprises (ti likes to change hardware pieces).

COMPATIBILITY

TI-83 Plus
TI-83 Plus.fr
TI-83 Plus Silver Edition
TI-84 Plus
TI-84 Pocket.fr
TI-84 Plus Silver Edition
TI-84 Plus Pocket Silver Edition
TI-84 Plus C Silver Edition

All official OS are compatible, as long as you TURN OFF MATHPRINT.

INSTRUCTIONS

Simply execute from the homescreen and follow instructions.
Important : When pressing the 0 key, you must HOLD it until the end of the test.

DOWNLOAD

black & white models : http://www.omnimaga.org/index.php?action=dlattach;topic=16102.0;attach=15043
TI-84 Plus C Silver Edition : http://www.omnimaga.org/index.php?action=dlattach;topic=16102.0;attach=15044

RESULTS

The displayed value(s) are the needed delays (in cycles) for each CPU speed mode (order : 0,1,2,3).
A question mark specifies an unknown delay.
Please don't forget to specify the model and serial number end (at the back of your calc, in the form X-XXXXX).

OWNER MODEL SERIAL DELAY-0 DELAY-1 DELAY-2 DELAY-3

the_mad_joob 83+ I-0299A 6
bhtooefr 83+ S-0504E 0
chickendude 83+ N-0305H 5

fortytwo 83+SE I-0501 4 23 30 37 overclocked

Darl181 84+ S-0305B 6 29 29 29
Streetwalker 84+ S-0107G 4 21 21 21

the_mad_joob 84+SE S-0404 6 29 29 29
DrDnar 84+SE S-0605D 4 19 19 19
fortytwo 84+SE P-0410O 4 17 17 17
willwac 84+SE P-0410O 4 20 20 20
chickendude 84+SE ? 4 18 18 18

DrDnar 84+CSE ? 22 72 72 72

THANKS IN ADVANCE FOR YOUR PARTICIPATION =]