HOW TO BLACK A TI-83(+) SCREEN ?

First you must configure the screen : you must write these commands:
:Clrdraw..................To clear the screen
:Axesoff...................To disable axes
:1->Xmin
:64->Xmax
:1->Ymin
:96->Ymax...............To configure the screen

Then you must use the for command to trace an horizonal line .His Yvalue will increase of 1 pixel once more
:For(A,1,64)......................The A value will start at 1, and will finish at 64
:Horizontal A.....................To trace an horizonal line which has an Yvalue of A
:End..................................To stop the loop.

The asm lessons are in english. I put here the most comprehensible et useful help to learn asm programmation. You need only one of this lessons to learn asm but if you want to use all yout TI's fonctions, you should read a lot and work more you can imagine.

If you have or find another lessons, send it to me, it will help other people who want learn asm.