I have a (few) questions 1: Is there anyway (In Basic) to do a pxltest on the TI-85? 2: If you guys have the vat routines andi released on list-zshell, can someone tell me how to use those in my own program (mainly, the best way to look up ROM VER and determine where to call) and, what the heck is OP1 (it's mentioned as an input to that routine), and (one last thing) what is the format for a matrix? (in ASM)