If you have a TI Calc (or can get your hands on one) and the serial link cable you can....
1) Use this program to extract the ROM from the calc
http://www.ticalc.org/archives/files...o/84/8442.html
2) Then use this program to use the ROM on your PPC.
http://www.freewareppc.com/calculato...emulator.shtml
Hope that helps....