In no particular order these guys have stuff that's helped me... Joe Wingbermuehle http://www.usmo.com/~joewing/ James Matthews matthews@tkb.att.ne.jp Ahmed al-Helw http://hail.icestorm.com/asm/asm.html Matt Johnson http://www.dogtech.com/cybop/ti86/ There are others - Check out the archives at ticalc.org. Jack