Msg: 5334 *Conference*

08-16-94 22:20:59

From: COMET _

To : RON WIESEN

Subj: REPLY TO MSG #5332 (UNDOCUMENTED 80C85 OPCODES)

I have no idea what bit 3 of the status byte is for, so anything you could add
to my knowledge here would be ideal. The V flag is bit 1. The undocumented
opcodes including RST V were written up, I believe, in the September 1980
edition of Microcomputing, in an article called "The Secret Life of the 8085"
by Ken Barbier.