While on an unrelated quest, I wound up being pointed at "The Intel SDM (Software Developer's Manual)", at I found it (all three volumes!) at http://www.intel.com/content/www/us/en/processors/architectures-software-developer-manuals.html
It's pretty big, and is divided into three volumes. Not suggesting that the PofOp (POPS, POO, whatever you want to call it!) should follow this model, but I thought it was interesting and relevant to this (now dormant) discussion. ...phsiii
