Unfortunately, I missed the start of this thread. The poor design of the PoPs is one reason why I wrote my z/Architecture for application programmers book, not that I make any claims of providing an equivalent. The major difficulty that I find with the PoPs is the difficulty in finding the appropriate information for a particular variant of an instruction; for example, the appropriate details for a particular Translate One/Two instruction are located at various points of the description. To improve clarity, I made wide use of tables in my book that enabled me to keep the size of the book to less than 400 pages. Another weakness of the PoPs is the lack of examples for many of the more recent instructions.
Anthony Rudd ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
