"This was a known - and to my mind indefensible - issue with the z900 machines."
Been going on for years. Remember Sharp APL? Did a nasty STC into a following branch instruction and blew the pipeline to smithereens on the old NAS AS/9000 series. Happened in a tight and frequently used loop. Of course, code alteration is several times worse than simple non-reentrancy. There ought to be a coding lab on Elba. There was also an issue with a TRT in GDDM Someone will come up with a code problem on STRETCH fairly soon. -- Phil Payne http://www.isham-research.co.uk +44 7833 654 800 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html

