> I understand that during a WAIT, bits 1-31 of the ECB hold the > address of a control block. If that control block resides above > the Line, might not its address spoof the POST bit? I suppose > this is not a concern because no two tasks are allowed to WAIT > concurrently on the same ECB.
The "control block" is the waiting RB - used by the system to locate the waiting task and validate that the putative ECB really is being waited on by that task and RB. RBs are guaranteed to be in 24 bit storage, so no issue with spoofing. CC ---------------------------------------------------------------------- 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
