Sir, For TCBNOIRB, I'd suggest scanning thru an old APAR (OA19796) and perhaps following on to some of the other related APAR's (please keep in mind, 'IRB').
For TCBFX, I'd suggest, OA16342 and related (please keep in mind, 'asynchronous'). >From the little I've used these flags, it's more a question of whom the 'setter/reset r' is and obviously, what is being done. Kind Regards Jim Thomas 617-233-4130 (mobile) 636-294-1014 (res) j...@thethomasresidence.us (Email) -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@bama.ua.edu] On Behalf Of David Cole Sent: Friday, September 30, 2011 5:01 AM To: IBM-MAIN@bama.ua.edu Subject: TCBFX vs. TCBNOIRB Can anyone tell me the difference in purpose or management between the TCBFX flag and the TCBNOIRB flag? As far as I know they both are supposed to prevent the queuing of IRBs. In the IKJTCB macro they each are doc'd as follows: > TCBNOIRB EQU X'40' - If on, IRBs will not be queued to this TCB. @08A > * A program setting this flag MUST save its > * current value and restore that value either > * when that program can tolerate IRBs being > * queued or before the current RB terminates. > TCBFX EQU X'01' - PROHIBIT QUEUEING OF ASYNCHRONOUS EXITS FOR > * THIS TASK So why do they both exist? Thanks, Dave Cole REPLY TO: dbc...@colesoft.com ColeSoft Marketing WEB PAGE: http://www.colesoft.com 736 Fox Hollow Road VOICE: 540-456-8536 Afton, VA 22920 FAX: 540-456-6658 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.1809 / Virus Database: 2085/4526 - Release Date: 09/29/11 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html