If IBM had designed the ACB to handle QSAM and ALL other access methods, we wouldn't be having this discussion. The amount of IBM code requiring contortions or A-Mode 24 in 2005 is a disgrace. There never should have been a need for a DCBE. The failure to allow ESDS on tape and provide GDG type naming capabilities also is a sore point with me. And don't get me started on requiring a started task (VTAM) to be up before you could access channel attached SNA devices and not allowing those devices to be consoles.
On 1 Aug 2005 12:47:38 -0700, in bit.listserv.ibm-main you wrote: >Okay, I admit it, this is kind of an embarrassingly newbie-ish post for >someone who has been writing assembler for 36 years. My only excuse is >that having sold my old company lock, stock, and barrel, and now working >solo, I have no old reference code to fall back on. > >I've got some assembler subroutines (non-reentrant) in which I rather >lazily embedded QSAM and BPAM macros. That of course limits the code to >RMODE=24. I would like to move the necessary control blocks to AMODE=24 >STORAGE and let the code be RMODE ANY31. (The code currently runs AMODE >ANY with no problems.) > >Question: is there any reference that provides a succinct statement of >the steps necessary? (If not, why not, but that's a different topic.) >Yes, I know each macro is separately documented in the two DFSMS >manuals, but I mean, is there any overview of the conversion steps >necessary. > >If there isn't a manual, I would welcome this esteemed group's input. I >need to move the DCB to AMODE=24 STORAGE. I need to point each DCB to >its own DCBE, which can be above the line, and I need to move the >appropriate EODAD= and so forth operands to the DCBE. What else? I don't >need a tutorial on 24-bit adcons or anything, I'm very familiar with the >theoretical concepts and the usage of the macros in general, just what >else specifically do I need to do to get from RMODE 24 code to RMODE >ANY31? I'm familiar with DSECTs and copying model control blocks from >CSECTs to STORAGE areas. What are the gotchas? The code in question has >both DCB abend and SYNAD exits. > >Thanks! > >Charles Mills ---------------------------------------------------------------------- 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
