Re: HLASM Macro Call Question
There's no need to do your own parsing -- as Steve Smith (I think it was) suggested, check the AINSERT statement: it was designed for exactly this kind of situation. Also, the NOCOMPAT(SYSLIST) option sometimes helps for substituted operands that are a list (like (A,B,C)), but won't help for operands like A,B,C -- which seems to be your situation. John Ehrman (Apologies for the tardy answer -- away for a couple of days.) (-- Referenced Note Follows ) Date:Thu, 24 Aug 2006 09:52:57 -0400 From:"Thompson, Steve (SCI TW)" <[EMAIL PROTECTED]> <...snips...> I am afraid that the problem is what I suspected, and what another poster suggested, that this (&COND) is handed to the IF macro as a string and not a "parse-able" line of text (as one would get had the macro had been coded in open code with what the contents of &COND are/were). So I am on my way to writing all my own bit testing rather than calling another macro to do it. -- 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
GUIDE Project Publication GPP-20
I've been trying to locate a copy of this publication; might anyone have a copy? I'm willing to pay repro/mailing costs. I checked with SHARE HQ (they might have taken over the GUIDE HQ files), but they couldn't locate a copy. Thanks... John Ehrman -- 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
PDS vs. PDSE
PDSEs have been available for a long time, and provide many advantages over PDSs. Why are people reluctant to use PDSEs? John Ehrman -- 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
PDS vs PDSE
I posted the original question on behalf of a colleague who was curious about customer views; I've been forwarding comments to him. John Ehrman (-- Referenced Note Follows ) Date:Mon, 22 Feb 2010 07:21:05 -0600 From:Barbara Nitz Subject: Abysmal PDSE performance <...> So, now that John Ehrman has managed to get the PDSE discussion started, he is conspiciously absent from the discussion -- 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
Coyote Lab
The "working ladies" group in San Francisco used "COYOTE" as an acronym for their motto: "Call Off Your Old Tired Ethics". John Ehrman -- 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
GUIDE Publication GPP-20
Does anyone have a copy of GPP-20 "A High Level Macro Processor Description - MACRO1"? I'm willing to pay copying/mailing costs if you'll send it to me. John Ehrman IBM Silicon Valley Lab 555 Bailey Avenue San Jose, CA 95141 -- 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
Object Modules
The ASMDASM disassembler component of the HLASM Toolkit Feature can reconstruct object modules from (a) load modules, (b) program objects, (c) CMS modules, and (d) VSE phases. It is described in the HLASM Toolkit User's Guide, GC26-8710, Chapter 3. It has been available since December 1995, and has been enhanced regularly since then. John Ehrman (-- Referenced Note Follows ) Date:Mon, 12 Sep 2011 15:13:17 -0500 From:Bill Hecox Subject: Object Modules Has anyone heard of a utility that can re-create object modules from a load module? Is this even possible? Thanks, Bill -- 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
Re: EXEC Above the Bar (Was Large Page Support)
CSECTs are restricted to 16MB only if you generate traditional OBJ object files, because its length and address fields are 3 bytes long. As Peter said, the total length in a single assembly will be less than 16M. *BUT* if you specify the NOTHREAD option you can have as many very larget CSECTs as you like: *PROCESS NOTHREAD A START 0 DS4095XL4096 B CSECT DS4095XL4096 C CSECT DS4095XL4096 D CSECT DS4095XL4096 END The NOTHREAD option also helps in debugging multi-CSECT assemblies because each CSECT's origin is zero, so you don't have to subtract the non-zero origin(s) HLASM generates if the (default) THREAD option is specified. John Ehrman (-- Referenced Note Follows ) Date:Sun, 7 Jun 2009 09:16:40 -0400 From:Peter Relson <...> >By experiment, I discover that HLASM won't let me create a CSECT >16MiB. It won't let me create a program with multiple CSECTs >totalling >16 MiB(?!) The binder has a restriction of (on the order or) 2G. Obviously HLASM cannot possibly restrict you from combining multiple CSECTs into anything you want, but the binder can. HLASM could have a restriction such as 16M on the cumulative size of CSECTs within a single assemly unit (I have no idea if that is the case) It is the case that a load module cannot exceed 16M. But a program object can. The load module restriction is due to limitations in the PDS directory entry. -- 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
Effective pipeline programming
Check the SHARE proceedings for presentations by David Bond titled "Coding Assembler for Performance". Excellent advice therein. John Ehrman (-- Referenced Note Follows ) From: "Bill Klein" Date: Thu, 23 Apr 2009 14:28:36 -0500 <...> The question has been asked as to whether there is "consolidated" information anywhere on IBM "performance advice" related to HLASM coding for best pipeline performance. The answer seems to be that, NO, no such consolidated information exists, but that some individual "hints" are spread out in the PoP (or at least implied there). <...> -- 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
Re: S0C4 in CBT234 at OFFSET 18A in REBUILD using member EXECJCL6--Dick Thorton's DISASSEMBLER which supports PDSE's
Take a look at the ASMDASM in the HLASM Toolkit Feature. It was based on Thornton's disassembler, but has been extensively enhanced over a period of 10 years. John Ehrman (-- Referenced Note Follows ) Date:Tue, 11 Dec 2007 11:11:29 -0500 From:"Hessong, Keith" <[EMAIL PROTECTED]> Any other suggestions? -- 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
Re: Assembler to C or C++ Conversion
I recommend you study the handout from SHARE session 8132 in the SHARE proceedings from Long Beach, California in February 2004: "Extending the Life Cycle of Legacy Applications" "(With Added Thoughts Specific to Assembler Language)" It contains a detailed analysis of factors to consider when you want to "modernize" existing assembler applications. John Ehrman (-- Referenced Note Follows ) On Mon, 17 Mar 2008 12:56:09 -0500, John Bachiochi >Has anyone run across a software package that will successfully convert >Assembler code to working C or C++ code or, alternatively, allow >Assembler code to run in a server-based environment more or less as is >(much like MicroFocus does for COBOL code)? -- 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
Searching for text string
You might consider the string-search capabilities of SUPERC, and use a REXX exec to set up the data set names. John Ehrman (-- Referenced Note Follows ) Sent: Thursday, April 10, 2008 3:38 AM We have a requirement to search for a textstring i a lot of datasets The datasets have the following format PROD.DISINH.D.T.L I need to be able to search all datasets within a date for a specific text-string. Any way to do this other than write a REXX? -- 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
z/Architecture Reference Summary
I've heard rumors to the effect that the current (high) prices were set erroneously, and that a correction is being considered. John ehrman -- 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
Why CSST?
Answers to this and many other questions about new instructions will be provided by the lead z/architect in session 8190 at the August SHARE conference. John Ehrman (-- Referenced Note Follows ) > Date:Thu, 31 May 2007 17:48:18 +0300 > From:Binyamin Dissen <[EMAIL PROTECTED]> > What does CSST give over PLO? -- 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
Wylbur History
Gerhard Postpischl is correct -- I had nothing to do with the development of Wylbur. I was an enthusiastic user at SLAC, and wrote a "Wylbur Tutorial" that got widespread use. John Ehrman -- 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
Latest Principles of Operation
The new updated to the z/Architecture Principles of Operation is now available at http://publibz.boulder.ibm.com/epubs/pdf/a2278325.pdf John Ehrman -- 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
Re: assembler question (strong typing)
Sorry, but I forgot to cross-post this to the IBM-MAIN list. John Ehrman (-- Referenced Note Follows ) Date: 21 November 2006, 15:27:26 PST From: John R. Ehrman408-463-3543 T/543- EHRMAN at STLVM27 To: ASSEMBLER-LIST at LISTSERV.UGA.EDU Regarding strong typing: there have been many, many extensions to the conditional assembly language in recent years that make it easy to implement any strength of strong typing. My macro tutorial (SHARE 106 in Seattle, session 8167) had several examples: simple forms that detect probable errors such as a L of a halfword operand, all the way to "very strong" typing where you can associate your own types to variables (such as distance, weight, etc.) in integer or floating point formats, and also assign units of measure to them (such as feet, miles, meters, and kilometers; and pounds and kilograms) and then detect not only inconsistent operations on them, but also convert units when necessary such as assigning a distance variable in kilometers to one in feet. I know of no HLL that can do this. With macros, it's easy. I vaguely remember a QUAL or HEAD pseudo-op. Shmuel, do you have any references? Or know of any web sites that might have scanned the manual(s)? Regards... John Ehrman -- 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
Decimal Floating Point PoP
The "Preliminary Decimal-Floating-Point Architecture" documentation is now available at http://publibfi.boulder.ibm.com/epubs/pdf/a2322320.pdf John Ehrman -- 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
