🚀 go-pugleaf

Rich Greenberg wrote:
> 
> I have heard that a good dissasembler is included with the HLASM,
> but I have no docs on it.
> 
> Is it seperately installed, and how does one get to it?  (VM)
> --
Funny you should ask, I've been experimenting with it just the last
couple of weeks. The program name is ASMDASM (I'd guess it's available
if HLASM is installed). The doc for it is in BKMGR. JCL is simple, just
note that the SYSLIB input dataset cannot be concatenated (if the module
you name isn't in the first one, it's not found). From memory (forgive
me if I've forgotten something):

//       EXEC  PGM=ASMDASM,PARM=COPYRIGHTOK
//SYSLIB  DD  DSN=...
//SYSPRINT DD  SYSOUT=...
//SYSPUNCH DD  ...
load_module_name CSECT_name
(optional control cards)

There are several types of control cards, e.g., to specify program or
DSECT base registers, to direct the disassembler to treat a specified
block of code as DATA or INSTRuctions, etc. It's all in the doc. The
listing, of course, goes to SYSPRINT. The disassembled source code is
written to SYSPUNCH. IBM suggests that you make SYSPUNCH DUMMY for the
first run, until you get a chance to look at the output and see if you
want to add any control cards. I left is assigned to SYSOUT=* and
deleted what I didn't want.

Email/post if you have any further questions, I'll try to remember to
get the real JCL & to post it here.

Bill Lynch

> Rich Greenberg    Work:  PM0RMG atsign WSPVM1.worldspan.com   770-563-6656
> N6LRT   Marietta, GA, USA   Play: richgr atsign netcom.com    770-321-6507
> Eastern time.    I speak for myself & my dogs only.        VM'er since CP-67
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