Classification: Confidential

ITYM TANSTAAFL, as originally coined by Larry Niven(?)

-----Original Message-----
From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of 
Farley, Peter x23353
Sent: Monday, November 1, 2021 11:33 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Assembler analysis [was: RE: Serverpac installs January 2022 and 
beyond - Issues]

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I am aware of only one product (commercial) that claims to be of any help in 
language conversion for assembler code, but there may be more of which I am 
unaware.  In the one case I am aware of, the results were truly horrible COBOL 
code that didn't even come close to performing the same function as the 
assembler from which it was converted.  I will not name the product for obvious 
reasons.

In my experience of performing this exact task more than once in my career, I 
have found that the best route to success is deep reading of the assembler code 
until you understand the function, input, and output criteria.  Once you 
understand what it is supposed to accomplish, rewriting it manually in a more 
"modern" language is far more likely to succeed than any mechanical conversion 
can provide for you.

TANSTAFL -- There ain't no such thing as a free lunch.  You have to put in the 
effort to understand the original code or you are probably not going to get it 
right.

If you are lucky there is some kind of programmer-level or at least 
business-level documentation available describing the original intended 
function along with its expected inputs and outputs.  If not, the only choice 
left is just reading and understanding the code on your own.

Good luck.  It can be quite a hard task, but if you put in the effort you can 
succeed.

Peter


-----Original Message-----
From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On Behalf Of 
Warren Brown
Sent: Monday, November 1, 2021 12:07 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: Serverpac installs January 2022 and beyond - Issues

Hey experts;  I am back with mainframes.  I have a new position to analyze to  
assembly language program. Is their any programs to analyze ASM programs for 
re-write them to a more modern language. Perhaps their are tools to help me, 
Thanks, Warren
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