Re: Disassembler


"Alistair" <alistair@xxxxxxxxxxxxxxxxxxxxx> wrote in message
news:1140879796.171911.152550@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Reading in comp.lang.asm370 I came across the following item which may
be of some interest:

<QUOTE>

On Fri, 10 Feb 2006 13:54:57 -0500, Gilbert Saint-Flour wrote:
<usenet5...@xxxxxxxxx> wrote:
I found this page by accident a moment ago:

http://patents.nimblewisdom.com/patent/5946484-Method-of-recovering-source-code-from-object-code

It's a patent issued in 1999 by the USPTO for a disassembler, which
wasn't a
new concept back then (I've written my first disassembler in 1982).


The problem is that the language of patents is so arcane that it's
difficult
to spot the original elements of this patent, or if there's any
originality
in it at all. Hopefully, one of you will dig something up.



It appears to be more than just a dissassembler, based on the generated

assembly code it looks for known patterns charateristic of the IBM
Cobol
compiler and attempts to symthesize the Cobol source, as nearly as I
can
tell in 5 minutes. But this has been done for many years, I am not
sure
what is novel here.

</QUOTE>

Perhaps there will soon be an answer to the perennial "Where can I find
a cobol disassembler?"


Apologies if this is an obvious question.... but where can I find a cobol
disassembler ? I've read the instructions and I am none the wiser !!!

Keith



.

Relevant Pages

  • Re: Disassembler
    ... new concept back then (I've written my first disassembler in 1982). ... to spot the original elements of this patent, ... compiler and attempts to symthesize the Cobol source, ... variable names in the generated source if you provide record definitions. ...
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  • Re: Disassembler
    ... new concept back then (I've written my first disassembler in 1982). ... to spot the original elements of this patent, ... compiler and attempts to symthesize the Cobol source, ... I have no direct involvement or interest in them. ...
    (comp.lang.cobol)
  • Re: Disassembler
    ... new concept back then (I've written my first disassembler in 1982). ... to spot the original elements of this patent, ... compiler and attempts to symthesize the Cobol source, ... Because we looked at the executable code an not the source code as our first point of interest, our users could then match the executables with the source. ...
    (comp.lang.cobol)
  • Re: Disassembler
    ... new concept back then (I've written my first disassembler in 1982). ... to spot the original elements of this patent, ... compiler and attempts to symthesize the Cobol source, ... users could then match the executables with the source. ...
    (comp.lang.cobol)
  • Re: Disassembler
    ... Pete Dashwood wrote: ... new concept back then (I've written my first disassembler in 1982). ... compiler and attempts to symthesize the Cobol source, ... variable names in the generated source if you provide record definitions. ...
    (comp.lang.cobol)