Jakub Piotr Cłapa wrote at 10/16/2010 11:57 AM:
On 14.10.10 11:44, Noel Welsh wrote:
The distinction is a bit arbitrary, as with a one-to-one mapping you
can convert from one to the other with no loss of information.
AFAIK this is true in general since in the raw binary form you have to
distinguish code from data and as far as my knowledge od disassemblers
goes it is not a trivial problem to solve.
Just in case any student is confused: by "one-to-one", Noel was speaking
of assembly language when it used as a target code of a compiler (note
his "usually"). You might see assembly language code that uses macros
and descriptive symbolic labels, which have information that is lost
when assembling to its target machine (or virtual machine / p-code)
code, especially if it is handwritten. Plus, if the assembly language
was handwritten, the comments are often indispensable, and they, too,
are lost when going to target code.
--
http://www.neilvandyke.org/
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