Message-ID: <38BBDCDA.7CA5C1CE@cyberoptics.com>
From: Eric Rudd <rudd AT cyberoptics DOT com>
Organization: CyberOptics
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Subject: Combined C/asm listing (was Re: Fastest bitblt?)
References: <Pine DOT LNX DOT 4 DOT 10 DOT 10002270616350 DOT 904-100000 AT darkstar DOT grendel DOT net>
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Date: Tue, 29 Feb 2000 08:51:07 -0600
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To: djgpp AT delorie DOT com
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Kalum Somaratna aka Grendel wrote:

> If you want to see the C code together with the assembly it was converted to,
> use a command line like this:
>
>       gcc -c -Wa,-a,-ad [other GCC options] foo.c > foo.lst
>
> which will output the combined C/assembly listing to the file `foo.lst'.

I read this posting with interest, because I have often wanted an assembly output
listing similar to what Borland produces with the -S option, with each C
statement interleaved with the assembler code it generates.  Unfortunately, the
above options do not do this, as was claimed -- I only get assembler, binary, and
cross references; no C source.  Is it possible to get interleaved C and assembly
output?

I have actually managed to do this, but only by the tedious procedure of
modifying the source to look like this:

a = 3; asm("#a = 3;);
b = a; asm("#b = a;);

etc.  There must be a better way.

-Eric Rudd
rudd AT cyberoptics DOT com