Re: gas: inconsistencies w/ immediates

[Andreas Schwab <schwab@suse.de>]

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Andrew Morton <andrewm@uow.edu.au> writes:

|> Using HJ's 2.9.5.0.34 binutils release (x86):
|> 
|> The handling of immediate constants appears to be inconsistent:
|> 
|> 
|> 	movl	$1234,%eax
|> 
|> OK, this moves an immediate into eax.
|> 
|> 
|> 	movl	$1234/$10,%eax
|> 
|> This fails because it is treating $10 as a label, not as a constant.

Isn't `$' part of the insn syntax (immediate prefix)?  IMHO this should be
written as:

        movl    $1234/10,%eax

|> This bizarre handling of $NNN really bites because this is the format in
|> which compiler-generated constants come out of GCC. For example, suppose
|> you wish to do this:
|> 
|> 
|> foo()
|> {
|>         asm(".equ SIZEOF_FOO,%0" :: "i" (sizeof foo));
                                ^^
Try %c0.

Andreas.

-- 
Andreas Schwab                                  "And now for something
SuSE Labs                                        completely different."
Andreas.Schwab@suse.de
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