Re: Using asm templates on 386 wiht %-register names??

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Article #53668

#53668

From: DJ Delorie
Date: Fri, 27 Sep 1991 12:13

22 lines
1249 bytes

In article <91Sep26.214944pdt.11704@alpha.xerox.com>, John_D._Sybalsky.MV@envos.xerox.COM writes:
> I need to do something like
> 
> 	asm("	movl %0, %esi" : : "g" (page));
> 
> But the danged % scanner (for %0) barfs on %esi, the legal register name.

Try this:

 	asm("	movl %0, %%esi" : : "g" (page));

Note that, at least in 1.39, the "register" in the third group of the
asm() must be the 16-bit version, not the 32-bit version, even though
it means the 32-bit version.  Example:

	asm("lodsd" : : : "ax");

I consider this to be a bug, but it's more annoying than disturbing.

DJ
dj@ctron.com

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From: dj@ctron.com (DJ Delorie)
Newsgroups: gnu.gcc.help
Subject: Re: Using asm templates on 386 wiht %-register names??
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Date: 27 Sep 91 12:13:10 GMT
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