Re: [RFC/RFA] Proper mnemonics for VIA PadLock (i386) instructions

[Mark Kettenis <mark dot kettenis at xs4all dot nl>]

   Date: Wed, 13 Apr 2005 10:07:55 +0930
   From: Alan Modra <amodra@bigpond.net.au>

   On Tue, Apr 12, 2005 at 10:43:10PM +0200, Mark Kettenis wrote:
   > Because there is already code out there that uses the hyphen.  The
   > reason for preferring the hyphenated names over the unhyphenated names
   > is that the former are used by the VIA documentation.

   I don't like the idea of putting '-' in mnemonic_chars.  I think it has
   a high likelihood of breaking other valid assembly.  The gas app.c code
   has a nasty habit of completely removing whitespace once past the
   mnemonic of an instruction, and it can get confused.  Something like

    addr16 mov -2,%eax

   might fail if '-' is a valid mnemonic char.

Well, it doesn't fail.  The patch to tc-i386.c to allow '-' as a
mnemonic char has been in the OpenBSD tree for more than a year now.
That means all major Open Source software has been compiled with it.
So I'd expect any problems with it would have surfaced by now.

Mark