From: Bill Currie <bill AT taniwha DOT tssc DOT co DOT nz>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: _farpokeb Function
Date: Thu, 14 May 1998 21:02:29 +1200
Organization: NetLink Wellington, New Zealand.
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References: <19980513233008 DOT AAA5660 AT ppp120 DOT cartsys DOT com>
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CC: Nate Eldredge <nate AT cartsys DOT com>
To: djgpp AT delorie DOT com
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Nate Eldredge wrote:
> 
> At 12:07  5/13/1998 +0300, Eli Zaretskii wrote:
> >> "movb %b1, (%k2)")   -what is the address of %k2?
> >
> >k2 is argument 2 with the k constraint (you only need the constraints
> >when you write inline assembly).
> 
> Is that an undocumented feature? It's a convenient syntax, but I see no
> mention of it in the docs.

It's semi documented in the GCC manual I think (for certain generic
codes, anyway) and the rest are documented in config/i386/i386.md in the
gcc source tree (in the comments at the top of the file).

Bill
-- 
Leave others their otherness.