Date: Thu, 23 Dec 2004 11:31:23 -0800 From: Sean McNeil <sean@mcneil.com> To: amd64@freebsd.org Subject: what is the proper asm spec for xchg Message-ID: <1103830283.53421.3.camel@server.mcneil.com>
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I'm looking at why audio/sdl_mixer will not compile and I see that
devel/sdl12 has an include with
#elif defined(__GNUC__) && defined(__x86_64__)
static __inline__ Uint16 SDL_Swap16(Uint16 x)
{
__asm__("xchgb %b0,%h0" : "=q" (x) : "0" (x));
return x;
}
This appears to be incorrect as it is giving errors when compiled. Does
anyone more conversant with asm directives for amd64 have an idea what
this should be?
Thanks,
Sean
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