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Re: i386 misassembly?

On Tue, Nov 01, 2005 at 09:34:33AM -0800, Eric Christopher wrote:
> But shouldn't it be assembling as de f9 instead of de f1? I thought  
> fdivrp was
> de f1?

That's what the following is about.

#if SYSV386_COMPAT
/* Someone forgot that the FloatR bit reverses the operation when not
   equal to the FloatD bit.  ie. Changing only FloatD results in the
   destination being swapped *and* the direction being reversed.  */
#define FloatDR FloatD
#else
#define FloatDR (FloatD|FloatR)
#endif

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre
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