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Re: cc register usage on i386/2.96


On Sat, Sep 09, 2000 at 02:11:17PM +1100, Alan Modra wrote:
> > How irritating.  The thing is, I can't figure why setg tests
> > the overflow flag at all.  Why doesn't it test zf==0 && sf==0?
> 
> Consider a compare (ie. subtract) of MAXINT with -1.  Result is MAXINT+1,
> which has sf==1, yet clearly MAXINT > -1.

Hmph.  So Clearly what I wanted was a richer set of comparison
primitives.  I'm thinking tri-state for each eflags bit.   ;-)


r~

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