An unusual Performance approach using Synthetic registers, and a request for guidance.

[Andy Walker]

Yes, I agree.  Thank you.

Andy

On Sunday 29 December 2002 03:47 am, Bonzini wrote:
> > Orthogonality?  I am sorry.  I do not understand.  Could you be a bit
> > more descriptive?
>
> The lack of memory-to-memory move instructions, for example.  Synthetic
> registers would have to be moved inside the core to do arithmetic on them.
> It's already a problem not to have three-operand math, synthetic registers
> would make the x86 basically an accumulator-based chip (move from reg to
> accumulator, sum accumulator to reg) and also limit the ability to use LEA
> to do arithmetics.
>
> Paolo