PrefetchAW

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PrefetchAW

Nicolas Cellier
 
Hi Eliot,
I'm not sure I understand assembler at all, but:
- byte order sounds strange in X64 concretizePrefetchAw >> (0, 16, 8 , 24)
- why is machineCodeSize 7 in X64 but maxSize in IA32?
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Re: PrefetchAW

Nicolas Cellier
 


2016-04-29 21:30 GMT+02:00 Nicolas Cellier <[hidden email]>:
Hi Eliot,
I'm not sure I understand assembler at all, but:
- byte order sounds strange in X64 concretizePrefetchAw >> (0, 16, 8 , 24)
- why is machineCodeSize 7 in X64 but maxSize in IA32?

I think I get the answer for 2nd bullet:
This is because maxSize is set in computeMaximumSize to either 7 or 0:
        [PrefetchAw]    -> [^self hasSSEInstructions ifTrue: [7] ifFalse: [0]].