Re: An unusual Performance approach using Synthetic registers

[Andy Walker <ja_walker at earthlink dot net>]

On Monday 06 January 2003 03:43 pm, Michael S. Zick wrote:
<snip>
> Because of the way a procedure call entry is made and its use
> of the stack frame - those lines will be in the L-1 cache by the
> time Andy wants to use them. - Specially if he has the function
> call code issue a "prefetch" command for the range of stack
> memory that he knows the function will use for its prologue.
>
> Mike

I had not considered a "prefetch" command.  I was not aware that such 
existed.  

I am pretty familiar with the x86 instruction set, but I clearly recall that 
I have never seen anything like this.  Is there such a thing in the x86 
instruction set, and if so, what is it called?  Is it perhaps one of the 
testing instructions?  

Andy