[Info-vax] SAMBA really sloooow on OVMS Integrity. Any Ideas????

[Bob Koehler]

In article <EeCdnadx38FyZvbRnZ2dnUVZ_h2dnZ2d at earthlink.com>, "John Reagan" <johnrreagan at earthlink.net> writes:
> 
> I would not say that is the best way.  For such stores, you have to worry 
> about other pieces of code using bytes near your unaligned variable.

   If I'm writing code then I have control over what code is accessing
   what locations.  Compilers on Alpha and Itanium will align variables
   if not told otherwise, which means that those odd bytes will probably
   be unused.

> 
> The best solution is to use byte and word sized instructions.  You store 
> only the data you want and no alignment faults.

   Yeah, right.  Try that on an EV4.  Even on other processors, I'm not
   going to do byte or word accesses to fetch a 16 byte datum if I can
   let the compiler align the data.