about SPARC V8 Bit Scan Instruction ?

Jiri Gaisler jiri at gaisler.com
Wed Dec 17 17:36:37 UTC 2008

Bit scan is part of the V8e extension and not part of the
regular SPARC V8 standard. It has only been implemented
on the Fujitsu SPARC-lite processor as far as I can remember.
The leon processors do not implement bit scan.


?? wrote:
> Hi,
>   I see there is a SPARC V8 Bit Scan Instruction Project on the wiki page,
>   but I did not find any specification about SPARC V8 Bit Scan
> Instruction in the manual:
>   http://www.sparc.org/standards/V8.pdf  and in  The LEON Processor
> User's Manual.
>   Could any one give me some directions ?
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