about SPARC V8 Bit Scan Instruction ?

[阎淼]

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 ?