RTEMS 4.9.2 On-Line Library

Blackfin Specific Information Count Leading Zeroes Instruction

RTEMS CPU Architecture Supplement

3.1.1: Count Leading Zeroes Instruction

The Blackfin CPU has the BITTST instruction which could be used to speed up the find first bit operation. The use of this instruction should significantly speed up the scheduling associated with a thread blocking.

RTEMS CPU Architecture Supplement