MFC r256705:

Optimize isp(4) to reduce CPU usage, especially in target mode:
 - Remove two excessive and slow register reads from isp_intr().  Instead
of rereading value every time, assume that registers contain what we have
written there.
 - Avoid sequential search through 4096 array elements when looking for
command tag.  Use hash of lists to store active tags separately from free
ones and so greatly speedup the searches.

0 files changed, 0 insertions, 0 deletions