[RTEMS Project] #2270: SPARC: Optimized floating-point context handling

RTEMS trac trac at rtems.org
Tue Mar 3 06:50:25 UTC 2015

#2270: SPARC: Optimized floating-point context handling
 Reporter:  sebastian.huber  |       Owner:  sebastian.huber
     Type:  enhancement      |      Status:  accepted
 Priority:  normal           |   Milestone:  4.11.1
Component:  cpukit           |     Version:  4.11
 Severity:  normal           |  Resolution:
 Keywords:  SPARC            |

Comment (by daniel):

 Haven't calculated what the worst case is, perhaps it is not that much.
 You can probably get that from the GRFPU manual.

 It seems like a good idea to do it at the same time. I still think one
 should store FSR before disabling FPU, but of course if the execution time
 of the trap handler is longer than what can be queued in the FPU pipeline
 it shouldn't be a problem...

Ticket URL: <http://devel.rtems.org/ticket/2270#comment:14>
RTEMS Project <http://www.rtems.org/>
RTEMS Project

More information about the bugs mailing list