Hello, i have read some messages in this list from Jiri Gaisler in March 2008 : http://www.rtems.com/ml/rtems-users/2008/march/msg00272.html stating that one should always have #define SPARC_HAS_FPU 1 It seems that this patch has not been integrated in mainline RTEMS sources. Is there a reason or has this just been forgotten ? Thanks, Pierre Kestener.