-#if defined( sgi )
-#include <sys/fpu.h>
-
-/*
- set the special "flush zero" bit (FS, bit 24) in the Control Status
- Register of the FPU of R4k and beyond so that the result of any
- underflowing operation will be clamped to zero, and no exception of
- any kind will be generated on the CPU. This has no effect on an
- R3000.
-
- the FS bit is inherited by processes fork()ed out of this one,
- but it is not inherited across an exec(). so anytime you exec()
- a process, you must re-set the FS bit in that process.
- */
-void flush_fpe(void)
-{
- union fpc_csr f;
- f.fc_word = get_fpc_csr();
- f.fc_struct.flush = 1;
- set_fpc_csr(f.fc_word);