Experimental Physics and
Industrial Control System

Mark Rivers <[email protected]> · Sun, 28 Nov 1999 11:50:57 -0600

I am having intermittent problems which appear to be corruption of floating
point operations.  It just occurred to me that perhaps the problem is because I
am doing floating point operations in an interrupt service routine.  I am
running vxWorks 5.3.1 on an MVME162 CPU.  Is one allowed to do floating point
arithmetic in an interrupt service routine, or are the FP registers not saved
and restored in interrupt routines?  Is there a compiler switch or directive
to control this?

(I know this is probably in the vxWorks manuals, but I am at home and don't
have them handy).
                                       Thanks,
                                       Mark Rivers

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System