MIPS with Floating Point: Where is fp status register saved/restored?

Bruce Robinson bndrobinson at cox.net
Thu Jul 15 05:38:28 UTC 2004

Hello fellow RTEMS develelopers,

Maybe someone can help me out? I can't find where the MIPS floating point
coprocessor status register is saved and restored through a context switch
in RTEMS. This is register fcr31. Is it not necessary to explicitly save and
restore it, or did I miss the code, or did it get left out? As a sanity
check, I looked at the Linux kernel code for the MIPS processor and found
where it is saved and restored there.

Any feedback would be appreciated!


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