Jiaxun Yang 7c66501861 [libcpu] Refine MIPS common code ...

MIPS common code was highly duplicated, This commit
is a attempt to clean-up and refine these code.

The context and exception handle flow is mostly identical
with Linux, but a notable difference is that when FPU enabled,
we save FP registers in stackframe unconditionally.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>

2019-12-11 15:24:04 +08:00

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