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target/mips: fpu: Refactor conversion from ieee to mips exception flags

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The original coversion function is used for regular and MSA floating
point instructions handling. Since there are some nuanced differences
between regular and MSA floating point exception handling, provide two
instances of the conversion function, rather than just a single common
one. Inline both instances of this function instances for the sake of
performance. Improve variable naming in surrounding code for clarity.

Reviewed-by: Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>
Signed-off-by: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Message-Id: <20200518200920.17344-17-aleksandar.qemu.devel@gmail.com>
This commit is contained in:
Aleksandar Markovic 2020-05-18 22:09:15 +02:00
parent 485cd2e4ce
commit 9579f78168
3 changed files with 82 additions and 51 deletions
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target/mips/internal.h
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@ -224,7 +224,6 @@ uint32_t float_class_s(uint32_t arg, float_status *fst);
uint64_t float_class_d(uint64_t arg, float_status *fst);
extern unsigned int ieee_rm[];
int ieee_ex_to_mips(int xcpt);
void update_pagemask(CPUMIPSState *env, target_ulong arg1, int32_t *pagemask);
static inline void restore_rounding_mode(CPUMIPSState *env)