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| author | Leon Alrae <leon.alrae@imgtec.com> | 2015-02-20 13:07:45 +0000 |
|---|---|---|
| committer | Leon Alrae <leon.alrae@imgtec.com> | 2015-03-11 14:13:57 +0000 |
| commit | 644511117e7ca9f26d633a59c202a297113a796c (patch) | |
| tree | 1a213779e8c4320e00ef6f24c0a49705aef1ac96 /target-mips/cpu.h | |
| parent | 04cd79625fa4103c5839ba36ad476dd22f7f7557 (diff) | |
| download | qemu-644511117e7ca9f26d633a59c202a297113a796c.zip qemu-644511117e7ca9f26d633a59c202a297113a796c.tar.gz qemu-644511117e7ca9f26d633a59c202a297113a796c.tar.bz2 | |
target-mips: add missing MSACSR and restore fp_status and hflags
Save MSACSR state. Also remove fp_status, msa_fp_status, hflags and restore
them in post_load() from the architectural registers.
Float exception flags are not present in vmstate. Information they carry
is used only by softfloat caller who translates them into MIPS FCSR.Cause,
FCSR.Flags and then they are cleared. Therefore there is no need for saving
them in vmstate.
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-mips/cpu.h')
| -rw-r--r-- | target-mips/cpu.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/target-mips/cpu.h b/target-mips/cpu.h index 59a2373..283a546 100644 --- a/target-mips/cpu.h +++ b/target-mips/cpu.h @@ -786,6 +786,23 @@ static inline void restore_flush_mode(CPUMIPSState *env) &env->active_fpu.fp_status); } +static inline void restore_fp_status(CPUMIPSState *env) +{ + restore_rounding_mode(env); + restore_flush_mode(env); +} + +static inline void restore_msa_fp_status(CPUMIPSState *env) +{ + float_status *status = &env->active_tc.msa_fp_status; + int rounding_mode = (env->active_tc.msacsr & MSACSR_RM_MASK) >> MSACSR_RM; + bool flush_to_zero = (env->active_tc.msacsr & MSACSR_FS_MASK) != 0; + + set_float_rounding_mode(ieee_rm[rounding_mode], status); + set_flush_to_zero(flush_to_zero, status); + set_flush_inputs_to_zero(flush_to_zero, status); +} + static inline void cpu_get_tb_cpu_state(CPUMIPSState *env, target_ulong *pc, target_ulong *cs_base, int *flags) { |