diff options
| author | Leon Alrae <leon.alrae@imgtec.com> | 2014-06-27 08:49:07 +0100 |
|---|---|---|
| committer | Leon Alrae <leon.alrae@imgtec.com> | 2014-10-14 13:28:52 +0100 |
| commit | ddc584bdb5375f260e7dcec3831d1bb32f665d25 (patch) | |
| tree | dcaf1319050249cc46a5ff414aa705d42452a181 /target-mips | |
| parent | 3f4938833c21a394bf4630c163467b401d1b3ff6 (diff) | |
target-mips: do not allow Status.FR=0 mode in 64-bit FPU
Status.FR bit must be ignored on write and read as 1 when an implementation of
Release 6 of the Architecture in which a 64-bit floating point unit is
implemented.
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Yongbok Kim <yongbok.kim@imgtec.com>
Diffstat (limited to 'target-mips')
| -rw-r--r-- | target-mips/translate.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/target-mips/translate.c b/target-mips/translate.c index 6f57171912..80887812ca 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -17951,6 +17951,12 @@ void cpu_state_reset(CPUMIPSState *env) } } #endif + if ((env->insn_flags & ISA_MIPS32R6) && + (env->active_fpu.fcr0 & (1 << FCR0_F64))) { + /* Status.FR = 0 mode in 64-bit FPU not allowed in R6 */ + env->CP0_Status |= (1 << CP0St_FR); + } + compute_hflags(env); cs->exception_index = EXCP_NONE; } |