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-rw-r--r--target-mips/op_helper.c32
1 files changed, 19 insertions, 13 deletions
diff --git a/target-mips/op_helper.c b/target-mips/op_helper.c
index 82044990b0..7981ea2f3a 100644
--- a/target-mips/op_helper.c
+++ b/target-mips/op_helper.c
@@ -2465,12 +2465,16 @@ static inline void update_fcr31(CPUMIPSState *env)
/* unary operations, modifying fp status */
uint64_t helper_float_sqrt_d(CPUMIPSState *env, uint64_t fdt0)
{
- return float64_sqrt(fdt0, &env->active_fpu.fp_status);
+ fdt0 = float64_sqrt(fdt0, &env->active_fpu.fp_status);
+ update_fcr31(env);
+ return fdt0;
}
uint32_t helper_float_sqrt_s(CPUMIPSState *env, uint32_t fst0)
{
- return float32_sqrt(fst0, &env->active_fpu.fp_status);
+ fst0 = float32_sqrt(fst0, &env->active_fpu.fp_status);
+ update_fcr31(env);
+ return fst0;
}
uint64_t helper_float_cvtd_s(CPUMIPSState *env, uint32_t fst0)
@@ -2537,14 +2541,24 @@ uint64_t helper_float_cvtpw_ps(CPUMIPSState *env, uint64_t fdt0)
{
uint32_t wt2;
uint32_t wth2;
+ int excp, excph;
wt2 = float32_to_int32(fdt0 & 0XFFFFFFFF, &env->active_fpu.fp_status);
- wth2 = float32_to_int32(fdt0 >> 32, &env->active_fpu.fp_status);
- update_fcr31(env);
- if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID)) {
+ excp = get_float_exception_flags(&env->active_fpu.fp_status);
+ if (excp & (float_flag_overflow | float_flag_invalid)) {
wt2 = FLOAT_SNAN32;
+ }
+
+ set_float_exception_flags(0, &env->active_fpu.fp_status);
+ wth2 = float32_to_int32(fdt0 >> 32, &env->active_fpu.fp_status);
+ excph = get_float_exception_flags(&env->active_fpu.fp_status);
+ if (excph & (float_flag_overflow | float_flag_invalid)) {
wth2 = FLOAT_SNAN32;
}
+
+ set_float_exception_flags(excp | excph, &env->active_fpu.fp_status);
+ update_fcr31(env);
+
return ((uint64_t)wth2 << 32) | wt2;
}
@@ -2950,8 +2964,6 @@ uint64_t helper_float_ ## name ## _d(CPUMIPSState *env, \
\
dt2 = float64_ ## name (fdt0, fdt1, &env->active_fpu.fp_status); \
update_fcr31(env); \
- if (GET_FP_CAUSE(env->active_fpu.fcr31) & FP_INVALID) \
- dt2 = FLOAT_QNAN64; \
return dt2; \
} \
\
@@ -2962,8 +2974,6 @@ uint32_t helper_float_ ## name ## _s(CPUMIPSState *env, \
\
wt2 = float32_ ## name (fst0, fst1, &env->active_fpu.fp_status); \
update_fcr31(env); \
- if (GET_FP_CAUSE(env->active_fpu.fcr31) & FP_INVALID) \
- wt2 = FLOAT_QNAN32; \
return wt2; \
} \
\
@@ -2981,10 +2991,6 @@ uint64_t helper_float_ ## name ## _ps(CPUMIPSState *env, \
wt2 = float32_ ## name (fst0, fst1, &env->active_fpu.fp_status); \
wth2 = float32_ ## name (fsth0, fsth1, &env->active_fpu.fp_status); \
update_fcr31(env); \
- if (GET_FP_CAUSE(env->active_fpu.fcr31) & FP_INVALID) { \
- wt2 = FLOAT_QNAN32; \
- wth2 = FLOAT_QNAN32; \
- } \
return ((uint64_t)wth2 << 32) | wt2; \
}