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Diffstat (limited to 'target-tricore/fpu_helper.c')
-rw-r--r--target-tricore/fpu_helper.c29
1 files changed, 28 insertions, 1 deletions
diff --git a/target-tricore/fpu_helper.c b/target-tricore/fpu_helper.c
index 7c79c9c6df..747d897525 100644
--- a/target-tricore/fpu_helper.c
+++ b/target-tricore/fpu_helper.c
@@ -47,7 +47,7 @@ static inline bool f_is_denormal(float32 arg)
return float32_is_zero_or_denormal(arg) && !float32_is_zero(arg);
}
-static inline void f_update_psw_flags(CPUTriCoreState *env, uint8_t flags)
+static void f_update_psw_flags(CPUTriCoreState *env, uint8_t flags)
{
uint8_t some_excp = 0;
set_float_exception_flags(0, &env->fp_status);
@@ -79,3 +79,30 @@ static inline void f_update_psw_flags(CPUTriCoreState *env, uint8_t flags)
env->FPU_FS = some_excp;
}
+
+#define FADD_SUB(op) \
+uint32_t helper_f##op(CPUTriCoreState *env, uint32_t r1, uint32_t r2) \
+{ \
+ float32 arg1 = make_float32(r1); \
+ float32 arg2 = make_float32(r2); \
+ uint32_t flags; \
+ float32 f_result; \
+ \
+ f_result = float32_##op(arg2, arg1, &env->fp_status); \
+ flags = f_get_excp_flags(env); \
+ if (flags) { \
+ /* If the output is a NaN, but the inputs aren't, \
+ we return a unique value. */ \
+ if ((flags & float_flag_invalid) \
+ && !float32_is_any_nan(arg1) \
+ && !float32_is_any_nan(arg2)) { \
+ f_result = ADD_NAN; \
+ } \
+ f_update_psw_flags(env, flags); \
+ } else { \
+ env->FPU_FS = 0; \
+ } \
+ return (uint32_t)f_result; \
+}
+FADD_SUB(add)
+FADD_SUB(sub)