diff options
| author | Bastian Koppelmann <kbastian@mail.uni-paderborn.de> | 2016-03-11 16:03:13 +0100 |
|---|---|---|
| committer | Bastian Koppelmann <kbastian@mail.uni-paderborn.de> | 2016-03-23 09:22:48 +0100 |
| commit | baf410dccac82f446d83bb10509608f59adbd8ee (patch) | |
| tree | e3aac9689814968183a86b7bfa5a0233b533a9de /target-tricore/fpu_helper.c | |
| parent | c433a17141fb2a400ecb656e55d8d21caa2e2390 (diff) | |
target-tricore: add add.f/sub.f instructions
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Message-Id: <1457708597-3025-4-git-send-email-kbastian@mail.uni-paderborn.de>
Diffstat (limited to 'target-tricore/fpu_helper.c')
| -rw-r--r-- | target-tricore/fpu_helper.c | 29 |
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) |