diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2011-02-10 11:28:56 +0000 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2011-02-10 18:28:09 +0100 |
| commit | bb4d4bb376c6ae4d2dfa6e59dfa4e87a75d3a672 (patch) | |
| tree | 38b1c3f69f028c82493d0117a8ec854451af838a /fpu/softfloat.h | |
| parent | d1a1eb7472b40950dac176a191f3d5d4ae980ecc (diff) | |
softfloat: Add float16 type and float16 NaN handling functions
Add a float16 type to softfloat, rather than using bits16 directly.
Also add the missing functions float16_is_quiet_nan(),
float16_is_signaling_nan() and float16_maybe_silence_nan(),
which are needed for the float16 conversion routines.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'fpu/softfloat.h')
| -rw-r--r-- | fpu/softfloat.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/fpu/softfloat.h b/fpu/softfloat.h index 4a5345ceca..2296adb4c6 100644 --- a/fpu/softfloat.h +++ b/fpu/softfloat.h @@ -120,6 +120,11 @@ enum { //#define USE_SOFTFLOAT_STRUCT_TYPES #ifdef USE_SOFTFLOAT_STRUCT_TYPES typedef struct { + uint16_t v; +} float16; +#define float16_val(x) (((float16)(x)).v) +#define make_float16(x) __extension__ ({ float16 f16_val = {x}; f16_val; }) +typedef struct { uint32_t v; } float32; /* The cast ensures an error if the wrong type is passed. */ @@ -131,10 +136,13 @@ typedef struct { #define float64_val(x) (((float64)(x)).v) #define make_float64(x) __extension__ ({ float64 f64_val = {x}; f64_val; }) #else +typedef uint16_t float16; typedef uint32_t float32; typedef uint64_t float64; +#define float16_val(x) (x) #define float32_val(x) (x) #define float64_val(x) (x) +#define make_float16(x) (x) #define make_float32(x) (x) #define make_float64(x) (x) #endif @@ -253,8 +261,15 @@ float128 int64_to_float128( int64_t STATUS_PARAM ); /*---------------------------------------------------------------------------- | Software half-precision conversion routines. *----------------------------------------------------------------------------*/ -bits16 float32_to_float16( float32, flag STATUS_PARAM ); -float32 float16_to_float32( bits16, flag STATUS_PARAM ); +float16 float32_to_float16( float32, flag STATUS_PARAM ); +float32 float16_to_float32( float16, flag STATUS_PARAM ); + +/*---------------------------------------------------------------------------- +| Software half-precision operations. +*----------------------------------------------------------------------------*/ +int float16_is_quiet_nan( float16 ); +int float16_is_signaling_nan( float16 ); +float16 float16_maybe_silence_nan( float16 ); /*---------------------------------------------------------------------------- | Software IEC/IEEE single-precision conversion routines. |