diff options
Diffstat (limited to 'include/fpu')
| -rw-r--r-- | include/fpu/softfloat-types.h | 5 | ||||
| -rw-r--r-- | include/fpu/softfloat.h | 38 |
2 files changed, 43 insertions, 0 deletions
diff --git a/include/fpu/softfloat-types.h b/include/fpu/softfloat-types.h index c7ddcab..8a3f20f 100644 --- a/include/fpu/softfloat-types.h +++ b/include/fpu/softfloat-types.h @@ -113,6 +113,11 @@ typedef struct { #define make_float128_init(high_, low_) { .high = high_, .low = low_ } /* + * Software neural-network floating-point types. + */ +typedef uint16_t bfloat16; + +/* * Software IEC/IEEE floating-point underflow tininess-detection mode. */ diff --git a/include/fpu/softfloat.h b/include/fpu/softfloat.h index 863dfc6..68b3cf4 100644 --- a/include/fpu/softfloat.h +++ b/include/fpu/softfloat.h @@ -109,6 +109,7 @@ void float_raise(uint8_t flags, float_status *status); float16 float16_squash_input_denormal(float16 a, float_status *status); float32 float32_squash_input_denormal(float32 a, float_status *status); float64 float64_squash_input_denormal(float64 a, float_status *status); +bfloat16 bfloat16_squash_input_denormal(bfloat16 a, float_status *status); /*---------------------------------------------------------------------------- | Options to indicate which negations to perform in float*_muladd() @@ -348,6 +349,43 @@ static inline bool float16_unordered_quiet(float16 a, float16 b, #define float16_infinity make_float16(0x7c00) /*---------------------------------------------------------------------------- +| Software bfloat16 operations. +*----------------------------------------------------------------------------*/ + +bfloat16 bfloat16_add(bfloat16, bfloat16, float_status *status); +bfloat16 bfloat16_sub(bfloat16, bfloat16, float_status *status); +bfloat16 bfloat16_mul(bfloat16, bfloat16, float_status *status); +bfloat16 bfloat16_div(bfloat16, bfloat16, float_status *status); +bfloat16 bfloat16_muladd(bfloat16, bfloat16, bfloat16, int, + float_status *status); +float16 bfloat16_scalbn(bfloat16, int, float_status *status); +bfloat16 bfloat16_min(bfloat16, bfloat16, float_status *status); +bfloat16 bfloat16_max(bfloat16, bfloat16, float_status *status); +bfloat16 bfloat16_minnum(bfloat16, bfloat16, float_status *status); +bfloat16 bfloat16_maxnum(bfloat16, bfloat16, float_status *status); +bfloat16 bfloat16_minnummag(bfloat16, bfloat16, float_status *status); +bfloat16 bfloat16_maxnummag(bfloat16, bfloat16, float_status *status); +bfloat16 bfloat16_sqrt(bfloat16, float_status *status); +FloatRelation bfloat16_compare(bfloat16, bfloat16, float_status *status); +FloatRelation bfloat16_compare_quiet(bfloat16, bfloat16, float_status *status); + +bfloat16 bfloat16_silence_nan(bfloat16, float_status *status); +bfloat16 bfloat16_default_nan(float_status *status); + +static inline bfloat16 bfloat16_set_sign(bfloat16 a, int sign) +{ + return (a & 0x7fff) | (sign << 15); +} + +#define bfloat16_zero 0 +#define bfloat16_half 0x3f00 +#define bfloat16_one 0x3f80 +#define bfloat16_one_point_five 0x3fc0 +#define bfloat16_two 0x4000 +#define bfloat16_three 0x4040 +#define bfloat16_infinity 0x7f80 + +/*---------------------------------------------------------------------------- | The pattern for a default generated half-precision NaN. *----------------------------------------------------------------------------*/ float16 float16_default_nan(float_status *status); |