diff options
Diffstat (limited to 'fpu')
| -rw-r--r-- | fpu/softfloat-specialize.c.inc | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/fpu/softfloat-specialize.c.inc b/fpu/softfloat-specialize.c.inc index dc4ea33c09..c2f87addb2 100644 --- a/fpu/softfloat-specialize.c.inc +++ b/fpu/softfloat-specialize.c.inc @@ -266,6 +266,25 @@ bool float16_is_quiet_nan(float16 a_, float_status *status) } /*---------------------------------------------------------------------------- +| Returns 1 if the bfloat16 value `a' is a quiet +| NaN; otherwise returns 0. +*----------------------------------------------------------------------------*/ + +bool bfloat16_is_quiet_nan(bfloat16 a_, float_status *status) +{ + if (no_signaling_nans(status)) { + return bfloat16_is_any_nan(a_); + } else { + uint16_t a = a_; + if (snan_bit_is_one(status)) { + return (((a >> 6) & 0x1FF) == 0x1FE) && (a & 0x3F); + } else { + return ((a >> 6) & 0x1FF) == 0x1FF; + } + } +} + +/*---------------------------------------------------------------------------- | Returns 1 if the half-precision floating-point value `a' is a signaling | NaN; otherwise returns 0. *----------------------------------------------------------------------------*/ @@ -285,6 +304,25 @@ bool float16_is_signaling_nan(float16 a_, float_status *status) } /*---------------------------------------------------------------------------- +| Returns 1 if the bfloat16 value `a' is a signaling +| NaN; otherwise returns 0. +*----------------------------------------------------------------------------*/ + +bool bfloat16_is_signaling_nan(bfloat16 a_, float_status *status) +{ + if (no_signaling_nans(status)) { + return 0; + } else { + uint16_t a = a_; + if (snan_bit_is_one(status)) { + return ((a >> 6) & 0x1FF) == 0x1FF; + } else { + return (((a >> 6) & 0x1FF) == 0x1FE) && (a & 0x3F); + } + } +} + +/*---------------------------------------------------------------------------- | Returns 1 if the single-precision floating-point value `a' is a quiet | NaN; otherwise returns 0. *----------------------------------------------------------------------------*/ |