diff options
| -rw-r--r-- | fpu/softfloat-specialize.h | 17 | ||||
| -rw-r--r-- | fpu/softfloat.c | 4 |
2 files changed, 18 insertions, 3 deletions
diff --git a/fpu/softfloat-specialize.h b/fpu/softfloat-specialize.h index 1c0b12b..2d025bf 100644 --- a/fpu/softfloat-specialize.h +++ b/fpu/softfloat-specialize.h @@ -120,6 +120,23 @@ float16 float16_maybe_silence_nan(float16 a_) } /*---------------------------------------------------------------------------- +| Returns the result of converting the half-precision floating-point NaN +| `a' to the canonical NaN format. If `a' is a signaling NaN, the invalid +| exception is raised. +*----------------------------------------------------------------------------*/ + +static commonNaNT float16ToCommonNaN( float16 a STATUS_PARAM ) +{ + commonNaNT z; + + if ( float16_is_signaling_nan( a ) ) float_raise( float_flag_invalid STATUS_VAR ); + z.sign = float16_val(a) >> 15; + z.low = 0; + z.high = ((bits64) float16_val(a))<<54; + return z; +} + +/*---------------------------------------------------------------------------- | Returns the result of converting the canonical NaN `a' to the half- | precision floating-point format. *----------------------------------------------------------------------------*/ diff --git a/fpu/softfloat.c b/fpu/softfloat.c index 80d8cc4..3abd170 100644 --- a/fpu/softfloat.c +++ b/fpu/softfloat.c @@ -2761,9 +2761,7 @@ float32 float16_to_float32(float16 a, flag ieee STATUS_PARAM) if (aExp == 0x1f && ieee) { if (aSig) { - /* Make sure correct exceptions are raised. */ - float32ToCommonNaN(a STATUS_VAR); - aSig |= 0x200; + return commonNaNToFloat32(float16ToCommonNaN(a STATUS_VAR) STATUS_VAR); } return packFloat32(aSign, 0xff, aSig << 13); } |