diff options
Diffstat (limited to 'fpu/softfloat.c')
| -rw-r--r-- | fpu/softfloat.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/fpu/softfloat.c b/fpu/softfloat.c index 9132d7a..c69cd6b 100644 --- a/fpu/softfloat.c +++ b/fpu/softfloat.c @@ -6793,6 +6793,35 @@ uint32_t float128_to_uint32_round_to_zero(float128 a, float_status *status) } /*---------------------------------------------------------------------------- +| Returns the result of converting the quadruple-precision floating-point value +| `a' to the 32-bit unsigned integer format. The conversion is +| performed according to the IEC/IEEE Standard for Binary Floating-Point +| Arithmetic---which means in particular that the conversion is rounded +| according to the current rounding mode. If `a' is a NaN, the largest +| positive integer is returned. If the conversion overflows, the +| largest unsigned integer is returned. If 'a' is negative, the value is +| rounded and zero is returned; negative values that do not round to zero +| will raise the inexact exception. +*----------------------------------------------------------------------------*/ + +uint32_t float128_to_uint32(float128 a, float_status *status) +{ + uint64_t v; + uint32_t res; + int old_exc_flags = get_float_exception_flags(status); + + v = float128_to_uint64(a, status); + if (v > 0xffffffff) { + res = 0xffffffff; + } else { + return v; + } + set_float_exception_flags(old_exc_flags, status); + float_raise(float_flag_invalid, status); + return res; +} + +/*---------------------------------------------------------------------------- | Returns the result of converting the quadruple-precision floating-point | value `a' to the single-precision floating-point format. The conversion | is performed according to the IEC/IEEE Standard for Binary Floating-Point |