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softfloat: add float*_is_zero_or_denormal()

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float*_is_zero_or_denormal() is available for float32, but not for
float64, floatx80 and float128. Fix that.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2011-05-15 14:09:18 +02:00
parent 66fcf8ffcf
commit 587eabfafc
1 changed files with 15 additions and 0 deletions
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15
fpu/softfloat.h
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@ -449,6 +449,11 @@ INLINE int float64_is_any_nan(float64 a)
return ((float64_val(a) & ~(1ULL << 63)) > 0x7ff0000000000000ULL);
}
INLINE int float64_is_zero_or_denormal(float64 a)
{
return (float64_val(a) & 0x7ff0000000000000LL) == 0;
}
INLINE float64 float64_set_sign(float64 a, int sign)
{
return make_float64((float64_val(a) & 0x7fffffffffffffffULL)
@ -538,6 +543,11 @@ INLINE int floatx80_is_zero(floatx80 a)
return (a.high & 0x7fff) == 0 && a.low == 0;
}
INLINE int floatx80_is_zero_or_denormal(floatx80 a)
{
return (a.high & 0x7fff) == 0;
}
INLINE int floatx80_is_any_nan(floatx80 a)
{
return ((a.high & 0x7fff) == 0x7fff) && (a.low<<1);
@ -626,6 +636,11 @@ INLINE int float128_is_zero(float128 a)
return (a.high & 0x7fffffffffffffffLL) == 0 && a.low == 0;
}
INLINE int float128_is_zero_or_denormal(float128 a)
{
return (a.high & 0x7fff000000000000LL) == 0;
}
INLINE int float128_is_any_nan(float128 a)
{
return ((a.high >> 48) & 0x7fff) == 0x7fff &&