Message ID | 1294392387-24300-2-git-send-email-peter.maydell@linaro.org |
---|---|
State | New |
Headers | show |
On Fri, Jan 07, 2011 at 09:26:24AM +0000, Peter Maydell wrote: > Add a utility function to softfloat to test whether a float32 > is zero or denormal. > > Signed-off-by: Peter Maydell <peter.maydell@linaro.org> > --- > fpu/softfloat.h | 5 +++++ > 1 files changed, 5 insertions(+), 0 deletions(-) Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> > diff --git a/fpu/softfloat.h b/fpu/softfloat.h > index 15052cc..1acf7af 100644 > --- a/fpu/softfloat.h > +++ b/fpu/softfloat.h > @@ -336,6 +336,11 @@ INLINE int float32_is_any_nan(float32 a) > return ((float32_val(a) & ~(1 << 31)) > 0x7f800000UL); > } > > +INLINE int float32_is_zero_or_denormal(float32 a) > +{ > + return (float32_val(a) & 0x7f800000) == 0; > +} > + > #define float32_zero make_float32(0) > #define float32_one make_float32(0x3f800000) > #define float32_ln2 make_float32(0x3f317218) > -- > 1.6.3.3 > > >
diff --git a/fpu/softfloat.h b/fpu/softfloat.h index 15052cc..1acf7af 100644 --- a/fpu/softfloat.h +++ b/fpu/softfloat.h @@ -336,6 +336,11 @@ INLINE int float32_is_any_nan(float32 a) return ((float32_val(a) & ~(1 << 31)) > 0x7f800000UL); } +INLINE int float32_is_zero_or_denormal(float32 a) +{ + return (float32_val(a) & 0x7f800000) == 0; +} + #define float32_zero make_float32(0) #define float32_one make_float32(0x3f800000) #define float32_ln2 make_float32(0x3f317218)
Add a utility function to softfloat to test whether a float32 is zero or denormal. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- fpu/softfloat.h | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)