qemu/include/fpu
David Hildenbrand 4739318160 softfloat: add float128_is_{normal,denormal}
Needed on s390x, to test for the data class of a number. So it will
gain soon a user.

A number is considered normal if the exponent is neither 0 nor all 1's.
That can be checked by adding 1 to the exponent, and comparing against
>= 2 after dropping an eventual overflow into the sign bit.

While at it, convert the other floatXX_is_normal functions to use a
similar, less error prone calculation, as suggested by Richard H.

Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2019-02-26 14:05:19 +00:00
..
softfloat-macros.h include/fpu/softfloat: Fix compilation with Clang on s390x 2019-01-22 20:48:24 +00:00
softfloat-types.h fpu/softfloat: Specialize on snan_bit_is_one 2018-05-17 15:27:15 -07:00
softfloat.h softfloat: add float128_is_{normal,denormal} 2019-02-26 14:05:19 +00:00