Allow target access to routines using the minmax flags.
Make the existing min/max wrappers inline.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
There is only one NaN fractional encoding for E4M3. Retain the
incoming sign, but force the outgoing fraction to the unique value.
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Rename get_float_detect_tininess to get_tininess_before_rounding
and move to softfloat.c, as there are no external users.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We have, in the past, used any of uint8_t, uint16_t or int
to hold the set of exception flags. Use a typedef instead.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Avoid exponent overflow as well as checking that we don't lose information with
opposing scaling. Use it in partsN(scalbn) and partsN(round_to_int_normal).
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Now that we've exposed enough infrastructure, this can be
implemented in the backend that needs it.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The float16, bfloat16 and float128 paths are not so
important that they require forced optimization.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Share the float32->float64 bias adjustment from both
the normal and denormal paths.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Export the unpacking and repacking into the various formats.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Export most of the FloatFmt structures.
Skip float16_params_ahp and the floatx80 precisions.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Begin exposing the intermediate representation of softfloat.
Start with just the representation structures.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This is almost always used with a constant FloatFmt,
so inlining pulls the constants into the shifts.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This is almost always used with a constant FloatFmt,
so inlining pulls the constants into the shifts.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Rename and return FloatParts128 structure.
Use switch instead of 2 ifs.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We must change float32 and float64 at once because
of the DEFINE_S390_DIVIDE_TO_INTEGER macro.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
