The helpers use the new re-factored muladd support in SoftFloat for
the float16 work.
Signed-off-by: NAlex Bennée <alex.bennee@linaro.org>
Message-id: 20180227143852.11175-15-alex.bennee@linaro.org
Reviewed-by: NRichard Henderson <richard.henderson@linaro.org>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>