This patch adds support for decoding 1-src data processing insns,
and the first user, C5.6.40 CLZ (count leading zeroes).
Signed-off-by: NClaudio Fontana <claudio.fontana@linaro.org>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Reviewed-by: NRichard Henderson <rth@twiddle.net>