Rather than passing an opcode to a helper, fully decode the
operation at translate time. Use clear_tail_16 to zap the
balance of the SVE register with the AdvSIMD write.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200514212831.31248-7-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
43fa36c96c