pmullb z17.q, z21.d, z27.d
pmullb z0.q, z0.d, z0.d
+
+pmullb z17.h, z21.b, z27.b
pmullb z0.h, z0.b, z0.b
pmullb z0.d, z0.s, z0.s
pmullt z17.q, z21.d, z27.d
pmullt z0.q, z0.d, z0.d
+
+pmullt z17.h, z21.b, z27.b
pmullt z0.h, z0.b, z0.b
pmullt z0.d, z0.s, z0.s