# CS_ARCH_AARCH64, 0, None

0x20,0x18,0x02,0x2e == ext	v0.8b, v1.8b, v2.8b, #{{0x3|3}}
0x20,0x18,0x02,0x6e == ext	v0.16b, v1.16b, v2.16b, #{{0x3|3}}