1    libdis_test:     66 f3 0f b8 d8     popcntw %ax,%bx
2    libdis_test+0x5: f3 0f b8 d8        popcntl %eax,%ebx
3    libdis_test+0x9: f3 0f b8 18        popcntl (%eax),%ebx
4