Futex v1 cmd for FUTEX_WAKE_OP val3 command.
pub const FUTEX_WAKE_OP_CMD = enum(u3)
pub const FUTEX_WAKE_OP_CMD = enum(u3) {
/// uaddr2 = oparg
SET = 0,
/// uaddr2 += oparg
ADD = 1,
/// uaddr2 |= oparg
OR = 2,
/// uaddr2 &= ~oparg
ANDN = 3,
/// uaddr2 ^= oparg
XOR = 4,
}