Function panda_sys::helper_atomic_cmpxchgw_be_mmu

pub unsafe extern "C" fn helper_atomic_cmpxchgw_be_mmu(
    env: *mut CPUX86State, 
    addr: target_ulong, 
    cmpv: u32, 
    newv: u32, 
    oi: TCGMemOpIdx, 
    retaddr: usize
) -> u32