`hex.ptr_wflip_2nd_word`¶

Effectively: wflip (*ptr)+w, value
ptr is a hex[:w/4] that holds an address, which we assume is dw-aligned.

Signature¶

def ptr_wflip_2nd_word ptr, value { ... }

Defined in hex/pointers/xor_to_pointer.fj — lines 177–181 (view on GitHub).

See the complexity glossary for what @, w, dw, dbit, n mean.

Click to view the macro body

def ptr_wflip_2nd_word ptr, value {
    ptr+dbit + ((#w-1)/4)*dw + (#w-1)%4;
    hex.ptr_wflip ptr, value
    ptr+dbit + ((#w-1)/4)*dw + (#w-1)%4;
}