hex.xor_byte_to_ptr (arity 3)

Effectively:  hex.xor *ptr[:n], hex[:2n]
ptr is a hex[:w/4] that holds an address, which we assume is an hex-variable, which is dw-aligned.

Signature

def xor_byte_to_ptr n, ptr, hex { ... }

Defined in hex/pointers/xor_to_pointer.fj — lines 63–66 (view on GitHub).

Complexity

• Time: n(w(0.5@+2)  + 19@+38)

• Space: n(w(0.9@+17) + 15@+207)

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

Source

Click to view the macro body

def xor_byte_to_ptr n, ptr, hex {
    rep(n, i) .pointers.xor_byte_to_ptr_and_inc ptr, hex + i*2*dw
    .ptr_sub ptr, n
}

Depends on

• hex.ptr_sub

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