hex.write_byte (arity 3)

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

Signature

def write_byte n, ptr, src { ... }

Defined in hex/pointers/write_pointers.fj — lines 77–80 (view on GitHub).

Complexity

• Time: n(w(0.75@+5)  + 26@+51)

• Space: n(w(1.13@+32) + 22@+255)

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

Source

Click to view the macro body

def write_byte n, ptr, src {
    rep(n, i) .write_byte_and_inc ptr, src + i*2*dw
    .ptr_sub ptr, n
}

Depends on

• hex.ptr_sub

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