hex.sub.sub_hex_shifted_constant (arity 5)

dst[:dst_n] -= const << (4*hex_shift)
const is a constant of size hex[:n_const]

Signature

def sub_hex_shifted_constant n_dst, n_const, dst, const, hex_shift @ shifted_constant, end { ... }

Defined in hex/math.fj — lines 204–210 (view on GitHub).

Complexity

• Time: n_const(4@+12)   + 5@+2

• Space: n_const(2.5@+39) + (dst_n - hex_shift)(1.5@+13) + 4@+29

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

Requires init

The following must be initialised before this macro is invoked:

• hex.sub.init (or hex.init)

Source

Click to view the macro body

def sub_hex_shifted_constant n_dst, n_const, dst, const, hex_shift @ shifted_constant, end {
    hex.sub_shifted n_dst, n_const, dst, shifted_constant, hex_shift
    ;end

  shifted_constant: hex.vec n_const, const
  end:
}

Depends on

• hex.sub_shifted

Used by

• hex.sub.sub_hex_shifted_constant/4

Example uses

• hex.sub.sub_hex_shifted_constant in hex/math.fj

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