Struct Update 

pub struct Update {
    pub from: &'static str,
    pub into: &'static str,
    pub load: &'static str,
    pub store: &'static str,
    pub commutes: bool,
}

One arithmetic instruction that could work on memory rather than on a register, and the load and the store that would be the rest of the run.

A table for the reason Fold is one, and four names in a row rather than three because the run is three instructions rather than two. The widths of all four have to agree, and writing them out is what makes a row that got one wrong something a reader can see.

Fields

from: &'static str

The arithmetic as the selector wrote it, on two registers.

into: &'static str

The same arithmetic reading one source out of memory and leaving its answer there.

load: &'static str

The load that put the memory’s word in a register.

store: &'static str

The store that put the answer back.

commutes: bool

Whether the two sources may be swapped, which is what lets the load feed either of them.

Trait Implementations

impl Clone for Update

fn clone(&self) -> Update

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Update

impl Debug for Update

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Update

impl PartialEq for Update

fn eq(&self, other: &Update) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Update