Struct Prefixes 

pub struct Prefixes {
    pub group1: Option<Group1Prefix>,
    pub group2: Option<Group2Prefix>,
    pub group3: Option<Group3Prefix>,
    pub group4: Option<Group4Prefix>,
}

The allowed prefixes for an instruction. From the reference manual (section 2.1.1):

Instruction prefixes are divided into four groups, each with a set of allowable prefix codes. For each instruction, it is only useful to include up to one prefix code from each of the four groups (Groups 1, 2, 3, 4). Groups 1 through 4 may be placed in any order relative to each other.

Fields

group1: Option<Group1Prefix>

group2: Option<Group2Prefix>

group3: Option<Group3Prefix>

group4: Option<Group4Prefix>

Implementations

impl Prefixes

pub fn is_empty(&self) -> bool

Check if any prefix is present.

Trait Implementations

impl Default for Prefixes

fn default() -> Prefixes

Returns the “default value” for a type.