Enum Directive

pub enum Directive {
    Orig(Offset<u16, 16>),
    Fill(PCOffset<u16, 16>),
    Blkw(Offset<u16, 16>),
    Stringz(String),
    End,
    External(Label),
}

An enum representing all the possible directives in LC-3 assembly code.

Variants

Orig(Offset<u16, 16>)

An .orig directive.

Operation

Starts a block of assembly.

Syntax

.orig ADDR

Fill(PCOffset<u16, 16>)

A .fill directive.

Operation

Writes some data into the given memory location.

Syntax

.fill DATA .fill LABEL

Blkw(Offset<u16, 16>)

A .blkw directive.

Operation

Saves a provided number of memory locations for writing into.

Syntax

.blkw N

Stringz(String)

A .stringz directive.

Operation

Writes a null-terminated string into the provided location.

Syntax

.stringz "A literal"

End

A .end directive.

Operation

Closes a block started by an .orig.

Syntax

.end

External(Label)

A .external directive.

Operation

Designates that a label is external, meaning it is not defined within the file and must be linked in.

Syntax

.external LABEL

Trait Implementations

impl Clone for Directive

fn clone(&self) -> Directive

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Directive

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

Formats the value using the given formatter.

impl Display for Directive

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

Formats the value using the given formatter.

impl Hash for Directive

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Parse for Directive

fn parse(parser: &mut Parser) -> Result<Self, ParseErr>

Attempt to convert the next sequence of tokens in the parser’s state into a component.

impl PartialEq for Directive

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Directive

impl StructuralPartialEq for Directive