Struct Format

pub struct Format {
    pub name: String,
    pub operands: Vec<Operand>,
}

A format describes the operands for an instruction.

Fields

name: String

This name, when combined with the instruction mnemonic, uniquely identifies an instruction. The reference manual uses this name in the “Instruction Operand Encoding” table.

operands: Vec<Operand>

These operands should match the “Instruction” column ing the reference manual.

Implementations

impl Format

pub fn locations(&self) -> impl Iterator<Item = &Location> + '_

Iterate over the operand locations.

pub fn uses_memory(&self) -> Option<Location>

Return the location of the operand that uses memory, if any; return None otherwise.

pub fn uses_variable_register(&self) -> bool

Return true if any of the operands accepts a variable register (i.e., not a fixed register, immediate); return false otherwise.

pub fn operands_by_kind(&self) -> Vec<OperandKind>

Collect into operand kinds.

impl Format

pub fn generate_att_style_operands(&self) -> String

Re-order the Intel-style operand order to accommodate ATT-style printing.

This is an unfortunate necessity to match Cranelift’s current disassembly, which uses AT&T-style printing. The plan is to eventually transition to Intel-style printing (and avoid this awkward reordering) once Cranelift has switched to using this assembler predominantly (TODO).

pub fn generate_rex_encoding(&self, f: &mut Formatter, rex: &Rex)

Trait Implementations

impl Display for Format

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

Formats the value using the given formatter.