Enum VexLength

pub enum VexLength {
    L128,
    L256,
    LZ,
    LIG,
}

Contains allowed VEX length definitions.

VEX encodes these in the L bit field, a single bit with 128-bit = 0 and 256-bit = 1. For convenience, we also include the LIG and LZ syntax, used by the reference manual, and always set these to 0.

Variants

L128

Set VEX.L to 0 (128-bit).

L256

Set VEX.L to 1 (256-bit).

LZ

Set VEX.L to 0, but not necessarily for 128-bit operation. From the reference manual: “The VEX.L must be encoded to be 0B, an #UD occurs if VEX.L is not zero.”

LIG

The VEX.L bit is ignored (e.g., for floating point scalar instructions). This assembler will emit 0.

Implementations

impl VexLength

pub fn bits(&self) -> u8

Encode the L bit.

Trait Implementations

impl Display for VexLength

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

Formats the value using the given formatter.