Struct VectorContext 

#[repr(C, align(16))]
pub struct VectorContext {
    pub v: [[u64; 4]; 32],
    pub vtype: u64,
    pub vl: u64,
    pub vstart: u64,
    pub vxrm: u64,
    pub vxsat: u64,
    pub vcsr: u64,
    pub vlenb: u64,
}

Vector context for RISC-V 64-bit (V extension)

Contains all vector registers and vector CSRs. The actual number of bytes used per register depends on the implementation’s VLEN. This structure reserves space for VLEN up to 256 bits.

Fields

v: [[u64; 4]; 32]

Vector registers v0-v31 (up to 256 bits = 32 bytes each) Stored as arrays of u64 for alignment

vtype: u64

Vector type register (vtype)

vl: u64

Vector length register (vl)

vstart: u64

Vector start index register (vstart)

vxrm: u64

Vector fixed-point rounding mode register (vxrm)

vxsat: u64

Vector fixed-point saturation flag (vxsat)

vcsr: u64

Vector control and status register (vcsr) - combines vxrm and vxsat

vlenb: u64

Cached vlenb value (VLEN/8 in bytes)

Implementations

impl VectorContext

pub const fn new() -> Self

Create a new zeroed Vector context

pub unsafe fn save(&mut self)

Save the current Vector state to this context

Safety

This function directly accesses Vector registers. The Vector extension must be enabled (sstatus.VS != Off) before calling this function.

pub unsafe fn restore(&self)

Restore the Vector state from this context

Safety

This function directly accesses Vector registers. The Vector extension must be enabled (sstatus.VS != Off) before calling this function.

Trait Implementations

impl Clone for VectorContext

fn clone(&self) -> VectorContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VectorContext

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

Formats the value using the given formatter.

impl Default for VectorContext

fn default() -> Self

Returns the “default value” for a type.