Struct ZcmpUrlist 

pub struct ZcmpUrlist<Reg> { /* private fields */ }

Zcmp register list selector.

Only valid values (4..=15, further restricted to 4..=6 for RVE) are representable; construct via ZcmpUrlist::try_from_raw.

Implementations

impl<Reg> ZcmpUrlist<Reg>

where Reg: ZcmpRegister,

pub const fn try_from_raw(raw: u8) -> Option<Self>

where Reg: ZcmpRegister,

Create a validated ZcmpUrlist from a raw u8 value.

Returns None if raw is reserved (0..=3), out of range (>15), or names a register list inaccessible under the current ISA variant (e.g., urlist > 6 under RVE, where only ra, s0, s1 exist).

pub const fn as_u8(self) -> u8

Convert to the raw u8 discriminant (4..=15).

pub fn reg_list(self) -> impl Iterator<Item = Reg>

Iterator over the absolute register numbers in this list.

Order matches the spec push/pop order: ra first, then s0 ascending. ra=x1, s0=x8, s1=x9, s2=x18..s9=x25, s10=x26, s11=x27.

Note: urlist=15 is {ra, s0-s11} (13 registers, including s10); {ra, s0-s10} has no encoding.

pub const fn stack_adj_base(self) -> u32

Stack adjustment base in bytes.

The minimum stack frame size for this register list, rounded up to a 16-byte alignment. The full stack adjustment is: stack_adj_base + spimm * 16.

Values sourced from the Zcmp spec Table 3.

Trait Implementations

impl<Reg: Clone> Clone for ZcmpUrlist<Reg>

fn clone(&self) -> ZcmpUrlist<Reg>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<Reg: Debug> Debug for ZcmpUrlist<Reg>

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

Formats the value using the given formatter.

impl<Reg> Display for ZcmpUrlist<Reg>

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

Formats the value using the given formatter.

impl<Reg: PartialEq> PartialEq for ZcmpUrlist<Reg>

fn eq(&self, other: &ZcmpUrlist<Reg>) -> 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<Reg: Copy> Copy for ZcmpUrlist<Reg>

impl<Reg: Eq> Eq for ZcmpUrlist<Reg>

impl<Reg> StructuralPartialEq for ZcmpUrlist<Reg>