Enum ContractRegister 

#[repr(u8)]
pub enum ContractRegister {
    Zero = 0,
    Ra = 1,
    Sp = 2,
    T0 = 5,
    T1 = 6,
    T2 = 7,
    S0 = 8,
    S1 = 9,
    A0 = 10,
    A1 = 11,
    A2 = 12,
    A3 = 13,
    A4 = 14,
    A5 = 15,
    A6 = 16,
    A7 = 17,
    S2 = 18,
    S3 = 19,
    S4 = 20,
    S5 = 21,
    S6 = 22,
    S7 = 23,
    S8 = 24,
    S9 = 25,
    S10 = 26,
    S11 = 27,
    T3 = 28,
    T4 = 29,
    T5 = 30,
    T6 = 31,
}

A register type used by contracts.

gp and tp registers are excluded because they are not present in contracts.

Variants

Zero = 0

Always zero: x0

Ra = 1

Return address: x1

Sp = 2

Stack pointer: x2

T0 = 5

Temporary/alternate return address: x5

T1 = 6

Temporary: x6

T2 = 7

Temporary: x7

S0 = 8

Saved register/frame pointer: x8

S1 = 9

Saved register: x9

A0 = 10

Function argument/return value: x10

A1 = 11

Function argument/return value: x11

A2 = 12

Function argument: x12

A3 = 13

Function argument: x13

A4 = 14

Function argument: x14

A5 = 15

Function argument: x15

A6 = 16

Function argument: x16

A7 = 17

Function argument: x17

S2 = 18

Saved register: x18

S3 = 19

Saved register: x19

S4 = 20

Saved register: x20

S5 = 21

Saved register: x21

S6 = 22

Saved register: x22

S7 = 23

Saved register: x23

S8 = 24

Saved register: x24

S9 = 25

Saved register: x25

S10 = 26

Saved register: x26

S11 = 27

Saved register: x27

T3 = 28

Temporary: x28

T4 = 29

Temporary: x29

T5 = 30

Temporary: x30

T6 = 31

Temporary: x31

Trait Implementations

impl Clone for ContractRegister

fn clone(&self) -> ContractRegister

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ContractRegister

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

Formats the value using the given formatter.

impl Default for ContractRegister

fn default() -> Self

Returns the “default value” for a type.

impl Display for ContractRegister

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

Formats the value using the given formatter.

impl PartialEq for ContractRegister

fn eq(&self, other: &Self) -> 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 Register for ContractRegister

const ZERO: Self = Self::Zero

Zero register

const SP: Self = Self::Sp

Stack pointer register

const RA: Self = Self::Ra

Return address register

const A0: Self = Self::A0

Function argument register a0

const A1: Self = Self::A1

Function argument register a1

type Type = u64

Register type.

fn from_bits(bits: u8) -> Option<Self>

Create a register from its bit representation

const XLEN: u8 = <Self::Type>::BITS

Whether this is RVE variant with the number of general purpose registers reduced to 16 XLEN

impl RegisterFile<ContractRegister> for ContractRegisters

fn read(&self, reg: ContractRegister) -> u64

Read register value

fn write(&mut self, reg: ContractRegister, value: u64)

Write register value

impl ZcmpRegister for ContractRegister

SAFETY: Self::from_bits() returns Some() for 1, 8, 9 and 18..=27

const RVE: bool = false

Whether this is RVE variant with the number of general purpose registers reduced to 16

impl Copy for ContractRegister

impl Eq for ContractRegister