Trait Csrs 

pub trait Csrs<Reg, CustomError = CustomErrorPlaceholder>
where
    Reg: Register,
{
    // Required methods
    fn read_csr(
        &self,
        csr_index: u16,
    ) -> Result<Reg::Type, CsrError<CustomError>>;
    fn write_csr(
        &mut self,
        csr_index: u16,
        value: Reg::Type,
    ) -> Result<(), CsrError<CustomError>>;
    fn process_csr_read(
        &self,
        csr_index: u16,
        raw_value: Reg::Type,
    ) -> Result<Reg::Type, CsrError<CustomError>>;
    fn process_csr_write(
        &mut self,
        csr_index: u16,
        write_value: Reg::Type,
    ) -> Result<Reg::Type, CsrError<CustomError>>;

    // Provided method
    fn privilege_level(&self) -> PrivilegeLevel { ... }
}

CSRs (Control and Status Registers)

Required Methods

fn read_csr(&self, csr_index: u16) -> Result<Reg::Type, CsrError<CustomError>>

Reads register value

fn write_csr( &mut self, csr_index: u16, value: Reg::Type, ) -> Result<(), CsrError<CustomError>>

Writes register value

fn process_csr_read( &self, csr_index: u16, raw_value: Reg::Type, ) -> Result<Reg::Type, CsrError<CustomError>>

Process CSR read.

Must proxy calls to ExecutableInstruction::prepare_csr_read() of the root instruction and return the output value on success. The method is present on Csrs to break cycles in the type system.

fn process_csr_write( &mut self, csr_index: u16, write_value: Reg::Type, ) -> Result<Reg::Type, CsrError<CustomError>>

Process CSR write.

Must proxy calls to ExecutableInstruction::prepare_csr_write() of the root instruction and return the output value on success. The method is present on Csrs to break cycles in the type system.

Provided Methods

fn privilege_level(&self) -> PrivilegeLevel

Current privilege level

Implementors