Enum Trap 

pub enum Trap {
    IllegalInstruction {
        pc: i64,
        cause: DecodeError,
    },
    Memory {
        pc: i64,
        cause: MemoryError,
    },
    DivideByZero {
        pc: i64,
    },
    Overflow {
        pc: i64,
        op: Opcode,
    },
    PcOutOfRange {
        pc: i64,
    },
    Ecall {
        pc: i64,
    },
    Privilege {
        pc: i64,
        needed: Priv,
    },
    PageFault {
        pc: i64,
        addr: i64,
    },
    StepLimit {
        pc: i64,
        steps: u64,
    },
}

Something stopped execution.

Variants

IllegalInstruction

The word at pc is not a valid instruction.

Fields

pc: i64

Where it happened.

cause: DecodeError

Why the decode failed.

Memory

A memory access failed.

Fields

pc: i64

Where it happened.

cause: MemoryError

Why the access failed.

DivideByZero

Division or remainder by zero.

Fields

pc: i64

Where it happened.

Overflow

A result left the 27-trit range.

Fields

pc: i64

Where it happened.

op: Opcode

Which operation overflowed.

PcOutOfRange

Control flow left the address space.

Fields

pc: i64

Where it happened.

Ecall

An ecall. Not a fault: the deliberate way into the operating system.

Fields

pc: i64

Where it happened.

Privilege

An instruction needed a privilege the machine was not at.

Fields

pc: i64

Where it happened.

needed: Priv

The level the instruction required.

PageFault

Address translation failed.

Fields

pc: i64

Where it happened.

addr: i64

The virtual address that could not be translated.

StepLimit

Cpu::run reached its step budget without halting.

Fields

pc: i64

Where it was when the budget ran out.

steps: u64

How many steps had run.

Trait Implementations

impl Clone for Trap

fn clone(&self) -> Trap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Trap

impl Debug for Trap

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

Formats the value using the given formatter.

impl Display for Trap

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

Formats the value using the given formatter.

impl Eq for Trap

impl Error for Trap

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for Trap

fn eq(&self, other: &Trap) -> 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 StructuralPartialEq for Trap