schip8/
errors.rs

1use thiserror::Error;
2
3/// The error types used by the interpreter
4#[derive(Error, Debug)]
5pub enum ChipError {
6    /// This error occurs when attempting to access out of bounds memory
7    #[error("The address {address:?} is out of bounds. The limits are: (0, {limit:?})")]
8    AddressOutOfBounds { address: usize, limit: usize },
9
10    /// Thrown by the CPU when attempting to pop() from an empty stack
11    #[error("Attempted to remove item from an empty stack")]
12    StackUnderflow(),
13
14    /// Thrown by the CPU attempting to push() to a full stack
15    #[error("Stack size limit exceeded. Maximum size: {0}")]
16    StackOverflow(usize),
17
18    /// Thrown by the CPU when attempting to execute an unknown opcode
19    #[error("The opcode {:#06x} is not implemented", .opcode)]
20    OpcodeNotImplemented { opcode: u16 },
21}
schip8/errors.rs

schip8/
errors.rs
