se.cherkasov
bdf23de8db
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Full NES emulation: CPU, PPU, APU, 47 mappers, iNES/NES 2.0 parsing. GTK4 desktop client with HeaderBar, pixel-perfect Cairo rendering, drag-and-drop ROM loading, and keyboard shortcuts. 187 tests covering core emulation, mappers, and runtime.
29 lines
856 B
Rust
29 lines
856 B
Rust
use crate::CpuError;
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use core::fmt;
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#[derive(Debug)]
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#[non_exhaustive]
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pub enum RuntimeError {
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RomParse(String),
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MapperInit(String),
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Cpu(CpuError),
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BufferTooSmall { expected: usize, got: usize },
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InvalidState(String),
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}
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impl fmt::Display for RuntimeError {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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match self {
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Self::RomParse(e) => write!(f, "ROM parse error: {e}"),
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Self::MapperInit(e) => write!(f, "mapper init error: {e}"),
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Self::Cpu(e) => write!(f, "CPU error: {e:?}"),
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Self::BufferTooSmall { expected, got } => {
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write!(f, "buffer too small: expected {expected} bytes, got {got}")
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}
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Self::InvalidState(e) => write!(f, "invalid runtime state: {e}"),
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}
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}
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}
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impl std::error::Error for RuntimeError {}
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