airfrog_core/arm/
mod.rs

1// Copyright (C) 2025 Piers Finlayson <piers@piers.rocks>
2//
3// MIT License
4
5//! Contains ARM specific objects and routines
6
7pub mod ap;
8pub mod dp;
9pub mod map;
10pub mod register;
11
12use core::fmt;
13
14use dp::IdCode;
15
16/// ARM Cortex core type
17#[derive(Debug, Clone, Copy, PartialEq, Eq)]
18pub enum Cortex {
19    /// Cortex-M0
20    M0,
21    /// Cortex-M3
22    M3,
23    /// Cortex-M4
24    M4,
25    /// Cortex-M33
26    M33,
27}
28
29impl Cortex {
30    pub const IDCODE_M0: IdCode = IdCode::from_u32(0x0BC12477);
31    pub const IDCODE_M3: IdCode = IdCode::from_u32(0x1BA01477);
32    pub const IDCODE_M4: IdCode = IdCode::from_u32(0x2BA01477);
33    pub const IDCODE_M33: IdCode = IdCode::from_u32(0x4C013477);
34
35    /// Returns the DPIDR IDCODE for this core type
36    pub fn idcode(&self) -> IdCode {
37        match self {
38            Cortex::M0 => Self::IDCODE_M0,
39            Cortex::M3 => Self::IDCODE_M3,
40            Cortex::M4 => Self::IDCODE_M4,
41            Cortex::M33 => Self::IDCODE_M33,
42        }
43    }
44
45    /// Returns the core type as a string
46    pub fn as_str(&self) -> &'static str {
47        match self {
48            Cortex::M0 => "Cortex-M0",
49            Cortex::M3 => "Cortex-M3",
50            Cortex::M4 => "Cortex-M4",
51            Cortex::M33 => "Cortex-M33",
52        }
53    }
54
55    pub fn from_idcode(idcode: IdCode) -> Option<Cortex> {
56        match idcode {
57            Self::IDCODE_M0 => Some(Cortex::M0),
58            Self::IDCODE_M3 => Some(Cortex::M3),
59            Self::IDCODE_M4 => Some(Cortex::M4),
60            Self::IDCODE_M33 => Some(Cortex::M33),
61            _ => None,
62        }
63    }
64}
65
66impl fmt::Display for Cortex {
67    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
68        write!(f, "ARM {}", self.as_str())
69    }
70}
airfrog_core/arm/mod.rs

airfrog_core/arm/
mod.rs
