24 bit integer arithmetic for AVR

This library provides a 24-bit signed integer type, Int24, for Rust. It is designed for use on AVR microcontrollers.

Features

• 24-bit signed integer type (Int24)
• Saturating arithmetic operations: addition, subtraction, multiplication, division
• Bitwise operations: shift left, shift right
• Specialized operations: Shift left and then divide
• Comparison operations
• Conversions to and from i16 and i32
• Most operations are const or have a const variant
• All operations are highly optimized for speed and code size

Usage

To use the Int24 type, add avr-int24 as a dependency to your Cargo.toml

[dependencies]
avr-int24 = "1"

and then use it in your code:

use avr_int24::Int24;

let a = Int24::from_i16(30000);
let b = Int24::from_i16(10000);

let c = a + b;

assert_eq!(c.to_i32(), 40000);

Rust compiler

AVR inline assembly is not stabilized, yet. Therefore, a nightly Rust compiler is required.