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https://github.com/ferrous-systems/embedded-trainings-2020.git
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30 lines
526 B
Rust
30 lines
526 B
Rust
#![no_main]
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#![no_std]
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use cortex_m::asm;
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use cortex_m_rt::entry;
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use panic_log as _; // panic handler
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#[entry]
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fn main() -> ! {
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// board initialization
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dk::init().unwrap();
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log::info!("fib(100) = {:?}", fib(100));
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loop {
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asm::bkpt();
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}
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}
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#[inline(never)]
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fn fib(n: u32) -> u32 {
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// allocate and initialize one kilobyte of stack memory to provoke stack overflow
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let _use_stack = [0xAA; 1024];
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if n < 2 {
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1
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} else {
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fib(n - 1) + fib(n - 2) // recursion
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}
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}
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