Commit ee56513f authored by DevDoggo's avatar DevDoggo

Done

parent 5fd97f80
......@@ -27,8 +27,8 @@ use address::*;
#[inline(always)]
fn read_u32(addr: u32) -> u32 {
unsafe { core::ptr::read_volatile(addr as *const _) }
//core::ptr::read_volatile(addr as *const _)
// unsafe { core::ptr::read_volatile(addr as *const _) }
core::ptr::read_volatile(addr as *const _)
}
#[inline(always)]
......@@ -101,10 +101,15 @@ fn main() {
// 2. comment out line 30 and uncomment line 31 (essentially omitting the `unsafe`)
// what was the error message and explain why,
//
// >> Call to unsafe function requires unsafe function or block
// ** your answer here **
//
// digging a bit deeper, why do you think `read_volatile` is declared `unsafe`
// (https://doc.rust-lang.org/core/ptr/fn.read_volatile.html, for some food for thought )
//
// >> While volatile will not be re-ordered by the compiler,
// this still doesn't prevent something to start changing the value
// as the program may try to read (since read may not be an atomic operation)
// ** your answer here **
//
// commit your answers (bare4_2)
......
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