Function timed_read 

pub fn timed_read<const N: usize>(
    memory: &mut TracingMemory,
    address_space: u32,
    ptr: u32,
) -> (u32, [u8; N])

Atomic read operation which increments the timestamp by 1. Returns (t_prev, [ptr:4]_{address_space}) where t_prev is the timestamp of the last memory access.