File content as of revision 14:2f89279586cb:

#include "HomemadeMbed.hpp"
#include "Utility.hpp"
#include <cstdio>

namespace homemade_mbed
{
    unsigned int read_bits(unsigned int* address_4_bytes, const int start_bit, const int stop_bit)
    {
        const unsigned int all_4_bytes = *address_4_bytes;
        const unsigned int left_shifted = all_4_bytes << (31 - stop_bit);
        const unsigned int right_shifted = left_shifted >> (31 - stop_bit + start_bit);
        return right_shifted;
    }
    
    void write_bits(unsigned int* address_4_bytes, const int start_bit, const int stop_bit, const unsigned int new_value)
    {
        //std::printf("write_bits()\r\n");

        const unsigned int all_4_bytes = *address_4_bytes;
        const unsigned int new_bits = utility::update_bits(all_4_bytes, start_bit, stop_bit, new_value);
        *address_4_bytes = new_bits;
    }
}