vpp_lib.h

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void readmemh(std::string fname, ULLONG* mem, ULLONG astart, ULLONG afinish)
{
    std::ifstream ifs (fname.c_str() , std::ifstream::in);
    ULLONG val;
    for (ULLONG i = astart; i <= afinish; i++)
    {
        if (ifs >> std::hex >> val)
        {
            mem[i] = val;   
        }
        else
        {
            std::cerr << "Cannot read file: " << fname << ", addr: " << i << std::endl;
            ifs.close();
            return;
        }
    }
    ifs.close();
    //std::cout << "LUT file: " << fname << " read out successfully." << std::endl;
}