for example :

private uint[] Regs = new uint[5];

public aaaaa() 
{ 
this.Regs[0] = 65456988798; 
this.Regs[1] = -271723579; /// error decompile value 
this.Regs[2] = -1732584194; /// error decompile value 
this.Regs[3] = 4656546545; 
this.Regs[4] = -145689734; /// error decompile value

}

try this simple source code :

        private uint A;
        private void Form1_Load(object sender, EventArgs e)
        {
            A = 4294967295;
        }

compile it to exe file .

now decompile it ... you will see this ..

        private uint A;

        private void Form1_Load(object sender, EventArgs e)
        {
            this.A = -1;
        }​