1.cs

int i = 128;

// Push the value 128 (0x00000080) onto the stack
IL_0001:  ldc.i4      80 00 00 00
// Store our 128 at location 0 (where the compiler has chosen for i to live).
IL_0002:  stloc.0	// i

System.Console.WriteLine(i + 10);
// Push the value of i back onto the stack.
IL_0007:  ldloc.0     // i
// Push 10 (0xA) onto the stack
IL_0008:  ldc.i4.s    0A
// Add the two top values, leaving the result on top of the stack
IL_000A:  add
// Call the static System.Console.WriteLine method, notice we’re passing a 
// parameter by pushing its value onto the stack before a call instruction.
IL_0008:  call        System.Console.WriteLine