title: Location of built in functions Microchip C30 Compiler
body: <p>I am asking this just out of curiosity.</p>
  
  <p>I am using Microchip C30 compiler to develop EEPROM driver code for PIC24F.
  During this I used C30 builtin functions such as
  __builtin_tblwtl(), __builtin_tbloffset etc.
  How can I find the location of builtin functions? From Wiki I found this:</p>
  
  <blockquote>
    <p>"Some compilers (for example, GCC[7]) provide built-in versions of many
    of the functions in the C standard library; that is, the
    implementations of the functions are written into the compiled object
    file, and the program calls the built-in versions instead of the
    functions in the C library shared object file"</p>
  </blockquote>
  
  <p>Does this mean that these functions are written inside the object files of compiler?So does that mean we cannot see it as a code?
  I have searched the entire C30 directory and didn't find these functions.</p>
  
  <p>Thank you</p>