PIC12F675 < internal oscillator

[Slynge]

Does anybody know how to set up the oscillator calibration value on the PIC12F675 ? There's this guy that uses this code with the MikroC - compiler and the code is like this:

//////////////////////////////////////////////////////////////////////
// Extract oscillator calibration value from location 0x3ff and use.
void get_set_osc_cal(void) {
#ifndef debug
asm {
bsf STATUS, RP0 // ; Bank 1
call 0x3ff // ; Get the cal value
movwf OSCCAL // ; Calibrate
bcf STATUS, RP0 // ; Bank 0
}
#endif
}
And his homepage is:
http://www.best-microcontroller-projects.com/12F675.html
thanks,

[Ttelmah]

It is done automatically for you. If the internal oscillator is selected, at the very start of the code generated for the 'main', the compiler automatically calls the 0x3FF location, and puts the value returned into OSCCAL.
For example, this is the first few lines of the program code, generated, for a 12F675, wth the internal RC oscillator selected: