calibration clock 12f508

[Bruce]

PBP handles this for you. It's very easy to verify.

Compile this for a 12F508;

Main:
    HIGH 0
    pause 500
    low 0
    pause 500
    goto Main

    End

Now simply open the .LST file, and look for it.

ORG 0 ; Start at 0
movwf OSCCAL ; Set oscillator calibration

Look in your PBP manual, section 2.5.1, PICmicro MCU Specific Issues.