Yes ...

a ( working ...) typical 12F683 INTOSC Header ...

Code:
@ __config _INTRC_OSC_NOCLKOUT &_FCMEN_OFF &_IESO_OFF & _WDT_ON &_PWRTE_ON & _MCLRE_OFF & _CP_OFF

 OSCCON = %01110111					' Internal Clock 8 Mhz
 
 CMCON0 = 7
 VRCON   = 0
 ADCON0 = 0
 ANSEL   = 0
and NO "Define Osccal" to write ...

You have [no]some[/no] LOTS OF good reading to do, this evening ... BEFORE sleeping.

Alain