These 14 instructions are used in the dimmer / controller program.

register     =name or location
bit          =name or location(0-7)
destination  =W or F for result of operation
literal      =0-255

Instruction    
bcf register, bit clear bit in register
bsf register, bit set bit in register
btfsc register, bit test bit, skip if clear
btfss register, bit test bit, skip if set
     
clrf register clear register
decfsz register, destination decrement register, skip if zero
subwf register, destination subtract value in W from register
     
movlw literal move literal to W
movwf register move value in W to register
     
call label call subroutine
return   return from subroutine
goto label jump to program location
     
sleep   put processor in low power mode
nop   no operation

Refer to Microchip data sheets for further details  www.microchip.com