Add Literal and W
Add W and f (result stored in W) e.g: ADDWF 0C,0
Add W and f (result stored in f) e.g: ADDWF 0C,1
AND Literal with W e.g: ANDLW 40h
AND W with f (result stored in W) e.g: ANDWF 0C,0
AND W with f (result stored in f) e.g: ANDWF 0C,1
Bit Clear f bit0 to bit7 i.e: 0 to 7 e.g: BCF 1E,7
Bit Set f bit0 to bit7 i.e: 0 to 7 e.g: BSF 1F,3
Bit Test, Skip if Clear " " " " e.g: BTFSC 1A,5
Bit Test, Skip if Set " " " " e.g: BTFSS 1B,6
Call Subroutine (range:00 to FF)  e.g: CALL Tone1
Clear f e.g: CLRF 1A
Clear W = CLRW clear the working register
Clear Watchdog Timer = CLRWDT
Complement f (result stored in W) e.g: COMF 0C,0
Complement f (result stored in f) e.g: COMF 0C,1
Decrement f (result stored in W) e.g: DECF 0D,0
Decrement f (result stored in f) e.g: DECF 0D,1
Decrement f, Skip if 0 (result in W) e.g: DECFSZ 1A,0
Decrement f, Skip if 0 (result in f) e.g: DECFSZ 1A,1 - use this instruction
Unconditional Branch (range: 000 to 1FF) e.g: GOTO Tone2
Read the input port: see BTFSS 06,0 etc for individual lines or MOVF 06,0
Increment f (result stored in W) e.g: INCF 1A,0
Increment f (result stored in f) e.g: INCF 1A,1
Increment f, Skip if 0 (result in W) e.g: INCFSZ 1A,0
Increment f, Skip if 0 (result in f) e.g: INCFSZ 1A,1
Inclusive OR Literal with W e.g: IORLW 20h
Inclusive OR W with f (result in W) e.g: IORWF 0D,0
Inclusive OR W with f (result stored in f) e.g: IORWF 0D,1
Load a file. Use: MOVLW XX then MOVWF 1C (or any other file)
Move Literal to W Load W with a number e.g: MOVLW 80h
Move f (result in W) Copy F into W e.g: MOVF 0E,0
Move f (result in f) Move F in and out of F - does not put F into W MOVF 0E,1
Move W to f Copy W to F e.g: MOVWF 0C
No Operation = NOP
Load OPTION Register = OPTION
see IORWF etc. above
turn on an output. Use: BSF 06,0 etc or MOVF 1C,0 then MOVWF 06
to Read an input line. Use: BTFSS 06,0 or BTFSS 06,1 or BTFSS 06,2 etc
Return from Interrupt
Return with Literal in W e.g: RETLW 80h   Returns with a value in W
Return from Subroutine use RETLW 00h
Rotate Left f through Carry (result in W) Doubles the value *e.g: RLF 1C,0
Rotate Left f through Carry (result in f) " " " * e.g: RLF 1C,1
Rotate Right f through Carry (result in W) Halves the value * e.g: RRF 1D,0
Rotate Right f through Carry (result in f) " " " * e.g: RRF 1D,1
Sleep - go into standby mode
Subtract W from Literal NOT subtract literal from W
Subtract W from f (result stored in W) e.g: SUBWF 0E,0
Subtract W from f (result stored in f) e.g: SUBWF 0E,1
Swap Nibbles in f (result stored in W) e.g: SWAPF 0C,0
Swap Nibbles in f (result stored in f) e.g: SWAPF 0C,1
Load TRIS file from W register. ** Alternative: MOVLW XX then MOVWF 06
Exclusive OR Literal with W e.g: XORLW 40h
Exclusive OR W with f (result in W) e.g: XORWF 0C,0
Exclusive OR W with f (result in f) e.g: XORWF 0C,1