Serge.V Lumber Barn

This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong.
====== PIC16 assembler mnemonics ======

===== Transfers =====
^ Traditional  ^ Op code         ^  as     ^ Operation  ^
| movf w       | 0010 0000       | xta     | w = f  |
| tst f        | 0010 0010       | tst     | f = f, set Z  |
| movwf f      | 0000 0010       | atx     | f = w  |
| movlw k      | 1100            | cta     | w = c  |
| clrw         | 0000 0100       | az      | w = 0  |
| clrf f       | 0000 0110       | xz      | f = 0  |

===== Conditional ops =====
^ Traditional  ^ Op code         ^  as     ^ Operation  ^
| btfsc f,b    | 0110            | bs?     | if (f.b != 0)  |
| btfss f,b    | 0111            | bz?     | if (f.b == 0)  |
| decfsz f,w   | 0010 1100       | x--a?   | w = f-1; if (w != 0)  |
| decfsz f     | 0010 1110       | x--?    | f = f-1; if (f != 0)  |
| incfsz f,w   | 0011 1100       | x++a?   | w = f+1; if (w != 0)  |
| incfsz f     | 0011 1110       | x++?    | f = f+1; if (f != 0)  |

===== Arithmetic ops =====
^ Traditional  ^ Op code         ^  as     ^ Operation  ^
| addwf f,w    | 0001 1110       | a+x     | w += f  |
| addwf f      | 0001 1111       | x+a     | f += w  |
| subwf f,w    | 0000 1000       | a-x     | w = f - w  |
| subwf f      | 0000 1010       | x-a     | f -= w  |
| decf f,w     | 0000 1100       | x--a    | w = f-1  |
| decf f       | 0000 1110       | x--     | f = f-1  |
| incf f,w     | 0010 1000       | x++a    | w = f+1  |
| incf f       | 0010 1010       | x++     | f = f+1  |

===== Logical ops =====
^ Traditional  ^ Op code         ^  as     ^ Operation  ^
| andwf f,w    | 0001 0100       | a&x     | w &= f  |
| andwf f      | 0001 0110       | x&a     | f &= w  |
| andlw k      | 1110            | a&c     | w &= c  |
| iorwf f,w    | 0001 0000       | a<html>|</html>x     | w <html>|</html>= f  |
| iorwf f      | 0001 0010       | x<html>|</html>a     | f <html>|</html>= w  |
| iorlw k      | 1101            | a<html>|</html>c     | w <html>|</html>= c  |
| xorwf f,w    | 0001 1000       | a<html>^</html>x     | w <html>^</html>= f  |
| xorwf f      | 0001 1010       | x<html>^</html>a     | f <html>^</html>= w  |
| xorlw k      | 1111            | a<html>^</html>c     | w <html>^</html>= c  |
| comf f,w     | 0010 0100       | xca     | w = ~f  |
| comf f       | 0010 0110       | xc      | f = ~f  |
| rlf f,w      | 0011 0100       | xc<<a   | w = carry:f << 1  |
| rlf f        | 0011 0110       | xc<<x   | f = carry:f << 1  |
| rrcf f,w     | 0011 0000       | xc>>a   | w = carry:f >> 1  |
| rrcf f       | 0011 0010       | xc>>x   | f = carry:f >> 1  |
| swapf f      | 0011 1010       | xw      | f = swap(f)  |
| swapf f,w    | 0011 1000       | xwa     | w = swap(f)  |

===== Bit ops =====
^ Traditional  ^ Op code         ^  as     ^ Operation  ^
| bcf f,b      | 0100            | bz      | f.b = 0  |
| bsf f,b      | 0101            | bs      | f.b = 1  |

===== Control flow =====
^ Traditional  ^ Op code         ^  as     ^ Operation  ^
| goto k       | 101             | goto    | goto c()  |
| call k       | 1001            | call    | call c()  |
| retlw k      | 1000            | ret     | w = c; return  |
| nop          | 0000 0000 0000  | nop     | --  |

===== Special ops =====
^ Traditional  ^ Op code         ^  as     ^ Operation  ^
| clrwdt       | 0000 0000 0100  | awake   | clear watchdog timer  |
| sleep        | 0000 0000 0011  | sleep   | enter sleep mode  |
| option       | 0000 0000 0010  | option  | option := w  |
| tris         | 0000 0000 0110  | tris    | tris := w  |