Posts Tagged ‘asm’
Here’s the instruction set for Microchip’s Baseline devices. These include the PIC10 series as well as some of the PIC12 and PIC16.
| Opcode (binary) | Mnemonic | Description |
|---|---|---|
0000 0000 0000 |
NOP | No operation |
0000 0000 0010 |
OPTION | Load OPTION register with contents of W |
0000 0000 0011 |
SLEEP | Go into standby mode |
0000 0000 0100 |
CLRWDT | Reset watchdog timer |
0000 0000 01ff |
TRIS f | Move W to port control register (f=1..3) |
0000 001 fffff |
MOVWF f | Move W to f |
0000 010 xxxxx |
CLRW | Clear W to 0 (a.k.a CLR x,W) |
0000 011 fffff |
CLRF f | Clear f to 0 (a.k.a. CLR f,F) |
0000 10d fffff |
SUBWF f,d | Subtract W from f (d = f − W) |
0000 11d fffff |
DECF f,d | Decrement f (d = f − 1) |
0001 00d fffff |
IORWF f,d | Inclusive OR W with F (d = f OR W) |
0001 01d fffff |
ANDWF f,d | AND W with F (d = f AND W) |
0001 10d fffff |
XORWF f,d | Exclusive OR W with F (d = f XOR W) |
0001 11d fffff |
ADDWF f,d | Add W with F (d = f + W) |
0010 00d fffff |
MOVF f,d | Move F (d = f) |
0010 01d fffff |
COMF f,d | Complement f (d = NOT f) |
0010 10d fffff |
INCF f,d | Increment f (d = f + 1) |
0010 11d fffff |
DECFSZ f,d | Decrement f (d = f − 1) and skip if zero |
0011 00d fffff |
RRF f,d | Rotate right F (rotate right through carry) |
0011 01d fffff |
RLF f,d | Rotate left F (rotate left through carry) |
0011 10d fffff |
SWAPF f,d | Swap 4-bit halves of f (d = f<<4 | f>>4) |
0011 11d fffff |
INCFSZ f,d | Increment f (d = f + 1) and skip if zero |
0100 bbb fffff |
BCF f,b | Bit clear f (Clear bit b of f) |
0101 bbb fffff |
BSF f,b | Bit set f (Set bit b of f) |
0110 bbb fffff |
BTFSC f,b | Bit test f, skip if clear (Test bit b of f) |
0111 bbb fffff |
BTFSS f,b | Bit test f, skip if set (Test bit b of f) |
1000 kkkkkkkk |
RETLW k | Set W to k and return |
1001 kkkkkkkk |
CALL k | Save return address, load PC with k |
101 kkkkkkkkk |
GOTO k | Jump to address k (9 bits!) |
1100 kkkkkkkk |
MOVLW k | Move literal to W (W = k) |
1101 kkkkkkkk |
IORLW k | Inclusive or literal with W (W = k OR W) |
1110 kkkkkkkk |
ANDLW k | AND literal with W (W = k AND W) |
1111 kkkkkkkk |
XORLW k | Exclusive or literal with W (W = k XOR W) |