Standard Instruction Set

Table 1. Instruction Set
Mnemonic,

Operands

Description Cycles 14-Bit Opcode Status

Affected

Notes
MSb     LSb
BYTE-ORIENTED OPERATIONS
ADDWF f, d Add WREG and f 1
00
0111
dfff
ffff
C, DC, Z 2
ADDWFC f, d Add WREG and Carry bit to f 1
11
1101
dfff
ffff
C, DC, Z 2
ANDWF f, d AND WREG with f 1
00
0101
dfff
ffff
Z 2
ASRF f, d Arithmetic Right Shift 1
11
0111
dfff
ffff
C, Z 2
LSLF f, d Logical Left Shift 1
11
0101
dfff
ffff
C, Z 2
LSRF f, d Logical Right Shift 1
11
0110
dfff
ffff
C, Z 2
CLRF f Clear f 1
00
0001
lfff
ffff
Z 2
CLRW Clear WREG 1
00
0001
0000
00xx
Z  
COMF f, d Complement f 1
00
1001
dfff
ffff
Z 2
DECF f, d Decrement f 1
00
0011
dfff
ffff
Z 2
INCF f, d Increment f 1
00
1010
dfff
ffff
Z 2
IORWF f, d Inclusive OR WREG with f 1
00
0100
dfff
ffff
Z 2
MOVF f, d Move f 1
00
1000
dfff
ffff
Z 2
MOVWF f Move WREG to f 1
00
0000
1fff
ffff
None 2
RLF f, d Rotate Left f through Carry 1
00
1101
dfff
ffff
C 2
RRF f, d Rotate Right f through Carry 1
00
1100
dfff
ffff
C 2
SUBWF f, d Subtract WREG from f 1
00
0010
dfff
ffff
C, DC, Z 2
SUBWFB f, d Subtract WREG from f with 
 Borrow 1
11
1011
dfff
ffff
C, DC, Z 2
SWAPF f, d Swap nibbles in f 1
00
1110
dfff
ffff
None 2
XORWF f, d Exclusive OR WREG with f 1
00
0110
dfff
ffff
Z 2
BYTE-ORIENTED SKIP OPERATIONS
DECFSZ f, d Decrement f, Skip if 0 1(2)
00
1011
dfff
ffff
None 1, 2
INCFSZ f, d Increment f, Skip if 0 1(2)
00
1111
dfff
ffff
None 1, 2
BIT-ORIENTED FILE REGISTER OPERATIONS
BCF f, b Bit Clear f 1
01
00bb
bfff
ffff
None 2
BSF f, b Bit Set f 1
01
01bb
bfff
ffff
None 2
BIT-ORIENTED SKIP OPERATIONS
BTFSC f, b Bit Test f, Skip if Clear 1(2)
01
10bb
bfff
ffff
None 1, 2
BTFSS f, b Bit Test f, Skip if Set 1(2)
1010
11bb
bfff
ffff
None 1, 2
LITERAL OPERATIONS
ADDLW k Add literal and WREG 1
11
1110
kkkk
kkkk
C, DC, Z  
ANDLW k AND literal with WREG 1
11
1001
kkkk
kkkk
Z
IORLW k Inclusive OR literal with WREG 1
11
1000
kkkk
kkkk
Z
MOVLB k Move literal to BSR 1
00
000
0k
kkkk
None
MOVLP k Move literal to PCLATH 1
11
0001
1kkk
kkkk
None
MOVLW k Move literal to W 1
11
0000
kkkk
kkkk
None
SUBLW k Subtract W from literal 1
11
1100
kkkk
kkkk
C, DC, Z
XORLW k Exclusive OR literal with W 1
11
1010
kkkk
kkkk
Z
CONTROL OPERATIONS
BRA k Relative Branch 2
11
001k
kkkk
kkkk
None  
BRW Relative Branch with WREG 2
00
0000
0000
1011
None
CALL k Call Subroutine 2
10
0kkk
kkkk
kkkk
None
CALLW Call Subroutine with WREG 2
00
0000
0000
1010
None
GOTO k Go to address 2
10
1kkk
kkkk
kkkk
None
RETFIE k Return from interrupt 2
00
0000
0000
1001
None
RETLW k Return with literal in WREG 2
11
0100
kkkk
kkkk
None
RETURN Return from Subroutine 2
00
0000
0000
1000
None
INHERENT OPERATIONS
CLRWDT Clear Watchdog Timer 1
00
0000
0110
0100
TO, PD
NOP No Operation 1
00
0000
0000
0000
None
RESET Software device Reset 1
00
0000
0000
0001
None
SLEEP Go into Standby mode 1
00
0000
0110
0011

TO, PD

 
TRIS f Load TRIS register with WREG 1
00
0000
0110
0fff
None  
C-COMPILER OPTIMIZED
ADDFSR n, k Add Literal k to FSRn 1
11
0001
0nkk
kkkk
None  
MOVIW n, mm Move Indirect FSRn to WREG with pre/post inc/dec modifier, mm 1
00
0000
0001
0nmm
Z 2, 3
k[n] Move INDFn to WREG, Indexed Indirect. 1
11
1111
0nkk
kkkk
Z 2
MOVWI n, mm Move WREG to Indirect FSRn with pre/post inc/dec modifier, mm 1
00
0000
0001
1nmm
None 2, 3
k[n] Move WREG to INDFn, Indexed Indirect. 1
11
1111
1nkk
kkkk
None 2
Notes:
  1. 1.If the Program Counter (PC) is modified, or a conditional test is true, the instruction requires two cycles. The second cycle is executed as a NOP.
  2. 2.If this instruction addresses an INDF register and the MSb of the corresponding FSR is set, this instruction will require one additional instruction cycle.
  3. 3.Details on MOVIW and MOVWI instruction descriptions are available in the next section.