
PIC18FXX39
DS30485A-page 252
Preliminary
2002 Microchip Technology Inc.
XORWF
Exclusive OR W with f
Syntax:
[ label ] XORWF
f [,d [,a]
Operands:
0
≤ f ≤ 255
d
∈ [0,1]
a
∈ [0,1]
Operation:
(W) .XOR. (f)
→ dest
Status Affected:
N, Z
Encoding:
0001
10da
ffff
Description:
Exclusive OR the contents of W
with register 'f'. If 'd' is 0, the result
is stored in W. If 'd' is 1, the result is
stored back in the register 'f'
(default). If ‘a’ is 0, the Access
Bank will be selected, overriding
the BSR value. If ‘a’ is 1, then the
bank will be selected as per the
BSR value (default).
Words:
1
Cycles:
1
Q Cycle Activity:
Q1
Q2
Q3
Q4
Decode
Read
register 'f'
Process
Data
Write to
destination
Example:
XORWF
REG, 1, 0
Before Instruction
REG
=
0xAF
W=
0xB5
After Instruction
REG
=
0x1A
W=
0xB5