PIC16C925/926
XORLW
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Exclusive OR Literal with W
[ label ] XORLW k
0 ≤ k ≤ 255
(W) .XOR. k → (W)
Z
11 1010 kkkk kkkk
The contents of the W register are
XOR’ed with the eight-bit literal
'k'. The result is placed in the W
register.
1
1
Q1 Q2 Q3 Q4
Decode Read Process Write to
literal ’k’ data
W
Example:
XORLW
Before Instruction:
W = 0xB5
After Instruction:
W = 0x1A
0xAF
XORWF
Exclusive OR W with f
Syntax:
Operands:
Operation:
Status Affected:
[ label ] XORWF f [,d]
0 ≤ f ≤ 127
d ∈ [0,1]
(W) .XOR. (f) → (destination)
Z
Encoding:
00 0110 dfff ffff
Description:
Words:
Cycles:
Q Cycle Activity:
Exclusive OR the contents of the W
register with register 'f'. If 'd' is 0, the
result is stored in the W register. If
'd' is 1, the result is stored back in
register 'f'.
1
1
Q1
Q2 Q3
Q4
Decode
Read Process Write to
register ’f’ data destination
Example
XORWF REG 1
Before Instruction:
REG = 0xAF
W
= 0xB5
After Instruction:
REG = 0x1A
W
= 0xB5
2001 Microchip Technology Inc.
Preliminary
DS39544A-page 131