Datasheet

PIC16F627A/628A/648A
DS40044G-page 130 © 2009 Microchip Technology Inc.
XORLW Exclusive OR Literal with W
Syntax: [ label ]XORLW k
Operands: 0 ≤ k ≤ 255
Operation: (W) .XOR. k → (W)
Status Affected: Z
Encoding:
11 1010 kkkk kkkk
Description: The contents of the W register
are XOR’ed with the eight-bit
literal ‘k’. The result is placed in
the W register.
Words: 1
Cycles: 1
Example
:
XORLW 0xAF
Before Instruction
W=0xB5
After Instruction
W = 0x1A
XORWF Exclusive OR W with f
Syntax: [ label ] XORWF f,d
Operands: 0 ≤ f ≤ 127
d ∈ [0,1]
Operation: (W) .XOR. (f) → (dest)
Status Affected: Z
Encoding:
00 0110 dfff ffff
Description: 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’.
Words: 1
Cycles: 1
Example
XORWF REG1, 1
Before Instruction
REG1 = 0xAF
W=0xB5
After Instruction
REG1 = 0x1A
W=0xB5