Datasheet

PIC18F2331/2431/4331/4431
DS39616D-page 306  2010 Microchip Technology Inc.
IORLW Inclusive OR Literal with W
Syntax: [ label ] IORLW k
Operands: 0  k  255
Operation: (W) .OR. k  W
Status Affected: N, Z
Encoding: 0000 1001 kkkk kkkk
Description: The contents of W are ORed with the
8-bit literal, ‘k’. The result is placed in
W.
Words: 1
Cycles: 1
Q Cycle Activity:
Q1 Q2 Q3 Q4
Decode Read
literal ‘k’
Process
Data
Write to
W
Example:
IORLW 0x35
Before Instruction
W = 0x9A
After Instruction
W=0xBF
IORWF Inclusive OR W with f
Syntax: [ label ] IORWF f [,d [,a]]
Operands: 0  f  255
d  [0,1]
a  [0,1]
Operation: (W) .OR. (f)  dest
Status Affected: N, Z
Encoding: 0001 00da ffff ffff
Description: Inclusive OR W with register, ‘f’. If ‘d’ is
‘0’, the result is placed in W. If ‘d’ is ‘1’,
the result is placed back in register, ‘f’. If
‘a’ is ‘0’, the Access Bank will be
selected, overriding the BSR value. If
‘a’ = 1, then the bank will be selected as
per the BSR value.
Words: 1
Cycles: 1
Q Cycle Activity:
Q1 Q2 Q3 Q4
Decode Read
register ‘f’
Process
Data
Write to
destination
Example:
IORWF RESULT, W
Before Instruction
RESULT = 0x13
W = 0x91
After Instruction
RESULT = 0x13
W = 0x93