PIC18F2331_10 Datasheet, PDF (306/392 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High-Performance PWM and A/D

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