PIC18F242 MICROCHIP [Microchip Technology], PIC18F242 Datasheet - Page 219

• Manufacturer Part Number: PIC18F242
• Description: 28/40-pin High Performance, Enhanced FLASH Microcontrollers with 10-Bit A/D
• Manufacturer: MICROCHIP [Microchip Technology]

20.1
ADDLW
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
© 2006 Microchip Technology Inc.
Q Cycle Activity:
Before Instruction
After Instruction
Decode
Instruction Set
W
W
Q1
=
=
0x10
0x25
ADD literal to W
[ label ] ADDLW
0
(W) + k
N, OV, C, DC, Z
The contents of W are added to the
8-bit literal 'k' and the result is
placed in W.
1
1
literal 'k'
ADDLW
Read
0000
Q2
k
255
0x15
W
1111
Process
Data
Q3
k
kkkk
Write to W
Q4
kkkk
ADDWF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
Q Cycle Activity:
Before Instruction
After Instruction
Decode
W
REG
W
REG
Q1
=
=
=
=
register 'f'
ADD W to f
[ label ] ADDWF
0
d
a
(W) + (f)
N, OV, C, DC, Z
Add W to register 'f'. If 'd' is 0, the
result is stored in W. If 'd' is 1, the
result is stored back in register 'f'
(default). If ‘a’ is 0, the Access
Bank will be selected. If ‘a’ is 1, the
BSR is used.
1
1
ADDWF
Read
0010
Q2
0x17
0xC2
0xD9
0xC2
f
[0,1]
[0,1]
PIC18FXX2
255
01da
REG, 0, 0
dest
Process
Data
Q3
DS39564C-page 217
ffff
f [,d [,a]
destination
Write to
Q4
ffff