PIC18F258 Datasheet, PDF (286/384 Pages) Microchip Technology – High Performance, 28/40-Pin Enhanced FLASH Microcontrollers with CAN

PIC18FXX8
ADDWFC
ADD W and Carry bit to f
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
[ label ] ADDWFC f [,d [,a]]
0 ≤ f ≤ 255
d ∈ [0,1]
a ∈ [0,1]
(W) + (f) + (C) → dest
N, OV, C, DC, Z
0010 00da ffff ffff
Add W, the Carry Flag and data
memory location ’f’. If ’d’ is 0, the
result is placed in W. If ’d’ is 1, the
result is placed in data memory loca-
tion 'f'. If ‘a’ is 0, the Access Bank
will be selected. If ‘a’ is 1, the BSR
will not be overridden.
Words:
1
Cycles:
1
Q Cycle Activity:
Q1
Q2
Decode
Read
register ’f’
Q3
Process
Data
Q4
Write to
destination
Example:
ADDWFC
Before Instruction
Carry bit = 1
REG = 0x02
W
= 0x4D
After Instruction
Carry bit =
REG =
W
=
0
0x02
0x50
REG, W
ANDLW
AND literal with W
Syntax:
Operands:
Operation:
Status Affected:
[ label ] ANDLW k
0 ≤ k ≤ 255
(W) .AND. k → W
N, Z
Encoding:
Description:
Words:
Cycles:
0000 1011 kkkk kkkk
The contents of W are ANDed with
the 8-bit literal 'k'. The result is
placed in W.
1
1
Q Cycle Activity:
Q1
Q2
Decode
Read literal
’k’
Q3
Process
Data
Q4
Write to W
Example:
ANDLW
Before Instruction
W
= 0xA3
After Instruction
W
= 0x03
0x5F
DS41159B-page 284
 2002 Microchip Technology Inc.