PIC18F2525 Datasheet, PDF (276/390 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

PIC18F2525/2620/4525/4620
ADDWFC
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Q1
Decode
ADD W and CARRY bit to f
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
location ‘f’.
If ‘a’ is ‘0’, the Access Bank is selected.
If ‘a’ is ‘1’, the BSR is used to select the
GPR bank (default).
If ‘a’ is ‘0’ and the extended instruction
set is enabled, this instruction operates
in Indexed Literal Offset Addressing
mode whenever f ≤ 95 (5Fh). See
Section 24.2.3 “Byte-Oriented and
Bit-Oriented Instructions in Indexed
Literal Offset Mode” for details.
1
1
Q2
Read
register ‘f’
Q3
Process
Data
Q4
Write to
destination
Example:
ADDWFC
Before Instruction
CARRY bit = 1
REG
= 02h
W
= 4Dh
After Instruction
CARRY bit = 0
REG
= 02h
W
= 50h
REG, 0, 1
ANDLW
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Q1
Decode
AND Literal with W
ANDLW k
0 ≤ k ≤ 255
(W) .AND. k → W
N, Z
0000 1011 kkkk kkkk
The contents of W are AND’ed 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:
ANDLW
Before Instruction
W
= A3h
After Instruction
W
= 03h
05Fh
DS39626B-page 274
Preliminary
 2004 Microchip Technology Inc.