Datasheet

Table Of Contents
PIC18F1220/1320
DS39605F-page 198 © 2007 Microchip Technology Inc.
ADDWFC ADD W and Carry bit to f
Syntax: [ label ] ADDWFC f [,d [,a]]
Operands: 0 f 255
d [0,1]
a [0,1]
Operation: (W) + (f) + (C) dest
Status Affected: N, OV, C, DC, Z
Encoding:
0010 00da ffff ffff
Description: 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 will be selected. If ‘a’ is ‘1’, the
BSR will not be overridden.
Words: 1
Cycles: 1
Q Cycle Activity:
Q1 Q2 Q3 Q4
Decode Read
register ‘f’
Process
Data
Write to
destination
Example:
ADDWFC REG, W
Before Instruction
Carry bit = 1
REG = 0x02
W = 0x4D
After Instruction
Carry bit = 0
REG = 0x02
W = 0x50
ANDLW AND literal with W
Syntax: [ label ] ANDLW k
Operands: 0 k 255
Operation: (W) .AND. k W
Status Affected: N, Z
Encoding:
0000 1011 kkkk kkkk
Description: The contents of W are AND’ed 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:
ANDLW 0x5F
Before Instruction
W=0xA3
After Instruction
W = 0x03