PIC18F258-I/SP View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18F258-I/SP

28/40-Pin High-Performance, Enhanced Flash Microcontrollers with CAN Module

Microchip Technology 

PIC18FXX8

ADDWFC

ADD W and Carry bit to f

Syntax:

Operands:

Operation:

Status Affected:

Encoding:

Description:

Words:

[ 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 location ‘f’. If ‘a’ is ‘0’, the

Access Bank will be selected. If ‘a’ is ‘1’,

the BSR will not be overridden.

1

Cycles:

Q Cycle Activity:

Q1

Decode

1

Q2

Read

register ‘f’

Q3

Process

Data

Q4

Write to

destination

Example:

ADDWFC

Before Instruction

Carry bit =

REG =

W

=

After Instruction

Carry bit =

REG =

W

=

1

0x02

0x4D

0

0x02

0x50

REG, W

ANDLW

AND Literal with W

Syntax:

Operands:

Operation:

Status Affected:

Encoding:

Description:

Words:

Cycles:

[ label ] ANDLW k

0 ≤ k ≤ 255

(W) .AND. k → W

N, Z

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

Decode

Q2

Read literal

‘k’

Q3

Process

Data

Q4

Write to W

Example:

ANDLW

Before Instruction

W

=

After Instruction

W

=

0xA3

0x03

0x5F

DS41159E-page 288

© 2006 Microchip Technology Inc.

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