PIC18F242 datasheet(220/332 Pages) MICROCHIP

220 / 332 page

PIC18FXX2

DS39564C-page 218

ADDWFC

ADD W and Carry bit to f

Syntax:

[

label ] ADDWFC

f [,d [,a]

Operands:

≤ f ≤ 255

∈ [0,1]

Operation:

(W) + (f) + (C)

→ dest

Status Affected:

N,OV, C, DC, Z

Encoding:

0010

00da

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 loca-

tion 'f'. If ‘a’ is 0, the Access Bank

will be selected. If ‘a’ is 1, the BSR

will not be overridden.

Words:

Cycles:

Q Cycle Activity:

Decode

Read

Process

Data

Write to

destination

Example:

ADDWFC

REG,

0, 1

Before Instruction

Carry bit =

REG

0x02

0x4D

After Instruction

Carry bit =

REG

0x02

0x50

ANDLW

AND literal with W

Syntax:

[

label ] ANDLW

Operands:

≤ k ≤ 255

Operation:

(W) .AND. k

→ W

Status Affected:

N,Z

Encoding:

0000

1011

kkkk

Description:

The contents of W are ANDed with

the 8-bit literal 'k'. The result is

placed in W.

Words:

Cycles:

Q Cycle Activity:

Decode

Read literal

'k'

Process

Data

Write to W

Example:

ANDLW

0x5F

Before Instruction

0xA3

After Instruction

0x03

PIC18F242 Fiches technique(PDF) 220 Page - Microchip Technology

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