PIC17LCR42-33I/L View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC17LCR42-33I/L

High-Performance 8-Bit CMOS EPROM/ROM Microcontroller

Microchip Technology 

PIC17C4X

ADDWFC

Syntax:

Operands:

Operation:

Status Affected:

Encoding:

Description:

Words:

Cycles:

Q Cycle Activity:

Q1

Decode

ADD WREG and Carry bit to f

[ label ] ADDWFC f,d

0 ≤ f ≤ 255

d ∈ [0,1]

(WREG) + (f) + C → (dest)

OV, C, DC, Z

0001 000d ffff ffff

Add WREG, the Carry Flag and data

memory location 'f'. If 'd' is 0, the result is

placed in WREG. If 'd' is 1, the result is

placed in data memory location 'f'.

1

1

Q2

Read

register 'f'

Q3

Execute

Q4

Write to

destination

Example:

ADDWFC

Before Instruction

Carry bit = 1

REG = 0x02

WREG = 0x4D

After Instruction

Carry bit =

REG =

WREG =

0

0x02

0x50

REG 0

ANDLW

And Literal with WREG

Syntax:

[ label ] ANDLW k

Operands:

0 ≤ k ≤ 255

Operation:

(WREG) .AND. (k) → (WREG)

Status Affected: Z

Encoding:

1011 0101 kkkk kkkk

Description:

The contents of WREG are AND’ed with

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

WREG.

Words:

1

Cycles:

1

Q Cycle Activity:

Q1

Q2

Decode

Read literal

'k'

Q3

Execute

Q4

Write to

WREG

Example:

ANDLW

Before Instruction

WREG = 0xA3

After Instruction

WREG = 0x03

0x5F

© 1996 Microchip Technology Inc.

DS30412C-page 113

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