PIC16LC8X View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16LC8X

8-Bit CMOS EEPROM Microcontrollers

Microchip Technology 

PIC16C8X

GOTO

Syntax:

Operands:

Operation:

Status Affected:

Encoding:

Description:

Words:

Cycles:

Example

Go to address

[ label ] GOTO k

0 ≤ k ≤ 2047

k → (PC<10:0>)

(PCLATH<4:3>) → (PC<12:11>)

None

10 1kkk kkkk kkkk

GOTO is an unconditional branch. The

eleven bit immediate value is loaded

into PC bits <10:0>. The upper bits of

PC are loaded from PCLATH<4:3>.

GOTO is a two cycle instruction.

1

2

GOTO THERE

After Instruction

PC = Address THERE

INCF

Syntax:

Operands:

Operation:

Status Affected:

Encoding:

Description:

Words:

Cycles:

Example

Increment f

[ label ] INCF f,d

0 ≤ f ≤ 127

d ∈ [0,1]

(f) + 1 → (dest)

Z

00 1010 dfff ffff

The contents of register 'f' are incre-

mented. If 'd' is 0 the result is placed

in the W register. If 'd' is 1 the result is

placed back in register 'f'.

1

1

INCF CNT, 1

Before Instruction

CNT =

Z

=

After Instruction

CNT =

Z

=

0xFF

0

0x00

1

INCFSZ

Syntax:

Operands:

Operation:

Status Affected:

Encoding:

Description:

Words:

Cycles:

Example

Increment f, Skip if 0

[ label ] INCFSZ f,d

0 ≤ f ≤ 127

d ∈ [0,1]

(f) + 1 → (dest), skip if result = 0

None

00 1111 dfff ffff

The contents of register 'f' are incre-

mented. If 'd' is 0 the result is placed

in the W register. If 'd' is 1 the result is

placed back in register 'f'.

If the result is 0, the next instruction,

which is already fetched, is discarded.

A NOP is executed instead making it

a two cycle instruction.

1

1(2)

HERE

INCFSZ

1

GOTO

CONTINUE •

•

•

CNT,

LOOP

Before Instruction

PC = addressHERE

After Instruction

CNT = CNT + 1

if CNT = 0,

PC = addressCONTINUE

if CNT≠ 0,

PC = addressHERE +1

IORLW

Syntax:

Operands:

Operation:

Status Affected:

Encoding:

Description:

Words:

Cycles:

Example

Inclusive OR Literal with W

[ label ] IORLW k

0 ≤ k ≤ 255

(W) .OR. (k) → (W)

Z

11 1000 kkkk kkkk

The contents of the W register are

OR’ed to the eight bit literal 'k'. The

result is placed in the W register.

1

1

IORLW 0x35

Before Instruction

W = 0x9A

After Instruction

W = 0xBF

© 1995 Microchip Technology Inc.

DS30081F-page 59

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