PIC16F648AESS View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F648AESS

Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

Microchip Technology 

PIC16F627A/628A/648A

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

incremented. 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 REG1, 1

Before Instruction

REG1 = 0xFF

Z =0

After Instruction

REG1 = 0x00

Z =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

incremented. 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

GOTO

CONTINUE •

•

•

REG1, 1

LOOP

Before Instruction

PC = address HERE

After Instruction

REG1 = REG1 + 1

if CNT = 0,

PC = address CONTINUE

if REG1≠ 0,

PC = address HERE +1

DS40044F-page 122

© 2007 Microchip Technology Inc.

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