PIC16F72SLASHML datasheet(79/136 Pages) MICROCHIP

79 / 136 page

 2002 Microchip Technology Inc.

DS39597B-page 77

PIC16F72

COMF

Complement f

Syntax:

[ label ] COMF

f,d

Operands:

≤ f ≤ 127

∈ [0,1]

Operation:

(f)

→ (destination)

Status Affected:

Description:

The contents of register ‘f’ are

complemented. If ‘d’ = ‘0’, the

result is stored in W. If ‘d’ = ‘1’, the

result is stored back in register ‘f’.

DECF

Decrement f

Syntax:

[ label ] DECF f,d

Operands:

≤ f ≤ 127

∈ [0,1]

Operation:

(f) - 1

→ (destination)

Status Affected:

Description:

Decrement register ‘f’. If ‘d’ = ‘0’,

the result is stored in the W

stored back in register ‘f’.

DECFSZ

Decrement f, Skip if 0

Syntax:

[ label ] DECFSZ f,d

Operands:

≤ f ≤ 127

∈ [0,1]

Operation:

(f) - 1

→ (destination);

skip if result = 0

Status Affected:

None

Description:

The contents of register ‘f’ are

decremented. If ‘d’ = ‘0’, the result

is placed in the W register. If

‘d’ = ‘1’, the result is placed back

in register ‘f’.

If the result is ‘1’, the next instruc-

tion is executed. If the result is ‘0’,

then a NOP is executed instead,

making it a 2 TCY instruction.

GOTO

Unconditional Branch

Syntax:

[ label ]

GOTO k

Operands:

≤ k ≤ 2047

Operation:

→ PC<10:0>

PCLATH<4:3>

→ PC<12:11>

Status Affected:

None

Description:

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.

INCF

Increment f

Syntax:

[ label ]

INCF f,d

Operands:

≤ f ≤ 127

∈ [0,1]

Operation:

(f) + 1

→ (destination)

Status Affected:

Description:

The contents of register ‘f’ are

incremented. If ‘d’ = ‘0’, the result

is placed in the W register. If

‘d’ = ‘1’, the result is placed back

in register ‘f’.

INCFSZ

Increment f, Skip if 0

Syntax:

[ label ]

INCFSZ f,d

Operands:

≤ f ≤ 127

∈ [0,1]

Operation:

(f) + 1

→ (destination),

skip if result = 0

Status Affected:

None

Description:

The contents of register ‘f’ are

incremented. If ‘d’ = ‘0’, the result

is placed in the W register. If

‘d’ = ‘1’, the result is placed back

in register ‘f’.

If the result is ‘1’, the next instruc-

tion is executed. If the result is ‘0’,

a NOP is executed instead, making

it a 2 TCY instruction.

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