PIC16C745SLASHP datasheet(113/158 Pages) MICROCHIP

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DS41124A-page 113

PIC16C745/765

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’ is 0, the

result is stored in W. If ’d’ is 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’ is 0,

the result is stored in the W regis-

ter. If ’d’ is 1, the result is 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’ is 0, the result

is placed in the W register. If ’d’ is

1, the result is placed back in reg-

ister ’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 2TCY 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’ is 0, the result

is placed in the W register. If ’d’ is

1, the result is placed back in reg-

ister ’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’ is 0, the result is

placed in the W register. If ’d’ is 1,

the result is placed back in regis-

ter ’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 2TCY instruction.

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