PIC16C71 datasheet(151/337 Pages) MICROCHIP

151 / 337 page

DS30234D-page 151

PIC16C6X

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

Encoding:

1111

dfff

ffff

Description:

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 1, the next instruction is

executed. If the result is 0, a NOP is

executed instead making it a 2TCY

instruction

Words:

Cycles:

1(2)

Q Cycle Activity:

Decode

Read

Process

data

Write to

destination

If Skip:

(2nd Cycle)

No-

Operation

No-

Operation

No-

Operation

No-

Operation

Example

HERE

INCFSZ

CNT, 1

GOTO

LOOP

CONTINUE

•

Before Instruction

address HERE

After Instruction

CNT

CNT + 1

if CNT=

address CONTINUE

if CNT

≠

address HERE +1

IORLW

Inclusive OR Literal with W

Syntax:

[

label ]

IORLW k

Operands:

≤ k ≤ 255

Operation:

(W) .OR. k

→ (W)

Status Affected:

Encoding:

1000

kkkk

Description:

The contents of the W register is

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

result is placed in the W register

Words:

Cycles:

Q Cycle Activity:

Decode

Read

literal 'k'

Process

data

Write to

Example

IORLW

0x35

Before Instruction

0x9A

After Instruction

0xBF

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