PIC16F7X
DECFSZ
Decrement f, Skip if 0
INCFSZ
Increment f, Skip if 0
Syntax:
[ label ] DECFSZ f,d
Syntax:
[ label ] INCFSZ f,d
Operands:
0 ≤ f ≤ 127
d ∈ [0,1]
Operands:
0 ≤ f ≤ 127
d ∈ [0,1]
Operation:
(f) - 1 → (destination);
skip if result = 0
Operation:
(f) + 1 → (destination),
skip if result = 0
Status Affected: None
Status Affected: None
Description:
The contents of register ’f’ are
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
register ’f’.
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 1, the next instruc-
tion is executed. If the result is 0,
then a NOPis executed instead,
making it a 2TCY instruction.
If the result is 1, the next instruc-
tion is executed. If the result is 0,
a NOPis executed instead, making
it a 2TCY instruction.
GOTO
Unconditional Branch
IORLW
Inclusive OR Literal with W
Syntax:
[ label ] GOTO k
0 ≤ k ≤ 2047
Syntax:
[ label ] IORLW k
0 ≤ k ≤ 255
Operands:
Operation:
Operands:
Operation:
Status Affected:
Description:
k → PC<10:0>
PCLATH<4:3> → PC<12:11>
(W) .OR. k → (W)
Z
Status Affected: None
The contents of the W register are
OR’ed with the eight-bit literal 'k'.
The result is placed in the W
register.
Description:
GOTOis 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>. GOTOis a two-
cycle instruction.
IORWF
Inclusive OR W with f
INCF
Increment f
Syntax:
[ label ] IORWF f,d
Syntax:
[ label ] INCF f,d
Operands:
0 ≤ f ≤ 127
d ∈ [0,1]
Operands:
0 ≤ f ≤ 127
d ∈ [0,1]
Operation:
(W) .OR. (f) → (destination)
Operation:
(f) + 1 → (destination)
Status Affected:
Description:
Z
Status Affected:
Description:
Z
Inclusive OR the W register with
register 'f'. If 'd' is 0, the result is
placed in the W register. If 'd' is 1,
the result is placed back in
register 'f'.
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’.
2002 Microchip Technology Inc.
DS30325B-page 109
MICROCHIP [ MICROCHIP ]
