PIC16C63A/65B/73B/74B
COMF
Syntax:
Operands:
Operation:
Status Affected:
Description:
Complement f
[
label
] COMF
0
≤
f
≤
127
d
∈
[0,1]
(f)
→
(destination)
Z
The contents of register ’f’ are comple-
mented. If ’d’ is 0, the result is stored
in W. If ’d’ is 1, the result is stored
back in register ’f’.
GOTO
f,d
Syntax:
Operands:
Operation:
Status Affected:
Description:
Unconditional Branch
[
label
]
GOTO k
0
≤
k
≤
2047
k
→
PC<10:0>
PCLATH<4:3>
→
PC<12:11>
None
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.
DECF
Syntax:
Operands:
Operation:
Status Affected:
Description:
Decrement f
[label] DECF f,d
0
≤
f
≤
127
d
∈
[0,1]
(f) - 1
→
(destination)
Z
Decrement register ’f’. If ’d’ is 0, the
result is stored in the W register. If ’d’
is 1, the result is stored back in
register ’f’.
INCF
Syntax:
Operands:
Operation:
Status Affected:
Description:
Increment f
[
label
]
INCF f,d
0
≤
f
≤
127
d
∈
[0,1]
(f) + 1
→
(destination)
Z
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’.
DECFSZ
Syntax:
Operands:
Operation:
Status Affected:
Description:
Decrement f, Skip if 0
[
label
] DECFSZ f,d
0
≤
f
≤
127
d
∈
[0,1]
(f) - 1
→
(destination);
skip if result = 0
None
The contents of register ’f’ are decre-
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, then a
NOP
is executed instead making it a 2 T
CY
instruction.
INCFSZ
Syntax:
Operands:
Operation:
Status Affected:
Description:
Increment f, Skip if 0
[
label
]
INCFSZ f,d
0
≤
f
≤
127
d
∈
[0,1]
(f) + 1
→
(destination),
skip if result = 0
None
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 2 T
CY
instruction
.
2000 Microchip Technology Inc.
DS30605C-page 103
MICROCHIP [ MICROCHIP TECHNOLOGY ]
