PIC16C5X
INCF
Increment f
IORLW
Inclusive OR literal with W
Syntax:
Operands:
[ label ] INCF f,d
Syntax:
[ label ] IORLW k
0 ≤ f ≤ 31
Operands:
Operation:
Status Affected:
Encoding:
Description:
0 ≤ k ≤ 255
d
[0,1]
(W) .OR. (k) → (W)
Operation:
(f) + 1 → (dest)
Z
Status Affected:
Encoding:
Z
1101
kkkk
kkkk
0010
10df
ffff
The contents of the W register are
OR’ed with the eight bit literal 'k'. The
result is placed in the W register.
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'.
Description:
Words:
1
Cycles:
Example:
1
Words:
1
1
IORLW 0x35
Cycles:
Example:
Before Instruction
0x9A
INCF
CNT,
1
W
=
Before Instruction
After Instruction
CNT
=
0xFF
0
W
=
0xBF
Z
=
Z
=
0
After Instruction
CNT
Z
=
=
0x00
1
IORWF
Inclusive OR W with f
[ label ] IORWF f,d
0 ≤ f ≤ 31
Syntax:
Operands:
INCFSZ
Increment f, Skip if 0
[ label ] INCFSZ f,d
0 ≤ f ≤ 31
d
[0,1]
Syntax:
Operation:
(W).OR. (f) → (dest)
Operands:
Status Affected:
Encoding:
Z
d
[0,1]
0001
00df
ffff
Operation:
(f) + 1 → (dest), skip if result = 0
Inclusive OR the W register with regis-
ter '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'.
Description:
Status Affected: None
0011
11df
ffff
Encoding:
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'.
Description:
Words:
1
1
Cycles:
Example:
If the result is 0, then the next instruc-
tion, which is already fetched, is dis-
carded and an NOP is executed
instead making it a two cycle instruc-
tion.
IORWF
RESULT, 0
Before Instruction
RESULT
W
=
0x13
=
0x91
After Instruction
Words:
1
RESULT
=
=
=
0x13
0x93
0
Cycles:
Example:
1(2)
W
Z
HERE
INCFSZ
GOTO
CNT,
LOOP
1
CONTINUE •
•
•
Before Instruction
PC
=
address (HERE)
After Instruction
CNT
if CNT
PC
if CNT
PC
=
=
=
≠
=
CNT + 1;
0,
address (CONTINUE);
0,
address (HERE +1)
1998 Microchip Technology Inc.
Preliminary
DS30453B-page 49
MICROCHIP [ MICROCHIP ]
