PIC16F8X_13 Datasheet, PDF (63/128 Pages) Microchip Technology – 18-pin Flash/EEPROM 8-Bit Microcontrollers

PIC16F8X
INCFSZ
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Increment f, Skip if 0
[ label ] INCFSZ f,d
0  f  127
d  [0,1]
(f) + 1  (destination),
skip if result = 0
None
00 1111 dfff ffff
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 exe-
cuted instead making it a 2TCY instruc-
tion.
1
1(2)
Q1
Q2
Q3
Q4
Decode Read Process Write to
register 'f' data destination
If Skip:
(2nd Cycle)
Q1
Q2
Q3
Q4
No-Opera No-Opera No-Operati
No-Operat tion
tion
on
ion
Example
HERE
INCFSZ
GOTO
CONTINUE •
•
•
CNT, 1
LOOP
Before Instruction
PC = address HERE
After Instruction
CNT = CNT + 1
if CNT= 0,
PC = address CONTINUE
if CNT 0,
PC = address HERE +1
IORLW
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Inclusive OR Literal with W
[ label ] IORLW k
0  k  255
(W) .OR. k  (W)
Z
11 1000 kkkk kkkk
The contents of the W register is
OR’ed with the eight bit literal 'k'. The
result is placed in the W register.
1
1
Q1
Q2
Q3
Q4
Decode Read Process Write to
literal 'k' data
W
Example
IORLW 0x35
Before Instruction
W = 0x9A
After Instruction
W = 0xBF
Z=1
 1996-2013 Microchip Technology Inc.
DS30430D-page 63