鈫?/div>
(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 2T
CY
instruc-
tion
.
IORLW
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Inclusive OR Literal with W
[
label
]
IORLW k
0
鈮?/div>
k
鈮?/div>
255
(W) .OR. k
鈫?/div>
(W)
Z
11
1000
kkkk
kkkk
The contents of the W register is
OR鈥檈d with the eight bit literal 'k'. The
result is placed in the W register
.
Words:
Cycles:
Q Cycle Activity:
1
1
Q1
Decode
Q2
Read
literal 'k'
Q3
Process
data
Q4
Write to
W
Words:
Cycles:
Q Cycle Activity:
1
1(2)
Q1
Decode
Q2
Read
register 'f'
Q3
Process
data
Q4
Write to
destination
Example
IORLW
W
W
Z
0x35
=
=
=
0x9A
0xBF
1
Before Instruction
After Instruction
If Skip:
(2nd Cycle)
Q1
Q2
No-Operat
ion
Q3
Q4
No-Opera No-Opera No-Operati
tion
tion
on
Example
INCFSZ
GOTO
CONTINUE
鈥?/div>
鈥?/div>
鈥?/div>
HERE
CNT, 1
LOOP
Before Instruction
PC
=
address
HERE
CNT + 1
0,
address
CONTINUE
0,
address
HERE +1
After Instruction
CNT =
if CNT=
PC
=
if CNT鈮?/div>
PC
=
漏
1998 Microchip Technology Inc.
DS30430C-page 61
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