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PIC16LC554 数据表(PDF) 58 Page - Microchip Technology

部件名 PIC16LC554
功能描述  EPROM-Based 8-Bit CMOS Microcontroller
PDF  96 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

PIC16LC554 数据表(HTML) 58 Page - Microchip Technology

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PIC16C55X(A)
DS40143B-page 58
Preliminary
© 1997 Microchip Technology Inc.
IORWF
Inclusive OR W with f
Syntax:
[
label ]
IORWF
f,d
Operands:
0
≤ f ≤ 127
d
∈ [0,1]
Operation:
(W) .OR. (f)
→ (dest)
Status Affected:
Z
Encoding:
00
0100
dfff
ffff
Description:
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'.
Words:
1
Cycles:
1
Example
IORWF
RESULT, 0
Before Instruction
RESULT =
0x13
W
=
0x91
After Instruction
RESULT =
0x13
W
=
0x93
Z
=
1
MOVLW
Move Literal to W
Syntax:
[
label ]
MOVLW k
Operands:
0
≤ k ≤ 255
Operation:
k
→ (W)
Status Affected:
None
Encoding:
11
00xx
kkkk
kkkk
Description:
The eight bit literal 'k' is loaded into W
register
. The don’t cares will assemble
as 0’s.
Words:
1
Cycles:
1
Example
MOVLW
0x5A
After Instruction
W
=
0x5A
MOVF
Move f
Syntax:
[
label ]
MOVF f,d
Operands:
0
≤ f ≤ 127
d
∈ [0,1]
Operation:
(f)
→ (dest)
Status Affected:
Z
Encoding:
00
1000
dfff
ffff
Description:
The contents of register f is moved to
a destination dependant upon the
status of d. If d = 0, destination is W
register. If d = 1, the destination is file
register f itself. d = 1 is useful to test a
file register since status flag Z is
affected.
Words:
1
Cycles:
1
Example
MOVF
FSR,
0
After Instruction
W = value in FSR register
Z
= 1
MOVWF
Move W to f
Syntax:
[
label ]
MOVWF
f
Operands:
0
≤ f ≤ 127
Operation:
(W)
→ (f)
Status Affected:
None
Encoding:
00
0000
1fff
ffff
Description:
Move data from W register to register
'f'
.
Words:
1
Cycles:
1
Example
MOVWF
OPTION
Before Instruction
OPTION =
0xFF
W
=
0x4F
After Instruction
OPTION =
0x4F
W
=
0x4F



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