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PIC18F242 bảng dữ liệu(PDF) 246 Page - Microchip Technology

tên linh kiện PIC18F242
Giải thích chi tiết về linh kiện  High-Performance, Enhanced Flash Microcontrollers with 10-Bit A/D
PDF  332 Pages
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nhà sản xuất  MICROCHIP [Microchip Technology]
Trang chủ  http://www.microchip.com
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PIC18F242 bảng dữ liệu(HTML) 246 Page - Microchip Technology

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PIC18FXX2
DS39564C-page 244
© 2006 Microchip Technology Inc.
RLNCF
Rotate Left f (no carry)
Syntax:
[
label ]
RLNCF
f [,d [,a]
Operands:
0
≤ f ≤ 255
d
∈ [0,1]
a
∈ [0,1]
Operation:
(f<n>)
→ dest<n+1>,
(f<7>)
→ dest<0>
Status Affected:
N, Z
Encoding:
0100
01da
ffff
ffff
Description:
The contents of register 'f' are
rotated one bit to the left. If 'd' is 0,
the result is placed in W. If 'd' is 1,
the result is stored back in register
'f' (default). If ’a’ is 0, the Access
Bank will be selected, overriding
the BSR value. If ’a’ is 1, then the
bank will be selected as per the
BSR value (default).
Words:
1
Cycles:
1
Q Cycle Activity:
Q1
Q2
Q3
Q4
Decode
Read
register 'f'
Process
Data
Write to
destination
Example:
RLNCF
REG, 1, 0
Before Instruction
REG
=
1010 1011
After Instruction
REG
=
0101 0111
register f
RRCF
Rotate Right f through Carry
Syntax:
[
label ]
RRCF
f [,d [,a]
Operands:
0
≤ f ≤ 255
d
∈ [0,1]
a
∈ [0,1]
Operation:
(f<n>)
→ dest<n-1>,
(f<0>)
→ C,
(C)
→ dest<7>
Status Affected:
C, N, Z
Encoding:
0011
00da
ffff
ffff
Description:
The contents of register 'f' are
rotated one bit to the right through
the Carry Flag. If 'd' is 0, the result
is placed in W. If 'd' is 1, the result
is placed back in register 'f'
(default). If ‘a’ is 0, the Access
Bank will be selected, overriding
the BSR value. If ’a’ is 1, then the
bank will be selected as per the
BSR value (default).
Words:
1
Cycles:
1
Q Cycle Activity:
Q1
Q2
Q3
Q4
Decode
Read
register 'f'
Process
Data
Write to
destination
Example:
RRCF
REG, 0, 0
Before Instruction
REG
=
1110 0110
C=
0
After Instruction
REG
=
1110 0110
W
=
0111 0011
C=
0
C
register f



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