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PIC18FXX8 Datasheet, PDF (316/402 Pages) Microchip Technology – 28/40-Pin High-Performance, Enhanced Flash Microcontrollers with CAN Module | |||
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PIC18FXX8
RLNCF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Rotate Left f (no carry)
[ label ] RLNCF f [,d [,a]]
0 ⤠f ⤠255
d â [0,1]
a â [0,1]
(f<n>) â dest<n + 1>,
(f<7>) â dest<0>
N, Z
0100 01da ffff ffff
The contents of register âfâ are rotated
one bit to the left. If âdâ is â0â, the result is
placed in W. If âdâ is â1â, the result is
stored back in register âfâ (default). If âaâ
is â0â, the Access Bank will be selected,
overriding the BSR value. If âaâ is â1â,
then the bank will be selected as per
the BSR value (default).
register f
Words:
Cycles:
Q Cycle Activity:
Q1
Decode
1
1
Q2
Read
register âfâ
Q3
Process
Data
Q4
Write to
destination
Example:
RLNCF REG
Before Instruction
REG =
After Instruction
REG =
1010 1011
0101 0111
RRCF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Rotate Right f through Carry
[ label ] RRCF f [,d [,a]]
0 ⤠f ⤠255
d â [0,1]
a â [0,1]
(f<n>) â dest<n â 1>,
(f<0>) â C,
(C) â dest<7>
C, N, Z
0011 00da ffff ffff
The contents of register âfâ are rotated
one bit to the right through the Carry
flag. If âdâ is â0â, the result is placed in W.
If âdâ is â1â, the result is placed back in
register âfâ (default). If âaâ is â0â, the
Access Bank will be selected,
overriding the BSR value. If âaâ is â1â,
then the bank will be selected as per
the BSR value (default).
C
register f
Words:
Cycles:
Q Cycle Activity:
Q1
Decode
1
1
Q2
Read
register âfâ
Q3
Process
Data
Q4
Write to
destination
Example:
RRCF REG, W
Before Instruction
REG =
C
=
After Instruction
REG =
W
=
C
=
1110 0110
0
1110 0110
0111 0011
0
DS41159D-page 314
 2004 Microchip Technology Inc.
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