Vault 7: Projects

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© 2005-2011 Microchip Technology Inc. DS70157F-page 377
Section 5. Instruction Descriptions
Instruction
Descriptions
5
RLNC
Rotate Left f without Carry
Implemented in: PIC24F PIC24H PIC24E dsPIC30F dsPIC33F dsPIC33E
X X X X X X
Syntax: {label:} RLNC{.B} f {,WREG}
Operands: f [0 ... 8191]
Operation: For byte operation:
(f<6:0>) Dest<7:1>
(f<7>) Dest<0>
For word operation:
(f<14:0>) Dest<15:1>
(f<15>) Dest<0>
Status Affected: N, Z
Encoding: 1101 0110 0BDf ffff ffff ffff
Description: Rotate the contents of the file register f one bit to the left and place the
result in the destination register. The Most Significant bit of f is stored in
the Least Significant bit of the destination, and the Carry flag is not
affected.
The optional WREG operand determines the destination register. If
WREG is specified, the result is stored in WREG. If WREG is not
specified, the result is stored in the file register.
The ‘B’ bit selects byte or word operation (‘0’ for word, ‘1’ for byte).
The ‘D’ bit selects the destination (‘0’ for WREG, ‘1’ for file register).
The ‘f’ bits select the address of the file register.
Note 1: The extension .B in the instruction denotes a byte operation
rather than a word operation. You may use a .W extension to
denote a word operation, but it is not required.
2: The WREG is set to working register W0.
Words: 1
Cycles:
1
(1)
Note 1:
In dsPIC33E and PIC24E devices, the listed cycle count does not apply to read and
read-modify-write operations on non-CPU Special Function Registers. For more
details, see
Note 3
in
Section 3.2.1 “Multi-Cycle Instructions”
.

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