Datasheet

 1998-2013 Microchip Technology Inc. DS30289C-page 223
PIC17C7XX
RLNCF Rotate Left f (no carry)
Syntax: [ label ] RLNCF f,d
Operands: 0  f  255
d  [0,1]
Operation: f<n>  d<n+1>;
f<7>  d<0>
Status Affected: None
Encoding:
0010 001d ffff ffff
Description:
The contents of register 'f' are rotated
one bit to the left. If 'd' is 0, the result is
placed in WREG. If 'd' is 1, the result is
stored back in register 'f'.
Words: 1
Cycles: 1
Q Cycle Activity:
Q1 Q2 Q3 Q4
Decode Read
register 'f'
Process
Data
Write to
destination
Example:
RLNCF REG, 1
Before Instruction
C=0
REG = 1110 1011
After Instruction
C=
REG = 1101 0111
register f
RRCF Rotate Right f through Carry
Syntax: [ label ] RRCF f,d
Operands: 0  f  255
d  [0,1]
Operation: f<n>  d<n-1>;
f<0>  C;
C  d<7>
Status Affected: C
Encoding:
0001 100d 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
WREG. If 'd' is 1, the result is placed
back in register 'f'.
Words: 1
Cycles: 1
Q Cycle Activity:
Q1 Q2 Q3 Q4
Decode Read
register 'f'
Process
Data
Write to
destination
Example:
RRCF REG1,0
Before Instruction
REG1 = 1110 0110
C=0
After Instruction
REG1 = 1110 0110
WREG = 0111 0011
C=0
C
register f