PIC18F2331_10 Datasheet, PDF (317/392 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High-Performance PWM and A/D

PIC18F2331/2431/4331/4431
RRNCF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Rotate Right f (No Carry)
[ label ] RRNCF f [,d [,a]]
0  f  255
d  [0,1]
a  [0,1]
(f<n>)  dest<n – 1>,
(f<0>)  dest<7>
N, Z
0100 00da ffff ffff
The contents of register, ‘f’, are rotated
one bit to the right. If ‘d’ is ‘0’, the result
is placed in W. If ‘d’ is ‘1’, the result is
placed back in register, ‘f’. If ‘a’ is ‘0’,
the Access Bank will be selected, over-
riding the BSR value. If ‘a’ is ‘1’, then
the bank will be selected as per the
BSR value.
register f
Words:
Cycles:
Q Cycle Activity:
Q1
Decode
1
1
Q2
Read
register ‘f’
Q3
Process
Data
Q4
Write to
destination
Example 1:
RRNCF REG, 1, 0
Before Instruction
REG = 1101 0111
After Instruction
REG = 1110 1011
Example 2:
RRNCF REG, W
Before Instruction
W
=?
REG = 1101 0111
After Instruction
W
=
REG =
1110 1011
1101 0111
SETF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Q1
Decode
Set f
[ label ] SETF f [,a]
0  f  255
a [0,1]
FFh  f
None
0110 100a ffff ffff
The contents of the specified register
are set to FFh. 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.
1
1
Q2
Read
register ‘f’
Q3
Process
Data
Q4
Write
register ‘f’
Example:
SETF
Before Instruction
REG
=
After Instruction
REG
=
REG
0x5A
0xFF
 2010 Microchip Technology Inc.
DS39616D-page 317