PIC18F25K80 MICROCHIP [Microchip Technology], PIC18F25K80 Datasheet - Page 519

• Manufacturer Part Number: PIC18F25K80
• Manufacturer: MICROCHIP [Microchip Technology]

RETURN
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
 2011 Microchip Technology Inc.
Q Cycle Activity:
After Instruction:
operation
Decode
No
PC = TOS
Q1
operation
operation
Return from Subroutine
RETURN {s}
s  [0,1]
(TOS)  PC;
if s = 1 ,
(WS)  W,
(STATUSS)  STATUS,
(BSRS)  BSR,
PCLATU, PCLATH are unchanged
None
Return from subroutine. The stack is
popped and the top of the stack (TOS)
is loaded into the program counter. If
‘s’ = 1 , the contents of the shadow
registers WS, STATUSS and BSRS are
loaded into their corresponding
registers W, STATUS and BSR. If
‘s’ = 0 , no update of these registers
occurs (default).
1
2
RETURN
0000
No
No
Q2
0000
operation
Process
Data
No
Q3
0001
from stack
operation
POP PC
No
Q4
001s
Preliminary
PIC18F66K80 FAMILY
RLCF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
Q Cycle Activity:
Before Instruction
After Instruction
Decode
REG
C
REG
W
C
Q1
Rotate Left f through Carry
The contents of register ‘f’ are rotated
0  f  255
d  [0,1]
a  [0,1]
(f<n>)  dest<n + 1 >,
(f<7>)  C,
(C)  dest<0>
C, N, Z
one bit to the left through the Carry flag.
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 is selected.
If ‘a’ is ‘ 1 ’, the BSR is used to select the
GPR bank.
If ‘a’ is ‘ 0 ’ and the extended instruction
set is enabled, this instruction operates
in Indexed Literal Offset Addressing
mode whenever f  95 (5Fh). See
Section 29.2.3 “Byte-Oriented and
Bit-Oriented Instructions in Indexed
Literal Offset Mode”
1
1
register ‘f’
=
=
=
=
=
RLCF
Read
0011
RLCF
Q2
1110 0110
0
1110 0110
1100 1100
1
C
f {,d {,a}}
01da
Process
Data
REG, 0, 0
Q3
register f
DS39977C-page 519
for details.
ffff
destination
Write to
Q4
ffff