PIC18F2331-E/ML MICROCHIP [Microchip Technology], PIC18F2331-E/ML Datasheet - Page 315

• Manufacturer Part Number: PIC18F2331-E/ML
• Description: 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High-Performance PWM and A/D
• Manufacturer: MICROCHIP [Microchip Technology]

RETURN
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
 2010 Microchip Technology Inc.
Q Cycle Activity:
After Interrupt
operation
Decode
No
PC = TOS
Q1
operation
operation
Return from Subroutine
[ label ]
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.
1
2
RETURN
0000
No
No
Q2
RETURN [s]
0000
operation
Process
Data
No
Q3
0001
from stack
operation
POP PC
PIC18F2331/2431/4331/4431
No
Q4
001s
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
=
=
=
=
=
register ‘f’
Rotate Left f through Carry
[ label ]
0  f  255
d  [0,1]
a  [0,1]
(f<n>)  dest<n + 1>,
(f<7>)  C,
(C)  dest<0>
C, N, Z
The contents of register, ‘f’, are rotated
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 regis-
ter, ‘f’. If ‘a’ is ‘0’, the Access Bank will
be selected, overriding the BSR value.
If ‘a’ = 1, then the bank will be selected
as per the BSR value.
1
1
RLCF
Read
Q2
0011
1110 0110
0
1110 0110
1100 1100
1
C
RLCF
01da
Process
Data
Q3
REG, W
register f
DS39616D-page 315
f [,d [,a]]
ffff
destination
Write to
Q4
ffff