Datasheet

 1999-2013 Microchip Technology Inc. Preliminary DS41124D-page 119
PIC16C745/765
RETFIE Return from Interrupt
Syntax: [
label ] RETFIE
Operands: None
Operation: TOS  PC,
1  GIE
Status Affected: None
RETLW Return with Literal in W
Syntax: [
label ] RETLW k
Operands: 0  k  255
Operation: k  (W);
TOS  PC
Status Affected: None
Description: The W register is loaded with the
eight bit literal 'k'. The program
counter is loaded from the top of
the stack (the return address).
This is a two cycle instruction.
RETURN Return from Subroutine
Syntax: [
label ] RETURN
Operands: None
Operation: TOS  PC
Status Affected: None
Description: Return from subroutine. The stack
is POPed and the top of the stack
(TOS) is loaded into the program
counter. This is a two cycle
instruction.
RLF Rotate Left f through Carry
Syntax: [
label ] RLF f,d
Operands: 0  f  127
d  [0,1]
Operation: See description below
Status Affected: C
Description: 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 the W register.
If 'd' is 1, the result is stored back
in register 'f'.
RRF Rotate Right f through Carry
Syntax: [
label ] RRF f,d
Operands: 0  f  127
d  [0,1]
Operation: See description below
Status Affected: C
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 the W register. If 'd' is
1, the result is placed back in reg-
ister 'f'.
SLEEP
Syntax: [
label
]
SLEEP
Operands: None
Operation: 00h  WDT,
0  WDT prescaler,
1  TO
,
0  PD
Status Affected: TO, PD
Description: The power-down status bit, PD
is cleared. Time-out status bit,
TO
is set. Watchdog Timer and
its prescaler are cleared.
The processor is put into SLEEP
mode with the oscillator stopped.
See Section 13.9 for more
details.
Register fC
Register fC