PIC16F84A_13 Datasheet, PDF (41/90 Pages) Microchip Technology – 18-pin Enhanced FLASH/EEPROM 8-Bit Microcontroller

PIC16F84A
RLF
Syntax:
Operands:
Operation:
Status Affected:
Description:
Rotate Left f through Carry
[ label ] RLF f,d
0  f  127
d  [0,1]
See description below
C
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'.
C
Register f
RRF
Syntax:
Operands:
Operation:
Status Affected:
Description:
Rotate Right f through Carry
[ label ] RRF f,d
0  f  127
d  [0,1]
See description below
C
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
register 'f'.
C
Register f
SLEEP
Syntax:
Operands:
Operation:
Status Affected:
Description:
[ label ] SLEEP
None
00h  WDT,
0  WDT prescaler,
1  TO,
0  PD
TO, PD
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.
SUBLW
Subtract W from Literal
Syntax:
Operands:
Operation:
[ label ] SUBLW k
0 k 255
k - (W) W)
Status Affected: C, DC, Z
Description:
The W register is subtracted (2’s
complement method) from the
eight-bit literal 'k'. The result is
placed in the W register.
SUBWF
Subtract W from f
Syntax:
[ label ] SUBWF f,d
Operands:
0 f 127
d  [0,1]
Operation:
(f) - (W) destination)
Status Affected: C, DC, Z
Description:
Subtract (2’s complement method)
W register from register 'f'. If 'd' is 0,
the result is stored in the W regis-
ter. If 'd' is 1, the result is stored
back in register 'f'.
SWAPF
Swap Nibbles in f
Syntax:
Operands:
Operation:
Status Affected:
Description:
[ label ] SWAPF f,d
0  f  127
d  [0,1]
(f<3:0>)  (destination<7:4>),
(f<7:4>)  (destination<3:0>)
None
The upper and lower nibbles of
register 'f' are exchanged. If 'd' is
0, the result is placed in W regis-
ter. If 'd' is 1, the result is placed in
register 'f'.
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DS35007C-page 41