
PIC12F683
DS41211D-page 108
2007 Microchip Technology Inc.
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’.
Words:
1
Cycles:
1
Example:
RLF
REG1,0
Before Instruction
REG1
=
1110 0110
C=
0
After Instruction
REG1
=
1110 0110
W
=
1100 1100
C=
1
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 register ‘f’.
Register f
C
Register f
C
SLEEP
Enter Sleep mode
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.
SUBLW
Subtract W from literal
Syntax:
[ label ] SUBLW k
Operands:
0
≤ k ≤ 255
Operation:
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.
C = 0
W
> k
C = 1
W
≤ k
DC = 0
W<3:0>
> k<3:0>
DC = 1
W<3:0>
≤ k<3:0>