PIC12C508A Microchip Technology, PIC12C508A Datasheet - Page 56

• Manufacturer Part Number: PIC12C508A
• Description: 8-Pin/ 8-Bit CMOS Microcontrollers
• Manufacturer: Microchip Technology

PIC12C5XX
SLEEP
Syntax:
Operands:
Operation:
Status Affected: TO, PD, GPWUF
Encoding:
Description:
Words:
Cycles:
Example:
DS40139E-page 56
Enter SLEEP Mode
[ label ]
None
00h
0
1
0
Time-out status bit (TO) is set. The
power down status bit (PD) is cleared.
GPWUF is unaffected.
The WDT and its prescaler are
cleared.
The processor is put into SLEEP mode
with the oscillator stopped. See sec-
tion on SLEEP for more details.
1
1
SLEEP
0000
WDT prescaler;
TO;
PD
WDT;
SLEEP
0000
0011
SUBWF
Syntax:
Operands:
Operation:
Status Affected: C, DC, Z
Encoding:
Description:
Words:
Cycles:
Example 1:
Example 2:
Example 3:
Before Instruction
After Instruction
Before Instruction
After Instruction
Before Instruction
After Instruction
REG1
W
C
REG1
W
C
REG1
W
C
REG1
W
C
REG1
W
C
REG1
W
C
Subtract W from f
[ label ]
0
d
(f) – (W)
Subtract (2’s complement method) the
W register from register 'f'. If 'd' is 0 the
result is stored in the W register. If 'd' is
1 the result is stored back in register 'f'.
1
1
SUBWF
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
0000
f
[0,1]
3
2
?
1
2
1
2
2
?
0
2
1
1
2
?
FF
2
0
31
1999 Microchip Technology Inc.
SUBWF f,d
REG1, 1
; result is positive
; result is zero
; result is negative
10df
dest)
ffff