P12C508 Microchip Technology, P12C508 Datasheet - Page 39

• Manufacturer Part Number: P12C508
• Description: 8-Pin / 8-Bit CMOS Microcontroller
• Manufacturer: Microchip Technology

ADDWF
Syntax:
Operands:
Operation:
Status Affected: C, DC, Z
Encoding:
Description:
Words:
Cycles:
Example:
ANDLW
Syntax:
Operands:
Operation:
Status Affected: Z
Encoding:
Description:
Words:
Cycles:
Example:
1996 Microchip Technology Inc.
Before Instruction
After Instruction
Before Instruction
After Instruction
W
FSR =
W
FSR =
W
W
=
=
=
=
Add W and f
[ label ] ADDWF
0
d
(W) + (f)
Add the contents of the W register and
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
ADDWF
0x17
0xC2
0xD9
0xC2
And literal with W
[ label ] ANDLW
0
(W).AND. (k)
The contents of the W register are
AND’ed with the eight-bit literal 'k'. The
result is placed in the W register
1
1
ANDLW
0xA3
0x03
0001
1110
f
k
31
255
FSR, 0
0x5F
11df
kkkk
(dest)
(W)
f,d
ffff
k
kkkk
.
Advance Information
.
ANDWF
Syntax:
Operands:
Operation:
Status Affected: Z
Encoding:
Description:
Words:
Cycles:
Example:
BCF
Syntax:
Operands:
Operation:
Status Affected: None
Encoding:
Description:
Words:
Cycles:
Example:
Before Instruction
After Instruction
Before Instruction
After Instruction
FSR =
W
FSR =
FLAG_REG = 0xC7
FLAG_REG = 0x47
W
=
=
[ label ] ANDWF
0
d
(W) .AND. (f)
The contents of the W register are
AND’ed with 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
ANDWF
0x17
0xC2
0x17
0x02
Bit Clear f
[ label ] BCF
0
0
0
Bit 'b' in register 'f' is cleared.
1
1
BCF
AND W with f
0001
0100
f
f
b
(f<b>)
PIC12C5XX
31
31
7
FSR,
FLAG_REG,
01df
bbbf
f,b
(dest)
DS40139A-page 39
1
ffff
ffff
f,d
7
.