PIC16F62X
15.1
Instruction Descriptions
ANDLW
AND Literal with W
ADDLW
Add Literal and W
Syntax:
[ label ] ANDLW
k
Syntax:
[ label ] ADDLW
k
Operands:
Operation:
Status Affected:
Encoding:
Description:
0 ≤ k ≤ 255
Operands:
0 ≤ k ≤ 255
(W) + k → (W)
C, DC, Z
(W) .AND. (k) → (W)
Operation:
Z
Status Affected:
Encoding:
11
1001
kkkk
kkkk
11
111x
kkkk
kkkk
The contents of W register are
AND’ed with the eight bit literal 'k'. The
result is placed in the W register.
The contents of the W register are
added to the eight bit literal ’k’ and the
result is placed in the W register.
Description:
Words:
Cycles:
Example
1
1
Words:
Cycles:
Example
1
1
ANDLW
0x5F
ADDLW
0x15
Before Instruction
Before Instruction
W
=
0xA3
0x03
W
=
0x10
0x25
After Instruction
After Instruction
W
=
W
=
ADDWF
Syntax:
Add W and f
ANDWF
Syntax:
AND W with f
[ label ] ADDWF f,d
[ label ] ANDWF f,d
Operands:
0 ≤ f ≤ 127
Operands:
0 ≤ f ≤ 127
d
[0,1]
d
[0,1]
Operation:
(W) + (f) → (dest)
Operation:
(W) .AND. (f) → (dest)
Status Affected:
Encoding:
C, DC, Z
Status Affected:
Encoding:
Z
00
0111
dfff
ffff
00
0101
dfff
ffff
Add the contents of the W register
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’.
AND the W register 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'.
Description:
Description:
Words:
Cycles:
Example
1
1
Words:
Cycles:
Example
1
1
ADDWF
FSR,
0
ANDWF
FSR, 1
Before Instruction
Before Instruction
W
FSR =
=
0x17
0xC2
W
FSR =
=
0x17
0xC2
After Instruction
After Instruction
W
FSR =
=
0xD9
0xC2
W
FSR =
=
0x17
0x02
1999 Microchip Technology Inc.
Preliminary
DS40300B-page 115
MICROCHIP [ MICROCHIP ]
