
1999 Microchip Technology Inc.
DS40182C-page 67
PIC16CE62X
11.1
Instruction Descriptions
ADDLW
Add Literal and W
Syntax:
[
label ] ADDLW
k
Operands:
0
≤ k ≤ 255
Operation:
(W) + k
→ (W)
Status Affected:
C, DC, Z
Encoding:
11
111x
kkkk
Description:
The contents of the W register are
added to the eight bit literal ’k’ and the
result is placed in the W register
.
Words:
1
Cycles:
1
Example
ADDLW
0x15
Before Instruction
W
=
0x10
After Instruction
W
=
0x25
ADDWF
Add W and f
Syntax:
[
label ] ADDWF
f,d
Operands:
0
≤ f ≤ 127
d
∈ [0,1]
Operation:
(W) + (f)
→ (dest)
Status Affected:
C, DC, Z
Encoding:
00
0111
dfff
ffff
Description:
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’
.
Words:
1
Cycles:
1
Example
ADDWF
FSR,
0
Before Instruction
W
=
0x17
FSR =
0xC2
After Instruction
W=
0xD9
FSR =
0xC2
ANDLW
AND Literal with W
Syntax:
[
label ] ANDLW
k
Operands:
0
≤ k ≤ 255
Operation:
(W) .AND. (k)
→ (W)
Status Affected:
Z
Encoding:
11
1001
kkkk
Description:
The contents of W register are
AND’ed with the eight bit literal 'k'. The
result is placed in the W register
.
Words:
1
Cycles:
1
Example
ANDLW
0x5F
Before Instruction
W=
0xA3
After Instruction
W
=
0x03
ANDWF
AND W with f
Syntax:
[
label ] ANDWF
f,d
Operands:
0
≤ f ≤ 127
d
∈ [0,1]
Operation:
(W) .AND. (f)
→ (dest)
Status Affected:
Z
Encoding:
00
0101
dfff
ffff
Description:
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'
.
Words:
1
Cycles:
1
Example
ANDWF
FSR,
1
Before Instruction
W
=
0x17
FSR =
0xC2
After Instruction
W
=
0x17
FSR =
0x02