Microchip Technology MCP1630DM-DDBS1 Data Sheet
©
2007 Microchip Technology Inc.
DS41211D-page 109
PIC12F683
SUBWF
Subtract W from f
Syntax:
[ label ] SUBWF f,d
Operands:
0
≤
f
≤
127
d
∈
[
0
,
1
]
Operation:
(f) - (W)
→ (
destination)
Status Affected: C, DC, Z
Description:
Subtract (2’s complement method)
W register from register ‘f’. If ‘d’ is
‘
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.
SWAPF
Swap Nibbles in f
Syntax:
[ label ] SWAPF
f,d
Operands:
0
≤
f
≤
127
d
∈
[
0
,
1
]
Operation:
(f<3:0>)
→
(destination<7:4>),
(f<7:4>)
→
(destination<3:0>)
Status Affected:
None
Description:
The upper and lower nibbles of
register ‘f’ are exchanged. If ‘d’ is
‘
register ‘f’ are exchanged. If ‘d’ is
‘
0
’, the result is placed in the W
register. If ‘d’ is ‘
1
’, the result is
placed in register ‘f’.
C =
0
W
>
f
C =
1
W
≤
f
DC =
0
W<3:0>
>
f<3:0>
DC =
1
W<3:0>
≤
f<3:0>
XORLW
Exclusive OR literal with W
Syntax:
[ label ] XORLW k
Operands:
0
≤
k
≤
255
Operation:
(W) .XOR. k
→ (
W)
Status Affected:
Z
Description:
The contents of the W register
are XOR’ed with the eight-bit
literal ‘k’. The result is placed in
the W register.
are XOR’ed with the eight-bit
literal ‘k’. The result is placed in
the W register.
XORWF
Exclusive OR W with f
Syntax:
[ label ] XORWF f,d
Operands:
0
≤
f
≤
127
d
∈
[
0
,
1
]
Operation:
(W) .XOR. (f)
→ (
destination)
Status Affected:
Z
Description:
Exclusive OR the contents of the
W register with register ‘f’. If ‘d’ is
‘
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’.