PIC12C5XX
MOVF
Move f
MOVWF
Syntax:
Move W to f
[ label ] MOVWF
0 ≤ f ≤ 31
Syntax:
Operands:
[ label ] MOVF f,d
f
0 ≤ f ≤ 31
Operands:
Operation:
d
[0,1]
(W) → (f)
Operation:
(f) → (dest)
Status Affected: None
Status Affected:
Encoding:
Z
0000
001f
ffff
Encoding:
0010
00df
ffff
Move data from the W register to regis-
Description:
ter 'f'.
The contents of register ’f’ is moved to
destination ’d’. If ’d’ is 0, destination is
the W register. If ’d’ is 1, the destination
is file register ’f’. ’d’ is 1 is useful to test
a file register since status flag Z is
affected.
Description:
Words:
1
1
Cycles:
Example:
MOVWF
TEMP_REG
Before Instruction
TEMP_REG
Words:
1
1
=
=
0xFF
0x4F
Cycles:
Example:
W
MOVF
FSR,
0
After Instruction
TEMP_REG
W
=
=
0x4F
0x4F
After Instruction
W
=
value in FSR register
NOP
No Operation
[ label ] NOP
None
MOVLW
Move Literal to W
[ label ] MOVLW
0 ≤ k ≤ 255
Syntax:
Syntax:
k
Operands:
Operation:
Operands:
Operation:
No operation
k → (W)
Status Affected: None
0000
0000
0000
Status Affected: None
Encoding:
Description:
Words:
1100
kkkk
kkkk
Encoding:
No operation.
The eight bit literal ’k’ is loaded into the
W register. The don’t cares will assem-
ble as 0s.
Description:
1
Cycles:
1
NOP
Example:
Words:
1
1
Cycles:
Example:
MOVLW
0x5A
After Instruction
W
=
0x5A
DS40139E-page 54
1999 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
