PIC12C67X_13 Datasheet, PDF (77/130 Pages) Microchip Technology – 8-Pin, 8-Bit CMOS Microcontroller with A/D Converter and EEPROM Data Memory

PIC12C67X
IORWF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
Inclusive OR W with f
[ label ] IORWF f,d
0  f  127
d  [0,1]
(W) .OR. (f)  (dest)
Z
00 0100 dfff ffff
Inclusive OR the W register with
register 'f'. If 'd' is 0, the result is
placed in the W register. If 'd' is 1,
the result is placed back in regis-
ter 'f'.
1
1
IORWF
RESULT, 0
Before Instruction
RESULT =
W
=
After Instruction
RESULT =
W
=
Z
=
0x13
0x91
0x13
0x93
1
MOVLW
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
Move Literal to W
[ label ] MOVLW k
0  k  255
k  (W)
None
11 00xx kkkk kkkk
The eight bit literal 'k' is loaded
into W register. The don’t cares
will assemble as 0’s.
1
1
MOVLW 0x5A
After Instruction
W = 0x5A
MOVF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
Move f
[ label ] MOVF f,d
0  f  127
d  [0,1]
(f)  (dest)
Z
00 1000 dfff ffff
The contents of register f are
moved to a destination dependant
upon the status of d. If d = 0, des-
tination is W register. If d = 1, the
destination is file register f itself.
d = 1 is useful to test a file register
since status flag Z is affected.
1
1
MOVF FSR, 0
After Instruction
W = value in FSR register
Z =1
MOVWF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example
Move W to f
[ label ] MOVWF f
0  f  127
(W)  (f)
None
00 0000 1fff ffff
Move data from W register to reg-
ister 'f'.
1
1
MOVWF
OPTION
Before Instruction
OPTION =
W
=
After Instruction
OPTION =
W
=
0xFF
0x4F
0x4F
0x4F
 1997-2013 Microchip Technology Inc.
DS30561C-page 77