PIC16F87 Datasheet, PDF (156/214 Pages) Microchip Technology – 18/20/28-Pin Enhanced FLASH Microcontrollers with nanoWatt Technology

PIC16F87/88
IORLW
Syntax:
Operands:
Operation:
Status Affected:
Description:
Inclusive OR Literal with W
[ label ] IORLW k
0 ≤ k ≤ 255
(W) .OR. k → (W)
Z
The contents of the W register are
OR’d with the eight-bit literal ‘k’.
The result is placed in the W
register.
MOVLW
Syntax:
Operands:
Operation:
Status Affected:
Description:
Move Literal to W
[ label ] MOVLW k
0 ≤ k ≤ 255
k → (W)
None
The eight-bit literal ‘k’ is loaded
into W register. The don’t cares
will assemble as ‘0’s.
IORWF
Syntax:
Operands:
Operation:
Status Affected:
Description:
Inclusive OR W with f
[ label ] IORWF f,d
0 ≤ f ≤ 127
d ∈ [0,1]
(W) .OR. (f) → (destination)
Z
Inclusive OR the W register with
register ‘f’. If ‘d’ = 0, the result is
placed in the W register. If ‘d’ = 1,
the result is placed back in
register ‘f’.
MOVWF
Syntax:
Operands:
Operation:
Status Affected:
Description:
Move W to f
[ label ] MOVWF f
0 ≤ f ≤ 127
(W) → (f)
None
Move data from W register to
register ‘f’.
MOVF
Syntax:
Operands:
Operation:
Status Affected:
Description:
Move f
[ label ] MOVF f,d
0 ≤ f ≤ 127
d ∈ [0,1]
(f) → (destination)
Z
The contents of register ‘f’ are
moved to a destination dependant
upon the status of ‘d’. If ‘d’ = 0,
the destination 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.
NOP
Syntax:
Operands:
Operation:
Status Affected:
Description:
No Operation
[ label ] NOP
None
No operation
None
No operation.
DS30487B-page 154
Preliminary
 2003 Microchip Technology Inc.