PIC16F1938_13 Datasheet, PDF (372/488 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver

PIC16(L)F1938/9
MOVIW
Syntax:
Operands:
Operation:
Status Affected:
Move INDFn to W
[ label ] MOVIW ++FSRn
[ label ] MOVIW --FSRn
[ label ] MOVIW FSRn++
[ label ] MOVIW FSRn--
[ label ] MOVIW k[FSRn]
n  [0,1]
mm  [00,01, 10, 11]
-32  k  31
INDFn  W
Effective address is determined by
• FSR + 1 (preincrement)
• FSR - 1 (predecrement)
• FSR + k (relative offset)
After the Move, the FSR value will be
either:
• FSR + 1 (all increments)
• FSR - 1 (all decrements)
• Unchanged
Z
Mode
Syntax
mm
Preincrement
++FSRn
00
Predecrement
--FSRn
01
Postincrement
FSRn++
10
Postdecrement
FSRn--
11
Description:
This instruction is used to move data
between W and one of the indirect
registers (INDFn). Before/after this
move, the pointer (FSRn) is updated by
pre/post incrementing/decrementing it.
Note: The INDFn registers are not
physical registers. Any instruction that
accesses an INDFn register actually
accesses the register at the address
specified by the FSRn.
FSRn is limited to the range 0000h -
FFFFh. Incrementing/decrementing it
beyond these bounds will cause it to
wrap-around.
MOVLB
Syntax:
Operands:
Operation:
Status Affected:
Description:
Move literal to BSR
[ label ] MOVLB k
0  k  15
k  BSR
None
The 5-bit literal ‘k’ is loaded into the
Bank Select Register (BSR).
MOVLP
Syntax:
Operands:
Operation:
Status Affected:
Description:
Move literal to PCLATH
[ label ] MOVLP k
0  k  127
k  PCLATH
None
The seven-bit literal ‘k’ is loaded into the
PCLATH register.
MOVLW
Syntax:
Operands:
Operation:
Status Affected:
Description:
Words:
Cycles:
Example:
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 assem-
ble as ‘0’s.
1
1
MOVLW 0x5A
After Instruction
W = 0x5A
MOVWF
Syntax:
Operands:
Operation:
Status Affected:
Description:
Words:
Cycles:
Example:
Move W to f
[ label ] MOVWF f
0  f  127
(W)  (f)
None
Move data from W register to register
‘f’.
1
1
MOVWF OPTION_REG
Before Instruction
OPTION_REG = 0xFF
W = 0x4F
After Instruction
OPTION_REG = 0x4F
W = 0x4F
DS40001574C-page 372
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