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PIC18F2450_08 Datasheet, PDF (263/324 Pages) Microchip Technology – 28/40/44-Pin, High-Performance, 12 MIPS, Enhanced Flash, USB Microcontrollers with nanoWatt Technology | |||
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PIC18F2450/4450
ADDWF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Q1
Decode
ADD W to Indexed
(Indexed Literal Offset mode)
ADDWF [k] {,d}
0 ⤠k ⤠95
d â [0,1]
(W) + ((FSR2) + k) â dest
N, OV, C, DC, Z
0010 01d0 kkkk kkkk
The contents of W are added to the
contents of the register indicated by
FSR2, offset by the value âkâ.
If âdâ is â0â, the result is stored in W. If âdâ
is â1â, the result is stored back in
register âfâ (default).
1
1
Q2
Read âkâ
Q3
Process
Data
Q4
Write to
destination
Example:
ADDWF [OFST] ,0
Before Instruction
W
OFST
FSR2
Contents
of 0A2Ch
After Instruction
W
Contents
of 0A2Ch
= 17h
= 2Ch
= 0A00h
= 20h
= 37h
= 20h
BSF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Q1
Decode
Bit Set Indexed
(Indexed Literal Offset mode)
BSF [k], b
0 ⤠f ⤠95
0â¤bâ¤7
1 â ((FSR2) + k)<b>
None
1000 bbb0 kkkk kkkk
Bit âbâ of the register indicated by FSR2,
offset by the value âkâ, is set.
1
1
Q2
Read
register âfâ
Q3
Process
Data
Q4
Write to
destination
Example:
BSF
Before Instruction
FLAG_OFST
FSR2
Contents
of 0A0Ah
After Instruction
Contents
of 0A0Ah
[FLAG_OFST], 7
= 0Ah
= 0A00h
= 55h
= D5h
SETF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Q1
Decode
Set Indexed
(Indexed Literal Offset mode)
SETF [k]
0 ⤠k ⤠95
FFh â ((FSR2) + k)
None
0110 1000 kkkk kkkk
The contents of the register indicated by
FSR2, offset by âkâ, are set to FFh.
1
1
Q2
Read âkâ
Q3
Process
Data
Q4
Write
register
Example:
SETF
Before Instruction
OFST
=
FSR2
=
Contents
of 0A2Ch
=
After Instruction
Contents
of 0A2Ch
=
[OFST]
2Ch
0A00h
00h
FFh
© 2008 Microchip Technology Inc.
DS39760D-page 261
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