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DM163006 Datasheet(PDF) 243 Page - Microchip Technology

Part # DM163006
Description  High-Performance ROM-less Microcontrollers
PDF  320 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

DM163006 Datasheet(HTML) 243 Page - Microchip Technology

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 2001 Microchip Technology Inc.
Advance Information
DS39541A-page 243
PIC18C601/801
NEGF
Negate f
Syntax:
[label]
NEGF
f [,a]
Operands:
0
≤ f ≤ 255
a
∈ [0,1]
Operation:
( f ) + 1
→ f
Status Affected:
N,OV, C, DC, Z
Encoding:
0110
110a
ffff
ffff
Description:
Location ’f’ is negated using two’s
complement. The result is placed in
the data memory location 'f'. If ’a’ is
0, the Access Bank will be selected,
overriding the BSR value. If ’a’ is 1,
the Bank will be selected as per the
BSR value.
Words:
1
Cycles:
1
Q Cycle Activity:
Q1
Q2
Q3
Q4
Decode
Read
register ’f’
Process
Data
Write
register ’f’
Example:
NEGF
REG
Before Instruction
REG
=
0011 1010
[3Ah]
N=
?
OV
=
?
C=
?
DC
=
?
Z=
?
After Instruction
REG
=
1100 0110
[0C6h]
N=
1
OV
=
0
C=
0
DC
=
0
Z=
0
NOP
No Operation
Syntax:
[ label ]
NOP
Operands:
None
Operation:
No operation
Status Affected:
None
Encoding:
0000
1111
0000
xxxx
0000
xxxx
0000
xxxx
Description:
No operation.
Words:
1
Cycles:
1
Q Cycle Activity:
Q1
Q2
Q3
Q4
Decode
No
operation
No
operation
No
operation
Example:
None.



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