PIC17C42 Microchip Technology, PIC17C42 Datasheet - Page 130
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PIC17C42
Manufacturer Part Number
PIC17C42
Description
High-Performance 8-Bit CMOS EPROM/ROM Microcontroller
Manufacturer
Microchip Technology
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PIC17C4X
NEGW
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Example:
DS30412C-page 130
Before Instruction
After Instruction
Decode
WREG
REG
WREG
REG
Q1
=
=
=
=
register 'f'
Negate W
[ label ]
0
s
WREG + 1
WREG + 1
WREG is negated using two’s comple-
ment. If 's' is 0 the result is placed in
WREG and data memory location 'f'. If
's' is 1 the result is placed only in data
memory location 'f'.
1
1
NEGW
OV, C, DC, Z
Read
0010
Q2
0011 1010 [0x3A],
1010 1011 [0xAB]
1100 0111 [0xC6]
1100 0111 [0xC6]
F
[0,1]
255
NEGW
REG,0
110s
Execute
(f);
s
Q3
f,s
ffff
register 'f'
and other
specified
register
Write
Q4
ffff
NOP
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Example:
Decode
None.
Q1
No Operation
[ label ]
None
No operation
None
No operation.
1
1
NOP
0000
Q2
1996 Microchip Technology Inc.
NOP
0000
Execute
Q3
0000
NOP
Q4
0000
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