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12-14
Return to
2600S-901-01 Rev. C / January 2008
Section 12: Instrument Control Library
Series 2600 System SourceMeter® Instruments Reference Manual
Example
The binary equivalent of decimal 8 is 1000. If the bit at
index3
is set to 1, the returned
value
will be decimal 12 (binary 1100):
value = bit.set(8, 3)
print(value)
Output:
1.01
bit.setfield
Function
Overwrites a bit field at a given index position.
Usage
value = bit.setfield(value1, index, width, fieldvalue)
value1
Given
number.
index
Index position of the least significant bit of the
field; 1 to (33 –
width
).
width
Field width – number of bits in the field; 1 to 24.
fieldvalue
Value to write to the field.
value
Returned value of the new number.
Remarks
• This function returns
value
, which is
value1
with a field of bits overwritten,
starting
at
the given
index
position. The
index
specifies the position of the least significant bit of
the given field.
The
width
bits
starting at the given index will be set to the value given by
fieldvalue
. The least significant bit in
value1
has a
n index of 1 and the most
significant bit has an index of 32.
•
P
rior to setting the field of bits, any fractional parts of
value1
and
fieldvalue
will be
truncated to make them integers.
• If the
fieldvalue
is wider than the
width
, the extra most significant bits of the
fieldvalue
will be truncated. For example, assume the
width
is 4 bits, and the binary
value for
fieldwidth
is 11110 (5 bits). The most significant bit of
fieldwidth
will be
truncated, and a binary value of 1110 will be used as the
fieldvalue
.
• See “
for more information.
Also see
,
,
,
Example
The binary equivalent of decimal 15 is 1111. After overwriting it with a decimal 5 (binary
101) at index position 2, the returned
value
will be decimal 11 (binary 1011):
value = bit.setfield(15, 2, 3, 5)
print(value)
Output:
1.01