12-14 Return to Section Topics 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: 1.200000e+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 an index of 1 and the most
significant bit has an index of 32.
• Prior 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 “Logic and bit operations” on page 12-10 for more information.
Also see bit.clear, bit.get, bit.getfield, bit.set, bit.test, bit.toggle
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: 1.100000e+01
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