Section 11: TSP command reference Series 3700A System Switch/Multimeter Reference Manual
11-14 3700AS-901-01 Rev. D/June 2018
bit.setfield()
This function overwrites a bit field at a specified index position.
Usage
result = bit.setfield(value, index, width, fieldValue)
Result of the bit manipulation
One-based bit position in value to set (1 to 32)
The number of bits to include in the field (1 to 32)
Value to write to the field
Details
This function returns result, which is value with a field of bits overwritten, starting at index. The
index specifies the position of the least significant bit of value. The width bits starting at index
are set to fieldValue.
The least significant bit of value is at index position 1; the most significant bit is at index
position 32.
Before setting the field of bits, any fractional parts of value and fieldValue are truncated to form
integers.
If fieldValue is wider than width, the most significant bits of the fieldValue that exceed the
width are truncated. For example, if width is 4 bits and the binary value for fieldValue is 11110
(5 bits), the most significant bit of fieldValue is truncated and a binary value of 1110 is used.
Example
testResult = bit.setfield(15, 2, 3, 5)
print(testResult)
The binary equivalent of decimal 15 is 1111. After
overwriting it with a decimal 5 (binary 101) at index
position 2, the returned value is decimal 11 (binary
1011).
Output:
1.10000e+01
Also see
Bit manipulation and logic operations (on page 9-21)
bit.get() (on page 11-11)
bit.set() (on page 11-13)
bit.getfield() (on page 11-12)
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