11 stable releases
1.1.5 | Jun 19, 2024 |
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1.1.4 |
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1.0.6 | Dec 31, 2023 |
1.0.3 | Oct 23, 2023 |
0.1.1 | Aug 17, 2023 |
#190 in Math
75 downloads per month
Used in quaigh
195KB
5K
SLoC
Logic function manipulation using truth tables (LUTs)
The crate implements truth table datastructures, either arbitrary-size truth tables
(Lut
), or more efficient
fixed-size truth tables (Lut2
to Lut12
).
They provide logical operators and utility functions for analysis, canonization and decomposition.
Some support is available for other standard representation, such as Sum-of-Products
(Sop
).
API and documentation try to follow the same terminology as the C++ library Kitty.
Examples
Create a constant-one Lut with five variables. Check its hexadecimal value.
let lut = Lut::one(5);
assert_eq!(lut.to_string(), "Lut5(ffffffff)");
Create a Lut4 (four variables) which is the logical and of the 1st and 3rd. Check its hexadecimal value.
let lut = Lut4::nth_var(0) & Lut4::nth_var(2);
assert_eq!(lut.to_string(), "Lut4(a0a0)");
Create a random Lut6 (six variables). Display its hexadecimal value.
let lut = Lut6::random();
print!("{}", lut);
Create the parity function on three variables, and check that in can be decomposed as a Xor. Check its value in binary.
let lut = Lut::parity(3);
assert_eq!(lut.top_decomposition(0), DecompositionType::Xor);
assert_eq!(format!("{:b}", lut), "Lut3(10010110)");
Dependencies
~0.2–3.5MB
~36K SLoC