The following code snippet generates truth tables for the 3-variable functions sum
and carry
for a 1-bit full-adder with carry.
#include <kitty/kitty.hpp>
dynamic_truth_table a( 3 ), b( 3 ), c( 3 );
create_nth_var( a, 0 );
create_nth_var( b, 1 );
create_nth_var( c, 2 );
const auto sum = a ^ b ^ c;
const auto carry = ternary_majority( a, b, c );
One can use static_truth_table
instead of dynamic_truth_table
, if the number of variables is known at compile-time. The interface stays the same.
#include <kitty/kitty.hpp>
static_truth_table<3> a, b, c;
create_nth_var( a, 0 );
create_nth_var( b, 1 );
create_nth_var( c, 2 );
const auto sum = a ^ b ^ c;
const auto carry = ternary_majority( a, b, c );
kitty is part of the EPFL logic synthesis libraries. The other libraries and several examples on how to use and integrate the libraries can be found in the logic synthesis tool showcase.