data.representation ≡
template <auto OutputWidth, typename T> inline bool[OutputWidth] binary_to_one_hot(T index) §source
Generate a onehot of the specified width. A onehot is an array of
booleans with a single value set to true. Calling with
OutputWidth 8 and index 1 returns an array of
8 bools with only bool 1 set to true. Or in binary, 00000010.
template <typename T, auto Count> inline auto onehot_mux(uint<Count> onehot, T[Count] data) §source
Similar to mux, but takes a onehot rather
than an index as the first parameter. Also takes an array rather than a
variable number of arguments for the selection list. The least
significant bit in the onehot corresponds to index 0 in the data
array.
Examples
>>> onehot_mux<uint2, 4>(1, {0, 1, 2, 3});
0
>>> onehot_mux<uint2, 4>(2, {0, 1, 2, 3});
1
>>> onehot_mux<uint2, 4>(4, {0, 1, 2, 3});
2The onehot must be valid which means it has exactly one
bit set. Like mux, onehot_mux requires that
Count is a power of two.
template <typename T> inline T endian_change(T input) §source
Change a value from big endian to little endian, or vice versa. The input type must be of a size that’s a multiple of 8 bits.
Example
>>> endian_change(0x12345678)
0x78563412