const fn make_col_map() -> CpuCols<usize> {
    let indices_arr = indices_arr::<NUM_CPU_COLS>();
    unsafe { transmute::<[usize; NUM_CPU_COLS], CpuCols<usize>>(indices_arr) }
}
Creates the column map for the CPU.
crates/core/machine/src/cpu/columns/mod.rs