Function alignment

crates/vm/src/datastack.rs:248–255

()

    #[test]
    fn alignment() {
        let mut ds = DataStack::new();
        for size in [1, 7, 15, 16, 17, 31, 32, 33, 64, 100] {
            let p = ds.push(size);
            assert_eq!(p as usize % ALIGN, 0, "alignment violated for size {size}");
            unsafe { ds.pop(p) };
        }
    }
}