ref: ffccbcf5c911599f8264b3024765c4f1b91a28c8
dir: /lib/std/memops.myr/
use "types.use" pkg std = pkglocal extern const memblit : (src : byte#, dst : byte#, len : std.size -> void) pkglocal extern const memfill : (src : byte#, val : byte, len : std.size -> void) ;;