mruby on web - over 4kb

Drop here "mrb" file (ver 2.0) to run on mruby on web!
This minimum VM supported just simple calc only!
Modify yourself you like!
(If VM size does not exceed 4KB, you can use without-worker version)
API: mruby-l1vm, WebAssembly / wasm
APP: CC BY fukuno.jig.jp