Cheng Shao · Cheng Shao
--- a/README.md
+++ b/README.md
+possible to use the `ccall` calling convention for foreign exports.
+It's still possible to exchange large values between Haskell and
+JavaScript:
+
+- Add `--export` flag for `malloc`/`free`. You can now allocate and
+  free linear memory buffers that can be visible to the Haskell world,
+  since the entire linear memory is available as the `memory` export.
+- In the Haskell world, you can pass `Ptr` as foreign export
+  argument/return values.
+- You can also use `mallocBytes` in `Foreign.Marshal.Alloc` to
+  allocate buffers in the Haskell world. A buffer allocated by
+  `mallocBytes` in Haskell can be passed to JavaScript and be freed by
+  the exported `free`, and vice versa.
+
+Now you can create and manage C buffers, you can create and pass the
+correct `argc`/`argv` if you want `getArgs`/`getProgName` to work.