Subzero. WASM. Additional progress.

README-wasm.md

 # Wasm Prototype Experiment Notes
 
 Here's the command I use to test:
 
 ```
 LD_LIBRARY_PATH=~/nacl/v8/out/native/lib.target make -j48 \
     -f Makefile.standalone WASM=1 && \
 LD_LIBRARY_PATH=~/nacl/v8/out/native/lib.target ./pnacl-sz -O2 -filetype=asm \
     -target=arm32 ./torture-s2wasm-sexpr-wasm/20000112-1.c.s.wast.wasm
 ```
 
 You'll probably need to adjust your `LD_LIBRARY_PATH` to point to where your v8
 libraries are.
 
 You'll need to build v8 as a shared library. Build it like this:
 
 ```
 make -j48 native component=shared_library
 ```
 
-`wasm-run-torture-tests.py` can be used to run all the tests, or some subset.
-Running a subset will enable verbose output. You can download the torture tests
-from the [WebAssembly waterfall](https://wasm-stat.us/console).
+`wasm-run-torture-tests.py` can be used to run all the tests, or some
+subset. Running a subset will enable verbose output. You can download the
+torture tests from the [WebAssembly waterfall](https://wasm-stat.us/console) or
+by running `./fetch-torture-tests.sh`.
+
+
+To compile and run an executable, do the following from the subzero directory.
+
+```
+./pnacl-sz -filetype=obj -o foo.o foo.wasm
+clang -m32 foo.o src/wasm-runtime.c
+./a.out
+```
+
+Other useful commands:
+
+Compile a C file to a .wasm
+```
+./wasm-install/bin/emscripten/emcc hello-wasm.c -s BINARYEN=1
+./wasm-install/bin/sexpr-wasm a.out.wast -o a.out.wasm
+```