Rewrite the install instructions without init.sh.

Cygwin instructions return.

INSTALL.md

@@ -1,36 +1,69 @@
 # Linux
 
-Linux dependencies. OSX users already have these after installing Xcode.
+Dependencies:
 
 	sudo apt-get install make gcc bison git python python-setuptools
+	sudo easy_install pip
 
+The assembler used is [**rgbds**](https://github.com/bentley/rgbds).
 
-Set up the **pokered** repository:
+	git clone git://github.com/bentley/rgbds.git
+	cd rgbds
+	sudo mkdir -p /usr/local/man/man{1,7}
+	sudo make install
+	cd ..
+	rm -rf rgbds
+
+Set up the repository.
 
 	git clone git://github.com/iimarckus/pokered.git
 	cd pokered
+	git submodule init
+	git submodule update
+	sudo pip install -r extras/requirements.txt
 
-	sudo ./init.sh
+To build **pokered.gbc** and **pokeblue.gbc**:
 
+	make
 
-Now **pokered.gbc** can be built from source.
+This should take about 10 seconds. Subsequent builds are faster.
+
+To build them individually:
 
 	make red
-
-This should take about 10-15 seconds. Subsequent builds are faster.
-
-
-To build **pokeblue.gbc**:
-
 	make blue
 
 
 # OS X
 
-Download and install **Xcode**. Then follow the Linux instructions.
+Download and install **Xcode**. Then open a terminal and follow the Linux instructions.
 
 
 # Windows
 
-Not yet.
+It's recommended that you use a virtual machine running Linux or OS X.
+
+If you insist on Windows, use [**Cygwin**](http://cygwin.com/install.html) (32-bit).
+
+Dependencies are downloaded in the installer rather than the command line.
+Select the following packages:
+* make
+* git
+* python
+* python-setuptools
+
+To install rgbds, extract the contents of **http://iimarck.us/etc/rgbds.zip** and put them in `C:\cygwin\usr\local\bin`.
+
+Then set up the repository. In the **Cygwin terminal**:
+
+	git clone git://github.com/iimarckus/pokered.git
+	cd pokered
+	git submodule init
+	git submodule update
+	sudo easy_install pip
+	sudo pip install -r extras/requirements.txt
+
+To build:
+
+	make