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+# RGBDS
+
+RGBDS (Rednex Game Boy Development System) is a free assembler/linker package
+for the Game Boy and Game Boy Color. It consists of:
+
+  - rgbasm  (assembler)
+  - rgblink (linker)
+  - rgbfix  (checksum/header fixer)
+  - rgbgfx  (PNG‐to‐Game Boy graphics converter)
+
+rgbds-linux is a fork of the original RGBDS which aims to make the programs
+more like other UNIX tools.
+
+
+## Installing RGBDS (UNIX)
+
+RGBDS requires libpng and pkg-config to be installed.
+
+On Mac OS X, install them with [Homebrew](http://brew.sh/). On other Unixes,
+use the built-in package manager.
+
+You can test if they're installed by running `pkg-config --cflags libpng`:
+if the output is a path, then you're good, and if it outputs an error then
+you need to install them via a package manager.
+
+To build the programs on a UNIX or UNIX-like system, just run in your terminal:
+
+```sh
+make
+```
+
+Then to install the compiled programs and manual pages, run (with appropriate
+privileges):
+
+```sh
+make install
+```
+
+After installation, you can read the manuals with the man(1) command. E.g.,
+
+```sh
+man 1 rgbasm
+```
+
+Note: the variables described below can affect installation behavior when given
+on the make command line. For example, to install rgbds in your home directory
+instead of systemwide, run the following:
+
+```sh
+mkdir -p $HOME/{bin,man/man1,man/man7}
+make install PREFIX=$HOME
+```
+
+`PREFIX`: Location where RGBDS will be installed. Defaults to /usr/local.
+
+`BINPREFIX`: Location where the RGBDS programs will be installed. Defaults
+to ${PREFIX}/bin.
+
+`MANPREFIX`: Location where the RGBDS man pages will be installed. Defaults
+to ${PREFIX}/man.
+
+`Q`: Whether to quiet the build or not. To make the build more verbose, clear
+this variable. Defaults to @.
+
+
+## Installing RGBDS (Windows)
+
+Windows builds are available here: https://github.com/bentley/rgbds/releases
+
+Copy the .exe files to C:\Windows\ or similar.