From 1fdde4d0ce2adcf7e1ac07631a7ce651b8da75da Mon Sep 17 00:00:00 2001
From: Gregor Kleen <gkleen@yggdrasil.li>
Date: Wed, 28 Oct 2015 15:56:28 +0100
Subject: MARS (MIPS Assembler and Runtime Simulator)

---
 mars.nix  | 20 ++++++++++++++++++++
 shell.nix |  5 ++++-
 2 files changed, 24 insertions(+), 1 deletion(-)
 create mode 100644 mars.nix

diff --git a/mars.nix b/mars.nix
new file mode 100644
index 0000000..6e55997
--- /dev/null
+++ b/mars.nix
@@ -0,0 +1,20 @@
+{ stdenv
+, fetchurl
+, makeWrapper
+, jre
+}:
+
+stdenv.mkDerivation rec {
+  name = "mars-${version}";
+  version = "4.5";
+  src = fetchurl {
+    url = "http://courses.missouristate.edu/KenVollmar/mars/MARS_4_5_Aug2014/Mars4_5.jar";
+    sha256 = "15kh1fahkkbbf4wvb6ijzny4fi5dh4pycxyzp5325dm2ddkhnd5c";
+  };
+  phases = "installPhase";
+  buildInputs = [ makeWrapper ];
+  installPhase = ''
+    mkdir -p $out/bin
+    makeWrapper "${jre}/bin/java -jar ${src}" $out/bin/mars
+  '';
+}
diff --git a/shell.nix b/shell.nix
index f8300e7..5f837d3 100644
--- a/shell.nix
+++ b/shell.nix
@@ -1,11 +1,14 @@
 { pkgs ? (import <nixpkgs> {})
 }:
 
-pkgs.stdenv.mkDerivation {
+let
+  mars = pkgs.callPackage ./mars.nix {};
+in pkgs.stdenv.mkDerivation {
   name = "uni-env";
   buildInputs = [ pkgs.haskellPackages.pandoc
                   pkgs.gup
                   pkgs.jdk
                   pkgs.zip
+                  mars
                 ];
 }
-- 
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