diff --git a/.gitignore b/.gitignore
index be682f9..9facb65 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 build/
+toolchain/
 *.~lock*
\ No newline at end of file
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..830cd6c
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "riscv-gnu-toolchain"]
+	path = riscv-gnu-toolchain
+	url = https://github.com/riscv-collab/riscv-gnu-toolchain.git
diff --git a/README.md b/README.md
index 8981267..674df3b 100644
--- a/README.md
+++ b/README.md
@@ -17,3 +17,6 @@ Desired features:
 * division
 * instruction and data caches
 * JTAG debug probe
+
+## Installation
+Run `setup.sh` to install GCC
\ No newline at end of file
diff --git a/riscv-gnu-toolchain b/riscv-gnu-toolchain
new file mode 160000
index 0000000..96d9f40
--- /dev/null
+++ b/riscv-gnu-toolchain
@@ -0,0 +1 @@
+Subproject commit 96d9f40c9d5649089031c476cf37728013212288
diff --git a/setup.sh b/setup.sh
new file mode 100755
index 0000000..432a517
--- /dev/null
+++ b/setup.sh
@@ -0,0 +1,7 @@
+sudo apt-get install -y autoconf automake autotools-dev curl python3 libmpc-dev libmpfr-dev libgmp-dev gawk build-essential bison flex texinfo gperf libtool patchutils bc zlib1g-dev libexpat-dev
+
+SCRIPT=$(realpath "$0")
+SCRIPTPATH=$(dirname "$SCRIPT")
+cd $SCRIPTPATH/riscv-gnu-toolchain
+./configure --prefix=$SCRIPTPATH/toolchain/riscv --enable-multilib
+make
\ No newline at end of file