Upgrading your RPi to a Commodore 64 experience is the best upgrade you can get.
Getting down to business
Prior to installing VICE on your Jessie distribution of Raspbian you need to alter the sources list.
sudo nano /etc/apt/sources.list
# Add the following lines on the end of the file
deb http://ftp.nl.debian.org/debian/ jessie main contrib
Execute the following commands to completely install VICE including the ROM files.
Run the source update
Install VICE from the newly added source
apt-get install vice
Fetch, unpack and copy ROM files
tar -xvzf vice-1.5-roms.tar.gz
sudo cp -a vice-1.5-roms/data/* /usr/lib/vice/
Enjoy the sleepless nights…