We can install SDCC and GPUTILS with the Synaptic Package Manager (in Gnome can be found in the upper panel: System/Administration/Synaptic Package Manager) or entering the following commands
<code>
  sudo apt-get install sdcc
  sudo apt-get install gputils
</code>

..now hold on we have to set the proper environmental variables.

...in your  "/etc/environment" file add these 3 lines below:

  MIOS_PATH="/YOUR/PATH/HERE/mios/trunk"
  MIOS_BIN_PATH="/YOUR/PATH/HERE/mios/trunk/bin"
  MIOS_SHELL="/bin/bash"

-- geez louise! it's that easy.