git clone https://github.com/mathfigure/dosbox

cd dosbox
./autogen.sh
./configure LIBS=-lrt
make

sudo make install

# run once and exit
src/dosbox
>exit

# find 'memsize' and change it
leafpad ~/.dosbox/dosbox-SVN.conf
>memsize=1

dosbox

hexedit /dev/shm/DOSBOX_RAM
ffplay /dev/shm/DOSBOX_RAM -f rawvideo -video_size 1024x1024 -pixel_format gray -framerate 25 -loop 0
gst-launch-1.0 multifilesrc location=/dev/shm/DOSBOX_RAM ! videoparse width=1024 height=1024 framerate=25 format=25 ! videoconvert dither=0 ! videoscale method=0 ! ximagesink