diff --git a/demos/vdu/Chars b/demos/vdu/Chars
new file mode 100644
index 0000000..6d5e766
Binary files /dev/null and b/demos/vdu/Chars differ
diff --git a/demos/vdu/ColourGrid b/demos/vdu/ColourGrid
new file mode 100644
index 0000000..b8a53ab
Binary files /dev/null and b/demos/vdu/ColourGrid differ
diff --git a/demos/vdu/Colours b/demos/vdu/Colours
new file mode 100644
index 0000000..b804865
Binary files /dev/null and b/demos/vdu/Colours differ
diff --git a/demos/vdu/Cursor b/demos/vdu/Cursor
new file mode 100644
index 0000000..66dbe95
Binary files /dev/null and b/demos/vdu/Cursor differ
diff --git a/demos/vdu/MODEs b/demos/vdu/MODEs
new file mode 100644
index 0000000..db024eb
Binary files /dev/null and b/demos/vdu/MODEs differ
diff --git a/demos/vdu/Palette b/demos/vdu/Palette
new file mode 100644
index 0000000..bd26c1a
Binary files /dev/null and b/demos/vdu/Palette differ
diff --git a/demos/vdu/TextSize b/demos/vdu/TextSize
new file mode 100644
index 0000000..a9a3600
Binary files /dev/null and b/demos/vdu/TextSize differ
diff --git a/demos/vdu/VDUVars b/demos/vdu/VDUVars
new file mode 100644
index 0000000..148034b
Binary files /dev/null and b/demos/vdu/VDUVars differ