In order to plug FPGAmstrad on TV, and help debugging. And also to test a simple scan-doubler.
r005c17 : experimental version, original signal TV output is running fine, with OSD menu. Have to add a flag in mist.ini instead of using OSD menu.
scan-doubler doesn't run ok in mode 2, and has strange offset with Arkanoid (vertical display games), so it unvalidated : only original TV output will be added to r004 in r005.
==== TODO : A SCART output with border ====
Original output signal has no border, I have to implement the original border in TV mode.
=== TODO : CRTC0 ===