Bugfix screen clipping (Flipdisplay mode): part of characters may be truncated in case they do not fit on the screen. The truncation was not working for flip mode causing some black areas e.g. in the simulator menu. The code does now consider the inversed boundaries of the screen in case flip mode is active.

Heinrichs Weikamp OSTC4 update files.

The builds are for testing purposes only. Be careful, they might not work and are definitely not recommended for real dives.