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.

checksum_final_add_fletcher.exe OSTC4_firmware_upload.bin OSTC4_FONT_upload.bin OSTC4_RTE_upload.bin