sdl2trs64.exe -rom speedm.rom tcs -doubler both -disk0 speedm.dmk -speedup tcs
:: CP/M2.2 Speedmaster
:: https://forum.classic-computing.de/forum/index.php?thread/24322-sdltrs-emulator-genie-i-ii-iii-lnw80-speedmaster/&postID=305131#post305131