Selecting a computer
Settings include Atari model, RAM size, operating system and PAL/NTSC. F1 opens the menu in the SDL version. The -help option lists command-line switches; availability depends on the emulator build.
Files and save states
A save state preserves the entire session, including memory and the running program. To move a program to an Atari or another emulator, save it in its normal format, such as BAS or XEX. An ATR image transfers a whole disk, including its directory and files.