Invoke Yoda the debugger. This command restarts the SoftPC, the same as pressing Control-Alt(Option)-Delete. PC programs can’t warn you to save before resetting. - This command lets you set where the data sent to the COM1: & COM2: ports goes — to serial ports or files on the Mac disk. Note: if either COM1: or COM2: is using the Modem port, then the SlavePC option cannot be used. - This command switches between a white-on-black display (standard) and a black-on-white display. It is available only when your Mac is in 2 Color mode. This command turns the sounds generated by PC programs on or off. (To set the volume, use the Control Panel in your  menu.) This command uses the Macintosh’s mouse to emulate a PC mouse, for those PC programs which recognize a mouse.