110736 DV: Virtual Device Handler for RT-11 Version: January 1987 Submitted by: R. Tapp, University of Victoria, Victoria, B.C., Canada V8W 2Y2 Operating System: RT-11 V4.00 or 5.01 Source Language: MACRO-11 Memory Required: 32KB Software Required: Includes a companion server program for a VAX/VMS version 4.4 host with both .PAS PASCAL version 3.4 and .OBJ files, but this must be customized for other host operating systems. Keywords: Data Communications, Device Handlers Abstract: A patch for the RT-11 file DD.MAC creates the source file for a new device handler DV that can access virtual devices on a host computer using a standard serial terminal line. These virtual devices can be used either for file communication with the host system or as backup storage for RT-11 files. Included are an RT-11 terminal emulator program for establishing communication with the host system, a stand-alone bootstrap loader program for DV, and a set of server programs for a VAX/VMS host that support virtual devices compatible with the VMS EXCHANGE utility and emulate TU58, RK05, RL01, RX01 and RX02 devices. Notes: Supplied patches require RT-11 version 4.00 or 5.01 source files. Other versions may not be compatible. Changes and Improvements: Runs under RT-11 version 5.01 as well as version 4.00. Problem with RT-11 extended memory code has been fixed. Media (Service Charge Code): User's Manual (EA), One RX01 Diskette (KA) Format: RT-11, 600' Magnetic Tape (MA) Format: RT-11