XTM is a software emulation of a classic PC/XT computer for the Symbian operating system. Within this standard application for your Nokia communicator, you can run any software which would run on a low-end PC clone from the 1980's.
XTM also provides a platform for writing new software. It offers a simple alternative to writing for the Symbian operating system - you can use Pascal, BASIC, or any other tool you are familiar with.
XTM provides the following capabilities:
- Full 80186 instruction set with 8087 math coprocessor.
- MCGA display emulation with all text modes and graphics modes at 320 x 200 and 640 x 200 resolutions.
- Native code BIOS for improved performance.
- Native code support for HP 200LX graphics interface (Int 5Fh).
- Full access to Communicator file system (internal memory and memory card)
- Access to serial ports as COM1 and COM2 (both cable and infrared)
- PC keyboard mapping including 12 function keys implemented as screen buttons. UK, US, French and German keyboards supported.
XTM works really great and the emulation is very good. The emulator requires some preparation in order to run. First of all, you have to create a boot diskette image. The easiest way to do this is to use any MS-DOS (or other DOS: DR-DOS, Caldera etc) boot disk, which contains the DOS system files. You can check if it works by trying to boot your PC. Then copy two files (EPOCFS.SYS and EREDIR.EXE) from installation archive to your diskette and create CONFIG.SYS file with only one line:
This will provide you with access to your Communicator D: drive (memory card) where you can store DOS programs to be run in the emulator. Finally, use MAKEDISK.EXE to create your boot disk image by typing:
(if your original boot disk is in A: drive of your PC). Copy the resulting file to D:\XTM\ folder in your Communicator and start the emulator. That's all.
XTM is not only a DOS emulator. You can use it to run LINUX on your Nokia 9210! You will need a small ("pocket") distribution that runs on 80186 CPU like ELKS (Embeddable Linux Kernel System). Boot disk images can be downloaded from http://elks.sourceforge.net/download/.
Hundreds (if not thousands) free DOS applications can be downloaded from http://www.simtel.net/pub/msdos/ and many other sites.