You can now get xtrs version 4.5, a Radio Shack TRS-80 Model I/III/4/4P
emulator for Unix and the X Window System, from my TRS-80 Web pages:
http://www.tim-mann.org/xtrs.html
Version 4.5 adds emulation of the remaining undocumented Z-80 instructions,
along with several other small improvements. See the included ChangeLog
for details. This may be the final version, since I'm running out of
ideas (and documentation) for TRS-80 peripherals to emulate.
General xtrs blurb:
xtrs is a Radio Shack TRS-80 Model I/III/4/4P emulator for Unix and the
X Window System. It includes lower case, the real time clock, hi-res
graphics, serial port, parallel printer, mouse, cassette, sound and music
output (requires OSS), 5" and 8" floppy disk drives in single and double
density, and even hard disk drives. The emulated floppy and hard disk
file formats are compatible with the popular MSDOS-based emulators by
Jeff Vavasour, Matthew Reed, and David Keil, and (if you choose a capable
enough file format), all features of the original TRS-80 floppy disk
controller are emulated. Under Linux, physical floppy disk drives are
also supported. Physical cassettes can be read and written too. The
user interface is a bit spartan, but it gets the job done.
Tim Mann tim.mann(a)compaq.com
http://www.tim-mann.org
Compaq Computer Corporation, Systems Research Center, Palo Alto, CA