JEMU is an Open
Source Java Application designed to emulate various computer systems,
with the ability to run as an Applet within a browser.
The JEMU architecture
is based on CPU and Device classes, allowing individual devices to be
encapsulated in Java classes for re-use in other systems (e.g. a 6845
CRTC controller is used in both the BBC Model B and the Amstrad CPC).
Lots of new stuff in this version, including more accurate BBC cursor emulation,
** NEW ** ZX Spectrum emulation (not extremely accurate yet, but good enough
for a few games to work). Improved VZ-200 and VZ-300 renderer with enough
accuracy to handle split screen accurately. New source also available from the
downloads section. Have fun!!
Just 4 years since I did any updates. I've had a few new things in
the pipeline, just waiting for an excuse to get them done. So here
it is, the latest version, now with decent sound, better emulation
for both the VZ and the CPC, and now emulation of the BBC Model B
and Sinclair ZX80/81. There's still a glitch or two in the monitor
emulation for the ZX80/81, visible in the supplied Space Invaders,
but I think that's probably down to timing on the ZX interrupts or
something. Still some keyboard bugs to iron out for the BBC in
order to get Elite and Rocket Raid working properly, but Revs works
perfectly, except for the cursor.. Does this show in the real game?
On another note, the new source is available for download, and
this page should now work on either IE or Firefox, so long as you
have Java 1.4 or above installed.
||Ok, finally got the
CPC emulation up and running. I haven't done the AY (sound chip)
emulation yet, just the IO ports for the CPC keyboard, that's
why there's no sound with the CPC emulation. The home page (this
Computers and Games from the Applet itself. I think I've got the
tested it with Netscape 6. Latest source is also available for
download. Have fun.
||Sound output should
now be working on the VZ emulation. Also added the Computer and
Game selection boxes above. To run a game, press
"Reset", select a game, then you may have to type RUN.
||The full web site is
now up and running with the latest version of the emulator
Applet on this page, and the latest source code available for
download. The first computer to be emulated is the Dick Smith
VZ-200 or VZ-300. This was my first computer, and is a Z80 based
computer developed by Video Technologies. Double-click for the