Platform Support
The following platforms are/will eventually be supported:

Platform	Status
Intel 386, Windows 9x/ME/NT/2K/XP	1.10
Intel 386, Linux	1.10
Intel 386, Cygwin	1.06 Alpha (1.10 shipping soon)
Acorn Archimedes/RISC PC, RISCOS	1.10
Psion Series 5, EPOC32	Under development
EPOC32 Release 5 (Emulator)	1.10 (Source only)
EPOC32 Release 6 (Emulator)	1.10 (Source only)
Intel x86, MS-DOS	0.16 Alpha
Psion Series 3x, SIBO	0.16 Alpha
3Com Palm Pilot, PalmOS	Port under negotiation

Virtual Instruction Set
The following virtual instructions (by category) have been implemented (see instruction set page for more details):

Description	Number	Implemented	Windows %	EPOC16 %
Integer ops	57	57	100%	78.1%
Floating point ops	41	41	100%	0%
Objref ops	11	11	100%	100%
Array ops	16	16	100%	23.1%
Stack ops	9	9	100%	33.3%
Type conversion ops	15	15	100%	16.7%
Branch ops	29	29	100%	65.4%
Method/Field ops	8	8	100%	87.5%
Other	12	12	100%	41.7%
Total	201	201	100%	61.54%

Note: SIBO V0.16 excludes long, float and double instructions, as these cannot easily be supported on the SIBO platform.

Native Methods
The following JDK 1.1 native methods (by containing package) have been implemented:

Package name	Native methods	Implemented	Percentage	Library name
java.awt	1	0	0.0%	also sun.* in winawt
java.io	52	33	63.5%
java.lang	99	42	42.4%
java.lang.reflect	44	0	0.0%
java.math	12	0	0.0%
java.net	27	0	0.0%	net
java.util	1	0	0.0%
java.util.zip	20	0	0.0%	zip
Total	256	75	29.3%

Exceptions
The following exceptions types can be raised by the VM:

Description	Supported
Java Exceptions	All
Exceptions raised by VM	InternalError, NullPointerException, ArrayIndexOutOfBoundsException, ArithmeticException, ClassCastException, ClassFormatError, NoSuchFieldError, NoSuchMethodError, ClassNotFoundException, VerifyError, NoClassDefFoundError, IOException
Exceptions not yet raised by VM	IllegalAccessError

JNI
Partially implemented. JNI method signatures are used throughout, but the loading of DLLs is not supported.

AWT and Swing
Not implemented.

Garbage Collection
Not implemented. Allocated objects are recorded in a list, which is freed on exit.(list is dumped in verbose mode).

Threads
Not implemented. Alpha version is restricted to single thread only - one or two native methods are implemented.

JIT
Not implemented.

If you have any comments, suggestions, offers of help, or cash donations, please email me at javavm at tsac.co.uk