41 lines
1.8 KiB
Plaintext
41 lines
1.8 KiB
Plaintext
KAFFE v0.5p1 - A JIT and interpreting virtual machine to run Java(tm)* code
|
|
===========================================================================
|
|
|
|
This is Kaffe, a virtual machine design to execute Java bytecode.
|
|
This machine can be configured in two modes. In one mode it operates as
|
|
a pure bytecode interpreter (not unlike Javasoft's machine); in the second
|
|
mode if performs "just-in-time" code conversion from the abstract code to
|
|
the host machine's native code. This will ultimately allow execution of
|
|
Java code at the same speed as standard compiled code but while maintaining
|
|
the advantages and flexibility of code independence.
|
|
|
|
This release include the new JIT system. Currently only a 386 JIT exists but
|
|
I intend to produce a SPARC jit machine in the near future to test is
|
|
portablility and then concentrate on improving the generated code quality.
|
|
However, these improvements will not effect the JIT target descriptions
|
|
(the jit-???.def files) so people may want to consider producing versions
|
|
for other platforms.
|
|
|
|
Running Kaffe
|
|
=============
|
|
|
|
This version of Kaffe is not supplied with a copy of Sun's class library.
|
|
FreeBSD users can install the jdk port/package for it.
|
|
|
|
Before running Kaffe it is necessary to configure the environment.
|
|
This requires the setting of CLASSPATH, KAFFEHOME and LD_LIBRARY_PATH.
|
|
For the standard installation these would be defined as follows:
|
|
|
|
CLASSPATH=.:/usr/local/share/kaffe/classes.zip
|
|
KAFFEHOME=/usr/local/share/kaffe
|
|
LD_LIBRARY_PATH=/usr/lib:/usr/local/lib
|
|
|
|
A file "ENVIRONMENT" is generated by the configure program which contains
|
|
a /bin/sh environment setup. This may help you to figure out what to
|
|
set to what if you alter the standard installation point.
|
|
|
|
Tim Wilkinson
|
|
<tim@sarc.city.ac.uk>
|
|
----
|
|
* Java and Javasoft are registered trademark of Sun Microsystems, Inc.
|