hello martin,

i feel privileged to talk to the creator of the JOP...

i don't think anybody can explain me about the design of a java
processor better than you...

will 2 months be enough for this work?? can u just tell me how to get
started? is vhdl the only thing in which i will be writing code??

i want a very simple processor with no complex features like threading,
garbage collection etc., a simple decoder to execute a subset of the
bytecode....what should be my very first step?

thanx...

(hope u can take some time out to reply to this mail)...
---this is my final year project and i need to submit it before april---

thank you ;-)



I don't think so. It depends on your previous knowledge and how
much you want to implement. If you have already done a simple processor
and you only want to execute a few bytecodes that are 'fixed' in
an on-chip RAM it *could* be possible. That's the way I started...



You need some way to load your Java application. The minimum is
to get out the bytecodes from a single method and put it into
the FPGA memory (see above). Perhaps you can use some tools from
JOP for this task.



Implement the execution unit, in the case of a Java processor
a stack machine.

wish you luck and some fun with your Java processor,

Martin

hi martin...

i have never designed any kind of processor and yes...i want to keep
this jvm processor simple by implementing "fixed" set of bytecodes
present in on-chip ram...

i went through the JOP code, but it is rather complex for me to
comprehend...moreover, it has all the features of a JVM which i don't
need...

is it possible for u to mail me exactly what i need? a simple processor
that can execute a minimal subset of bytecode, that can load the class
files and extract bytecodes out of the methods...

btw...do i have to learn java to get this done?

thanx...

Hi --

I would be happy to e-mail you exactly what you need, according to
your specifications. First, however, you need to supply me with a
cashiers check for US$15,000.00. Once your check clears I will e-mail
you a tarball with your code [1]. Please contact me off list to make
payment arrangements.

Stuart

[1] I forgot if you wanted RTL in Verilog, VHDL, or preferred a
higher-level design language. Please send me a detailed written spec
along with your cashiers check.