Java on ZX
ZXNet echo conference «code.zx»
Hello, valker
JVM for spec?
Two problems are immediately visible:
1) there is not enough memory. Java eats up your memory very much. how do you plan
implement swap?
2) brakes. I tried Java on my Ammy (50 mHz).... I'd rather not have it
tried it.
Is jit compilation planned? (if yes, then memory problems increase)
Hello, All
Just for fun.
There is an idea to implement a JVM for Speccy.
I start tomorrow.
Hello, valker
val> Just for fun.
val>
val> There is an idea to implement a JVM for Speccy.
val>
val> I start tomorrow.
software? What exactly do you want to implement?
Hello Sinus
Sin> JVM for spec?
Sin> I immediately see two problems:
Sin>
Sin> 1) there is not enough memory. Java eats up your memory very much. how do you plan
Sin> implement swap?
Sin>
Sin> 2) brakes. I tried Java on my Ammy (50 mHz).... I'd rather have it
Sin> have not tried.
Sin>
Sin> is jit compilation planned? (if yes, then there are memory problems
Sin> increase)
1. There will be a swap. On HDD. I haven't thought about the details yet.
2. Brakes... Well, I write “Just for fun” - i.e. at the first stage the goal is
the very possibility of launching. We'll figure out the speed later.
3. At the first stage - a bytecode interpreter. If everything goes well, then
Further options are possible: jit or compile on install.
Hello, valker
I am exploring the possibility of using the developments of other projects. Currently
I'm interested in two projects:
Waba [http://waba.sourceforge.net/],
and
KabaVM [http://www.geocities.co.jp/SiliconValley-PaloAlto/2038/].
The second project, unfortunately, is in some hieroglyphographic language.
Since there is a lot of code written in C, I will also
use this language. Naturally, not at the expense of performance. Workers
The compiler selected IAR for Z80.
Hello, valker
Well, if just for fun...
If there is a swap, then go ahead, I don’t see any obstacles.
there will be brakes ^_~
Hello Sinus
This is where the 20mhz accelerator comes in handy...
Hello, valker
I didn’t follow the link, but I already know what J2ME CLDC is by its name.
Do you just need some kind of Java (I don’t care what kind) purely for fun?
or do you want some normal application to launch?
what dots to put there ^_~
Hello Sinus
Sin> I didn’t follow the link, but I already know what J2ME CLDC is
Sin> name.
Sin>
Sin> do you just need some kind of Java (I don’t care which one) purely for fun?
Sin> or do you want some normal application to start?
Sin> there are dots to put ^_~
Is J2ME not normal Java?
“Putting dots” means drawing on the screen?
Hello, valker
val> Isn't J2ME normal Java?
val> “Putting points” means drawing on the screen?
J2ME - Java2 Micro Edition
Heavily stripped-down Java (not in terms of byte code, of course, but in terms of libraries)
Hello Sinus
Sin> J2ME - Java2 Micro Edition
Sin> Heavily stripped-down Java (not in terms of byte code, of course, but in terms of
Sin> libraries)
This, I think, is already known to everyone.
However, even what we have can be used on the Spectrum.
I think that the topic of libraries is not so interesting due to the current lack of
the VM itself.
Hello, valker
> I think that the topic of libraries is not so interesting due to the lack of
> present time of the VM itself
Well then. You are able to fix it (lack of VM in the sense) ;)
Hello Sinus
Sin> Are you still not satisfied with English and want to talk about it?
I just wanted to know the opinion of the author (or authors) about the direction of development.
Although my English is poor, I can read what is being said. But in my opinion,
if the development of any project goes beyond the scope of a “hobby” and begins
be ported throughout the “whole” world, the heroes must be known by sight..
This is the first thing. Secondly, it will be quite difficult for people like me to support the project
in English, since I can’t connect three words in English: v2_cry:
PS. In fact, it's all a flame. Knock the mesags if you think they are
littering the thread :mad:
ZZY. My deep respect to the authors of such a complex project! Good luck, I hope
Soon you will enjoy the fruits of your hard work!
Hello, valker
val> http://javaonzx.blogspot.com/
and where is our great and mighty Russian on the website? :mad:
Hello, do_se
Are you still not satisfied with English and want to talk about it? ;)
Hello, do_se
do_> I just wanted to know the opinion of the author (or authors) about the direction
do_> development. Although my English is bad, I can read what is being said
do_> is coming. But in my opinion, if the development of any project goes beyond
do_> "hobby" framework and will begin to be ported throughout the "whole" world, heroes should
do_> know by sight..
do_> This is the first thing. Secondly, it will be quite difficult for someone like me
do_> support the project in English, since I have three words in English
do_> I can’t connect: v2_cry:
do_>
do_> PS. In fact, it's all a flame. Kill mesags if you think that
do_> they clog up the thread :mad:
do_>
do_> ZZY. My deep respect to the authors of such a complex project! Good luck,
do_> I hope to soon enjoy the fruits of my hard work!
Russian version in this thread.
English - at http://javaonzx.blogspot.com/
So don't worry, news about the project is always available here.
Hello DreamZzz
Yes, and practically it can work out too, but it takes an excessive amount of time
time.
and especially since the author has not been heard for a long time.
Hello, valker
But it would be interesting to transfer J2ME CLDC 1.0 to speckies, without floating
points. First, try to launch small black and white games, and then see how
will do. They require little memory, and the resolution is also low. Theoretically
maybe something will even work out.