Re: What devices will run Java bytecode?

Boudewijn Dijkstra wrote:
"Correlious" <arvinf@xxxxxxxxx> schreef in bericht news:1122517982.298525.26370@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Sun used to make a Java chip. I don't know what happened to that.


ARM now has Jazelle, which defines a Java-compatible instruction set and allows for a Java co-processor.

I'm curious, does anybody know how much additional cost overhead is involved with this combination (Jazelle and a Java co-processor) over a comparable PIC or Atmel AVR processor, which wasn't designed to work with Java?

A friend of mine is a desktop developer and often argues that development time is dramatically reduced by programming in interpreted languages, such as Java because developers don't have to worry about memory leaks, buffer overflows, etc. In the embedded systems world, however, I can easily fathom a situation where cost of manufacturing would eventually outweigh the costs saved by programming in Java.

For example, let's say that it costs a company $20,000 to develop the software for some embedded system project in Java and $100 per device to manufacture this product with some kind of Java co-processor included. If we were to sell 20,000 units in the first year, we would be up to $2,020,000 in costs, which includes the cost of developing the software and manufacturing of each device. Now lets say that it takes double the money to develop the code for the same product in a combination of C and Assembly. So that's $40,000 to develop the code; but, we no longer require the Java co-processor, so our product (in this fictional example) costs only $50 to manufacture each unit. Again, we sell 20,000 units of our product. In this example, our overhead for the first year is $1,040,000, which is a little more than half that of the original product that we developed in Java.

I'm not trying to start a language war here or anything. I would just like to know how close to a real world situation my example actually is.

Thank you,

--
Sean
.

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