Re: question on java lang spec chapter 3.3 (unicode char lexing)
On 1/2/2013 8:55 PM, Aryeh M. Friedman wrote:
On Wednesday, January 2, 2013 8:42:57 PM UTC-5, Lew wrote:
On Wednesday, January 2, 2013 5:27:21 PM UTC-8, Aryeh M. Friedman
A long term personal project of mine is to write a OS completely
from the ground up in a super set of Java (the only addition I
see that is needed is some type of "safe" pointer type)... in
this case safe being defined as you can assign a literal address
to it but your not allowed to do ptr math on it
Also known as "a JVM"?
As far I know the JVM can not be directly booted (as in if I turn on
my PC it can not boot into the JVM)...
The JVM was not created for writing OS'es but for writing
applications so that is correct.
neither for performance
reasons does it make sense to run a VM at the bottom layer...
Performance should not be a problem.
an
other reason is there is a lot of junk in the JRE (like how do you do
garbage collection if you do not have some way of the OS allocating
mem to a process in the first place)
Again. Java was designed to write applications not OS'es.
The "junk" you are talking about is what makes it useful
for the big majority.
Arne
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