This is something that might be a good candidate for openjdk and/or icedtea. The only problem is the build seems to be regularly broken in the repository. It would be really interesting to have a few research forks with various improvements to primitives.
On Tue, Nov 17, 2009 at 11:55 PM, Charles Oliver Nutter <[email protected]> wrote: > On Tue, Nov 17, 2009 at 11:37 AM, <[email protected]> wrote: >> One old fixnum solution proposed by Per Bothner many years ago >> (he is on this mailing list so he might know the PDF he wrote I am referring >> to?) >> Whenever I read something,my mind often over paraphrases things >> (even makes up it's own version!) but I walked away with this >> >> The primitive types that the JVM feels the need to box. Int/float/byte etc >> >> All could be put into a "TAGGED" structure. This means >> >> (jobject && BYTE_TAG) >> TAG_LSR_BYTE == jbyte value >> (jobject && INT_TAG) >> TAG_LSR_INT == jint value > > Yes, this sounds like a typical "tagged pointer" way of representing > numerics as pseudo-references. John Rose also posted about Fixnums in > the JVM here: > > http://blogs.sun.com/jrose/entry/fixnums_in_the_vm > > As I understand it from talking to John and others, it would not be > particularly "difficult" to get fixnums into the JVM, but there's > nobody working on it at present. We have folks doing dynamic > invocation, interface injection, tail calls, continuations/coroutines > and more...but no fixnums yet. > > - Charlie > > -- > > You received this message because you are subscribed to the Google Groups > "JVM Languages" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/jvm-languages?hl=. > > > -- You received this message because you are subscribed to the Google Groups "JVM Languages" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/jvm-languages?hl=.
