Is there a way to run plain c code on top of the JVM?
Not connect via JNI, running, like you can run ruby code via JRuby, or javascript via Rhino.
If there is no current solution, what would you recommend I should do?
Obviously I want to use as many partials solutions as I can to make it happen.
ANTLR seems like a good place to start, having a full "ANSI C" grammar implementation...
should I build a "toy" VM over the JVM using ANTLR generated code?
Updated 2012-01-26: According to this page on the company's site the product has been bought out and is no longer available.
Yes.