I'm wondering if someone could clear up for me whether a Dalvik port
to ThumbEE would be of any benefit, especially when it comes to
startup application performance, before the JIT kicks in.
I am writing to get more informed opinions about ThumbEE / Jazelle RCT
port of Dalvik. Any thoughts? I got the idea from reading the
"Dalvik Porting" guide  and the ARM Cortex A8 documentation ,
. The documented instructions do some seemingly useful things :
New features provided by ThumbEE include automatic null pointer checks
on every load and store instruction, an instruction to perform an
array bounds check, access to registers r8-r15 (where the Jazelle/DBX
Java VM state is held), and special instructions that call a handler.
 Handlers are small sections of frequently called code, commonly
used to implement a feature of a high level language, such as
allocating memory for a new object. These changes come from
repurposing a handful of opcodes, and knowing the core is in the new
Apparently, using/licensing Jazelle from ARM used to be a PITA, but I
get the impression ARM has learned from its mistakes and now the next-
gen Jazelle, Jazelle RCT / ThumbEE, is documented  and can be used
I get the impression that the Snapdragon / ARM chips in the Morotola
DROID and Nexus One have Jazelle RCT support, so they could really
benefit from ThumbEE instructions.
Thoughts, comments, feedback, rebuttals, etc. would all be greatly