start maintaining the current frame in the thread
implement pushFrame popFrame
cleanup popFrame path
remove some dead code
rename newFrame -> pushFrame
don't export JavaException from Native
remove some dead code
start turning interpreter into a switch statement
remove some dead code
move more opcodes into invoke
move more opcodes into invoke
move more opcodes into invoke
move add, sub, mul into invoke
yep, more opcodes moving
move more stuff
move more opcodes
a bit of cleanup
sort bytecodes better
move the rest of the unary ops
move array opcodes, fix anewarray