Tom Rodriguez wrote:

set_entry_point is only ever used with the tos states of bytecode  
templates in templateTable.cpp and none of those use the subword tos  
states like btos,ctos and stos.  Those are all smeared into itos:

   def(Bytecodes::_i2c                 , ____|____|____|____, itos,  
itos, convert             ,  _ )

The subword types don't really exist in the representation of the  
stack and locals.  Probably btos,ctos and stos could be converted into  
ShouldNotReachHere in the switch below.

tom