Dan Smith, Bjorn, Dan H, Remi - Does it work for you if we change the JVMS to use the following value-type byte codes - i.e. make them contiguous? In the hotspot implementation, we ran out of internally-usable byte codes when we left holes here.
_vload = 203, // 0xcb 248 _vstore = 204, // 0xcc 249 _vaload = 205, // 0xcd 250 _vastore = 206, // 0xce 251 _vreturn = 207, // 0xcf 252 _vdefault = 208, // 0xd0 253 _vwithfield = 209, // 0xd1 254 _vbox = 210, // 0xd2 255 _vunbox = 211, // 0xd3 (note: we removed vgetfield) thanks, Karen