OP_UNM           3498 host/minilua.c case OP_UNM:r=luai_numunm(v1);break;
OP_UNM           3510 host/minilua.c int o2=(op!=OP_UNM&&op!=OP_LEN)?luaK_exp2RK(fs,e2):0;
OP_UNM           3545 host/minilua.c codearith(fs,OP_UNM,e,&e2);
OP_UNM           5048 host/minilua.c case OP_UNM:{