DISPATCH(NEXT_OP) {
            OP(no_op):
                goto NEXT;
            OP(const_i8):
            OP(const_i16):
            OP(const_i32):
                MVM_exception_throw_adhoc(tc, "const_iX NYI");
            OP(const_i64):
                GET_REG(cur_op, 0).i64 = MVM_BC_get_I64(cur_op, 2);
                cur_op += 10;
                goto NEXT;
            OP(pushcompsc): {    
                MVMObject * const sc  = GET_REG(cur_op, 0).o;
                if (REPR(sc)->ID != MVM_REPR_ID_SCRef)
                    MVM_exception_throw_adhoc(tc, "Can only push an SCRef with pushcompsc");
                if (MVM_is_null(tc, tc->compiling_scs)) {
                    MVMROOT(tc, sc, {
                        tc->compiling_scs = MVM_repr_alloc_init(tc, tc->instance->boot_types.BOOTArray);
                    });  
                }    
                MVM_repr_unshift_o(tc, tc->compiling_scs, sc); 
                cur_op += 2;
                goto NEXT;
            }    
        }