DISPATCH(NEXT_OP) {
    OP(no_op):
        goto NEXT;
    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;
}