4 ms·
So it sounds like security related flags need to be more than a single bit, and should probably be stored in different variables
by dec0dedab0de 5y ago
So it sounds like security related flags need to be more than a single bit, and should probably be stored in different variables
- hedora 5y agoI imagine the silent downvotes are because that’s trying to solve the problem at the wrong layer. For your suggestion to work, you’d need to also duplicate the logic that checks the redundant bits, etc, etc. If you really want to do this, you end up doing what satellites do to deal with cosmic rays: Ship three identical computers. If state diverges, majority rules. See page 9 (Radiation-Effects Mitigation and Hardness) for an FPGA example: https://www.xilinx.com/support/documentation/white_papers/wp523-xqrku060.pdf https://www.xilinx.com/support/documentation/white_papers/wp...