If you want really secure computing, build a system that consists of a grid of 4x4 bit Look up tables, hook them in a grid so that each has 4 inputs and outputs : up,left,down,right
Clock them in a checkerboard pattern to eliminate race conditions
A B A B A B A B
B A B A B A B A
A B A B A B A B
B A B A B A B A
The logic will just work, there's no program counters, etc. You can flip, rotate, split, fold logic to work around bad gates, you can isolate an input or output by wrapping it in a fence of logic.
However, you give up everything you're used to inheriting from Von Neuman in the process.
Clock them in a checkerboard pattern to eliminate race conditions
The logic will just work, there's no program counters, etc. You can flip, rotate, split, fold logic to work around bad gates, you can isolate an input or output by wrapping it in a fence of logic.However, you give up everything you're used to inheriting from Von Neuman in the process.