I'm using Delphi 11. Sometimes an exception happens, and instead of Delphi going to the unit that threw the exception, it goes to this CPU screen, and I don't know what to do with it.

What can I do in such situations ?

CodePudding user response：

This kind of screen typically means there is no code located at the memory address where the CPU tried to execute code from. Which most likely means that a class method was called on an object via an invalid but not nil pointer, or a function was called via a similarly invalid function pointer.

You won't be able to debug the location where the exception was raised from, since it is an invalid memory address to begin with. But you should still have access to the Call Stack trace of function calls that led up to the exception. So, just walk back through the Call Stack until you reenter valid code, and then debug from there to find the invalid pointer.

CodePudding user response：

There might be better answers but I think you might look at EurekaLog or madExcept. Either works great. Never quite understood why this is not built-in to Delphi.