Finding the right debugger

I am trying to find a debugger that supports breaking when a register changes it's value. More specifically I am trying to break the program whenever the overflow bit is set. This is for detecting integer calculations that result in overflow.

Does anyone know of any NT source level debugger than can allow this?

[Jerry Coffin]

I've never heard of one, and I can't quite imagine using it if there was one -- the carry flag gets set so often, you'd might about as well just single-step through the program, as that's about what you're going to end up doing anyway.

It would be fairly easy to implement a minimal debugger that did this under Win32, but I doubt you'd really want to...

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