Can you scrub Stella timeline with inputs recorded?

[quohog]

I'm scrubbing back and forth in time with Stella, trying to find a very rare, hard to reproduce bug. 

A bug that only happens if I hit the right input on the right frame, and I'm trying to find out what that is.

Ah ha! I finally get my bug to appear! So I break into the debugger and step back through time until I see the frame before the bug appears. But then when I step forward the bug never appears because as I step through I'm not hitting any inputs, let alone the right input on the right frame.

So is there a way I can step backwards and forwards in Stella and have it re-enter the same button presses, etc. on the same frame? Like an input recording option?

 

Or, whenever any of you are faced with a hard-to-repro bug like this, do you have another method of attack, if input recording is impossible?

 

Any tips appreciated! Thanks!

[Thomas Jentzsch]

Stella has no input recording. But you can use `savestateif` to save an extra state whenever you want (e.g. when a certain input happens).