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How come, in nintendulator, in the "cpu trace" window it sometimes gets stuck in a loop. i try to get to #0000 but it will stall on like #0a00 and loop back up to #0b00 and continue this over and over again; never reaching the destination. I use home and end keys first, then page up and page down, then arrow up and arrow down keys to arrive at #0000. But, somtimes it never makes it to #0000. What am i doing wrong? This has been happening a lot.

It's a bug of some sort in the trace window which originates from Akilla's debugger code which I never got around to completely rewriting. If you get stuck like that, all I can recommend is trying to scroll in from the opposite direction (i.e. in this case, start at F000 and scroll down until you reach 0000 - it wraps around).

Thank You, that helps a lot.