Ok, so I had an idea and it made me do a TAS again after what, 2 years? It turns out the idea can't work and I think I've found something.
The idea was to TAS the atari game inside the Genesis or SNES version of Pitfall the Mayan Adventure. Since we don't have re-recording atari emulators, and I tried to beat this game on the atari the other day, I was wondering what the fastest time would be.
So I started optimizing it even before making a test route (why would I need a test route? The best path is known...).
So I've optimized more than half of the run, and decided to finish the rest unoptimized just to see if it all worked. And I couldn't beat the game. Using emulator tools, and more than half of the run was optmized. The timer reached zero before I could get close to the end.
So I compared my movie to a speedrun on youtube, played on the atari. Playing both side by side it became clear that there was something weird in the timing. The vines swing at a different speed and starting at a different position when they appear on screen. Same goes for the lake and crocodiles. I then tried the SNES version of the atari game and the same problem persists. I then tried all the atari versions on stella and they are very different.
There was also another difference, a weird one: the rolling logs don't make harry stop moving on the mayan adventure version. I tried moving all the switches on the atari to see if there was a combination that made it possible also on the atari, but they always make harry stop while touching it.
I don't know what version of the game they ported to mayan adventure, but as far as I know, it is
unbeatable, and I haven't found this information anywhere.
I'll have to wait some more for an atari 2600 TAS : /
here's my wip, half of it is optimized:
http://dl.dropbox.com/u/26330550/Pitfall_wip_foda.zip