TheHoboInYourRoom

The sequence is actually a bit weirder than this. I ran the test again cold, within a couple seconds of turning on the Atari. At first both halves of the test, the 1- and 7-bit stuffing, fail on the same bit (D6). Within a minute the 1-bit stuffs to PF1 correct themselves (possibly top to bottom, but I don't know since I can only see one row correcting) and only some minutes later did the 7-bit stuffs to PF2 correct as I previously described. It's pretty sensitive to room temperature, it seems.

9800 I've never been very fond of this game.

It's definitely temperature-related in my case. If I run the latest test after playing a game, it works. The glitch has only happened when the Atari is cold.

ROLLAGE - 999,999 I found the game's rhythm. Small bonus: Military attack helicopter from Shin Godzilla

No, it could still be automated. Like say you're stuffing data into the playfield registers and moving one of the sprites in 4-pixel increments to see if the desired bits are coming through, which would show up in the collision latches. Or you could keep the player objects still and assert their bits one by one, checking collisions with some other object. Stuff like that.

It would have to deal with the fact that most TIA registers are write-only. Something that manipulates the collision flags most likely.

It works! Eventually. I tested the ROM after cleaning the Harmony and the cartridge port, and one bit wasn't being stuffed, but it corrected itself in about 30-45 seconds top to bottom. Strange.

27,900

The forum is saying I don't have permission to download it. EDIT: I can download other attachments in this thread just fine, even in a private window. It's just this latest ROM that I can't get.

22,500 I forgot how fast this game gets.

Dragster - 5.97 Hooray, under six!

For some reason I can't edit my last post, but if you're interested, this file has the checks and heuristics I mentioned.

It mostly searches the ROMs for certain load and store instructions associated with bankswitching hotspots, along with a simple heuristic based on file size.

Looks cool. About what frame rate does it run at?

Slightly better. Enduro - 638.9

Skiing - 32.43

Enduro - 609.7 I definitely hate the snow more than the fog. Not sure how many more rounds of this I want to play, since it takes so long.

I'm listed twice on the Gyruss list, in positions 5 and 20.

Galaxian - 20,110

Significant improvement, with calmer hands and leveler head. Gyruss - 231,700

Galaxian - 17,120 EDIT: I'm annoyed that Gyruss doesn't have any cooldown period for the fire button after losing a game. I broke a hundred fifty thousand points, but because I was firing away at an enemy formation when I died and didn't immediately stop, I started a new game and lost the chance to photograph the score. #[email protected]%$!!

Of course. Better to get the functional stuff out of the way first.

I wonder if the logo might not be more visually imposing if you did it in a two-line kernel, to make the pixels more square like in your Excel screenshot. But the one-line resolution looks good too in any case.