Remember to hold the reset button before you turn off your NES games, kids. Do not repeat my mistake.
This file used to be right before reaching the Great Palace, with all upgrades and items. Now it is nothing but endless glitches.
>>3074189
Only when you save.
Hours of hard work, wasted.
I don't even.
All kinds of fuckery results from this. Kind of fun to roam around this way...
...were it not for the random lock-ups.
Moral of the story: don't play NES games on real hardware drunk.
>>3074213
forgot pic
Post a video of you beating the game like this.
Should have spent your time hitting the gym.
This happened to me once even though I held reset.
Anyone wanna explain the "hold reset" thing? I have no idea what you are all banging on about.
>>3074524
>Anyone wanna explain the "hold reset" thing?
>>3074524
it halts the CPU preventing corruption the the SRAM during a poweroff
>>3074524
I forget what it is in the actual circuit that causes it (or prevents it, depending on how you're looking at it), but just hitting the power button can cause the CPU to spit out random junk (which usually doesn't matter, cause you're turning off your game), and there's the potential that that random junk will cause it to write something to the cart's backup memory. It doesn't do that when you hold reset.
>>3074582
this is essentially correct
http://board.zsnes.com/phpBB3/viewtopic.php?p=28592#p28592
>>3074585
Correct. This is also why a CRT will display random garbage or the electron beam leap around when you power it off, because as the voltage drops, it begins to behave erratically.
>>3074589
"It's not alone in that regard. Crystalis, StarTropics, and Zoda's Revenge behave similarly.
The MMC3(or 6 in the case of the ST games) is between SRAM and the NES, and has write-protect bits that can be set, so it protects SRAM from spurious writes.
But Nintendo'd already standardized on "hold reset while turning the power off", and it seemed better to make it a global rule than only for SOME battery-backed cartridges."
This is true btw I never hold down Reset on Kirby's Adventure because I know it's not an MMC1 game so you don't have to do that.
>>3074585
The CPU's behavior in a low voltage situation is undefined. It was just never accounted for in the chip design.
In practice it turned out that the CPU may perform a few random operations before finally shutting down, one of which could be a garbage write to a memory location. If writing to RAM then no harm done because that's going away anyway, but if writing to SRAM then you have a problem...
>>3074589
Another example. In the early days of personal computers, they advised you to not leave floppy disks in a drive while powering it up or down because spurious voltages could travel through the drive heads and corrupt the disk.
This was mostly a problem in the 70s and I don't think you had to worry about it anymore by the time the IBM PC came out.
>>3074189
>Remember to hold the reset button before you turn off your NES games
I NEVER did this and I NEVER experienced a single corrupted save.
>>3074764
It doesn't always happen because the CPU writes occur in random memory locations and there's a relatively small chance of hitting the SRAM chip, but it's not impossible.
>>3074213
>on real hardware drunk
Man, what a challenge.
>>3074764
it can happen, I lost all of my zelda saves to this once.
>>3074189
The opposite happened to me. I used to turn off my NES without hitting Reset and kept my saves just fine. Then I heard of the Reset thing so I tried it. Immediately lost everything. Never did it again.
>>3074524
NES games that had battery-backed saves required you to hold the Reset button in while you were turning off the power
The gradual loss of power while the NES was being turned off causes the CPU to essentially behave randomly for a short period of time and this can run the risk of writing random data in place of your save file, the purpose of holding Reset is that it forces the CPU into a busy loop while the button is held and thus avoids this risk
>>3074585
Are you sure it had nothing to do with the ZiF connector or early versions of those games? Cause i had zelda 1 when i was a kid and it had the additional red text on the game over / save screen and i NEVER had to hold reset, neither with kirby's Adventure.....
>>3075842
I had a top-loading NES as a kid and I can only recall one occasion where I've had a save file erased and it was when I loaned Kirby's Adventure to a friend who had a front-loading NES, I'm not sure if ZIF has anything to do with it or the top-loaders added some sort of protection that made holding Reset unnecessary
>>3074189
Isn't the NES's reset button just a power bypass anyway? Unlike the SNES, the power LED goes off when you reset.
>>3074764
It's like on old computers how turning it off without shutting down properly would run scandisk because you may have corrupted date. Most of the time it will never happen but do you really want to risk it?
>>3074189
You also need to do this for SNES games. I remember erasing my older brothers saves many times as a kid but I think I might have just yanked the cartridge out without turn the system off. I was a dumb kid.
>>3075953
>I might have just yanked the cartridge out without turn the system off.
You can't do that on the SNES because a tab slides into place and locks the cart in.
>>3076409
>Not for all cartridges, idiot.
Ouch. I'm so sorry I didn't know the protection mechanism wasn't universally implemented. And what is there for me at YouTube?
>>3074659
Don't leave cartridges with SRAM or floppies on top of your CRT either
>icp_magnets.jpg
>this old hardware sucks i wish there was a better more modern way to enjoy their binary data on recent hardware and be able to save at any time
>>3076502
SRAM? Is it magnetic sensitive? Or is it some kind of RF issue?
>>3076519
Magnets can fuck with anything electronic. All it takes is a strong enough magnet and/or shitty shielding.
I've never held down the reset button when turning off the NES, and I never had any problems with save file corruption or loss. Maybe it depends on the model.
>>3076502
>>3076608
>>3076443
>I didn't know something everyone who's ever played a SNES knows
Yeah, we know.
>>3074189
This is why I never beat Final Fantasy until the GBA port. Twice I got almost to the end of the game and the NES deleted the save and I didn't want to put myself through the torture of playing it again. At least the GBA version was quick when I decided to go though it finally.
>>3077067
I'm sorry, but did you discover something in the field of physics that actually disproves the unification of the electromagnetic force?
