/vr/ - Retro Games

>>5444570
It's true. I actually entered this code and my NES exploded and killed me.I now haunt this forum as a warning to anons who might incur the same terrible fate.

>>5444570
Muslims in arab countries have been using this code for years to turn Nintendos into IEDs.

The Unabomber did this as well. Dont use that password.

>>5444570
You are literally retarded for thinking this could be even remotely true. In fact, I'm going to go make a video of me putting the code in just to show you what a gullible little faggot you are.

Brb

>>5444639
Will thr video have dragon dildos

>>5444639
Dont! You are putting your neighborhood at risk!

>>5444639
you guys remember when that anon on /b/ found a grenade and they told him to pull the pin and the next day it was on the news.

>>5444639
>>5444662

>>5444663
Never gets old.

Apparently it crashes the virtual console emulator but not a real nes

>>5444663
Please tell me that’s real.

>>5444706
Theres another one where a kid microwaves a grenade.

>>5444639
We're waiting...

>>5444975
He's dead

>>5444639
rip

>>5444639
Press S to shit on grave
S

it just crashes the game. i played this game a bunch and used to do it on stream when i was a speedrunning faggot

It's capable of bricking 3DSes.

I just tried this on Switch, it just pops up with an error message. I also tried Kirby's Adventure stone in water glitch, it does the same, cant seem to trigger end credits. hrm

It produces a black screen and the NES hangs. Supposedly on the yellow label reissue cartridges it causes a reset instead.

>>5445227
On Virtual Console it crashes the emulator

Some people have worked out the specific technical details of why this code causes a lockup. Apparently it triggers a switch of the PRG bank, but the incorrect one so after entering the code, the CPU executes an undocumented HLT instruction (opcode $02). You can do the same trick on any 6502-based machine*. For example, on a C64 try typing POKE49152,2:SYS49152. A real C64 will freeze dead, emulators will throw up a CPU JAM message.

*Unless it uses the CMOS-based 65C02 like in later model Apple IIs which doesn't have undocumented opcodes

>>5445250
>Nintendo and Apple use the same CPUs

>>5445250
The NES uses a Ricoh 2A03, which isn't a real MOS 6502, as it has audio capabilities and communication lines to the PPU, but as far as i know ASM code runs identically to the real Chuck Peddle Speed Metal aside from the exclusion of BCD, binary coded decimal

>>5445329
The NES CPU was an unauthorized 6502 clone that they managed to get away with by disabling decimal mode. Since it's still an NMOS chip, the illegal 6502 opcodes are present (they were removed from CMOS 6502s).

>>5445336
Bro What Does that mean do they Still Use The Same CPUs

>>5445348
>>5445329
Is English not your first language or are you stoned?

>>5445373
No!

>>5445224
>Supposedly this will actually fry NESes
>I just tried this on Switch

>>5444663
>17 Anos
Fuckkng underage

>>5444570
Concerning retro machines AFAIK there's only one machine that actually could be harmed on a hardware level by software. And this was the Commodore PET, where you could actually kill your screen on certain models by just a simple Poke command to a specific memory address.
>The PET-specific killer poke is connected to the architecture of that machine's video rasterizer circuits. In early model PETs, writing a certain value to the memory address of a certain I/O register ( POKE 59458,62 ) made the machine able to display text on the screen much faster. When the PET range was revamped with updated hardware, it was quickly discovered that performing the old trick on the new hardware led to disastrous behavior by the new video chip, causing it to destroy the PET's integrated CRT monitor.
http://www.6502.org/users/andre/petindex/poke/index.html

It was always wack experimenting with different LOLsorandumb Metroid passwords to see what happens. Of course they didn't get to have this kind of fun in Japan since it was an FDS game that wrote saves to the disk.

>>5445250
On 6502-based computers, undocumented opcodes were mainly used in copy protection routines. Demos also use them, but most normal software never has undocumented opcodes. They can do some cool stuff and let you perform certain operations with fewer instructions/memory usage than normal instructions, but in general it's not recommended to use them. Some opcodes like LAX are not stable and can produce unpredictable results on some chips. However, most undocumented opcodes should work the same way on all NMOS 6502s.

>>5445546
>>5445250
Should add. Part of Nintendo's rules/guidelines for NES developers was that you were not allowed to use undocumented instructions in a game.

>>5445336
>>5445334
The 2A03 has decimal mode disabled by cutting a trace and the chip also includes the sound hardware and a DMA controller. Disabling decimal mode ensured they did not have to pay Commodore royalties and this feature was considered unnecessary for game programming.

>>5445584
It wasn't outright forbidden, but Nintendo recommended against their use. In the late NES period (1990 onward) they eased up on this once they dropped their plans for the SNES to retain backwards compatibility. Only a small number of games are known to have undocumented instructions, mostly unlicensed ones.

>>5445625
Puzznic has a double NOP in it.