How to crash the PSP, so watchdog restarts after 10 seconds?

[Torch]

How do I crash the PSP such that it autorestarts after 10 seconds or whatever?

[moonlight]

lol there are tons of ways.

asm("break\n");

_sw(0, 0);

int *x = NULL; *x = 0;

etc, etc

[Torch]

Thank you. I didn't have any idea how. And I presumed that nonsense in asm(..) would give a compiler error.

The rest of my program will function properly right? I want it to crash only when I call that code.

[TyRaNiD]

The real question is why on earth would you want to? :)

[Torch]

The real question is why on earth would you want to? :)

So people will get tired of guessing passwords..

[TyRaNiD]

Can't you just do it nice and call scePowerRequestStandby() which will shut down the PSP without any extra cludges :)

[Torch]

Can't you just do it nice and call scePowerRequestStandby() which will shut down the PSP without any extra cludges :)

But this way they have to stare at the "wrong password" screen for 10 seconds. Its more the annoyance factor.

[TyRaNiD]

Code: Select all

sceKernelDelayThread(10000000); scePowerRequestStandby();

does the same thing :P

[Torch]

Code: Select all

sceKernelDelayThread(10000000); scePowerRequestStandby();

does the same thing :P

But they can switch it off in 3 seconds using the power switch if its only DelayThread. Crash cant be turned off in less than 10 seconds.

[TyRaNiD]

Fine,

Code: Select all

scePowerLock(0); sceKernelDelayThread(10000000); scePowerUnlock(0); scePowerRequestStandby();

After all I could probably get an exception handler in somewhere to prevent you crashing it in the first place :P

[Torch]

I though those were kernel mode only functions? Will the powerlock thing be usable in my vsh mode module?

[TyRaNiD]

They are all user mode functions. At least they should be :) The lock stuff is so for example a game could write out a file and be sure the user cannot possibly power off during that period.

[Jim]

How about while(1);

Jim

[J.F.]

They are all user mode functions. At least they should be :) The lock stuff is so for example a game could write out a file and be sure the user cannot possibly power off during that period.

When I was working on SNES9xTYL for the Slim, I found that the exception handler couldn't be used on the Slim. Sakya (I think it was him) eventually made a kernel mode prx that could be loaded from user mode that allowed an exception handler to be used from a Slim app. You can find that with a search.