How works Bios Chips

sumas · Post by **sumas** » Sun Dec 18, 2011 1:37 pm

Hello Guys,

Is there any documentation how the Qoob and Viper Chips work?
Im interrested in how it get controller before the org. BIOS boots.
How can i stop the boot process of the normal cube.

Later on it would be interesting how to get one code in there. (dreams of the future)

Would be nice if i can get some informations.

thanks for all informations

Sumas

_Nold_ · Post by **_Nold_** » Sun Dec 18, 2011 3:13 pm

sumas wrote: Im interrested in how it get controller before the org. BIOS boots.

That is exactly the same i was wondering about today, too ^^
I'm pretty exited for the answer

YouTube · Post by **emu_kidid** » Sun Dec 18, 2011 9:10 pm

Do you mean when you hold X to boot to original BIOS? that's just cause it always boots to Qoob first and if it notices X is held down it'll boot the original IPL.

You can get your own code on the Qoob (by XOR'ing a headerless DOL file compiled for 0x81300000 with the IPL XOR key) and for Viper GC/Extreme via the makevgc application.

sumas · Post by **sumas** » Sun Dec 18, 2011 9:39 pm

I didn´t want to get to the normal bios.

I want to stop the boot process.
And then i want to go on with the boot process

In detail:
I want to put a pulse VU to my cube.
To set up the chip i must push a botton. the only bottom on cube is the reset one.
So i have to stop the boot process.
Setup Pulse VU
and after 30sec. it boots to normal bios.

In short:
Power on
timer coutdown startet
setup pulse vu
timer at 0
original bios start

So if i could stop the normal boot process like the bios chips, it would be possible to run a timer and then it go on normal.

For future it would be nice to know how i can run own code before original bios.

How works Bios Chips

How works Bios Chips

Re: How works Bios Chips

Re: How works Bios Chips

Re: How works Bios Chips