Re: [LinuxBIOS] Disassembly?

[Drew Lundsten]

> Now that we have cache-as-ram, it is possible to build a linuxbios
> which contains the emulator. But what you would do is very different:
> start up
> enable CAR
> start the emulator with the proprietary BIOS as the payload.
> Run it with max debug, and observe the register activity, etc.
> you will be able to see enough to probably figure out how DRAM is

started up.

This is cool and better than disassembly. How is it different in terms
of copyright law?

Drew

[LinuxBIOS] Disassembly?

[ron minnich]

On 11/30/06, Drew Lundsten  wrote:
> This is cool and better than disassembly. How is it different in terms
> of copyright law?

who the heck knows ... IANAL. I am probably wrong, who knows.

All I know is that the guys who reverse-engineered the xbox worked it
out by watching the CPU bus and how it worked, and published the work,
and I never heard about lawyers in that case.

I have been given to understand that you can observe something and
work backwards from that; it's the disassembly that gets you in
trouble. If you use the emulator to observe register sets and clears,
that's different that disassembly to me.

But again, who knows. Are you sure you have to work with a chipset
company that is not going to help you with linuxbios? Just wondering.

ron

[LinuxBIOS] Disassembly?

[Alan Carvalho de Assis]

Also the ATI Rage XL driver (xlinit.c, now off from Linux kernel) was
developed using a PCI analyzer.

AFAIK ATI never processed anyone because it.

Good luck,

Alan

2006/11/30, ron minnich :
> On 11/30/06, Drew Lundsten  wrote:
> > This is cool and better than disassembly. How is it different in terms
> > of copyright law?
>
> who the heck knows ... IANAL. I am probably wrong, who knows.
>
> All I know is that the guys who reverse-engineered the xbox worked it
> out by watching the CPU bus and how it worked, and published the work,
> and I never heard about lawyers in that case.
>
> I have been given to understand that you can observe something and
> work backwards from that; it's the disassembly that gets you in
> trouble. If you use the emulator to observe register sets and clears,
> that's different that disassembly to me.
>
> But again, who knows. Are you sure you have to work with a chipset
> company that is not going to help you with linuxbios? Just wondering.
>
> ron