Hi Russell

Thanks for the reply, I'll try that, haven't done any ASM for years but
could come in useful now

Richard

russell kym horsell wrote:
> R J Thompson <rjt@linuxworks.co.uk> wrote:
>> Hello
> [...serial number...]
>
>
> First step will be to enable cpu serial number in the BIOS. By
> default it's usually switched off.
>
> On some *bsd O/S it's displayed by the boot mesages -- i.e.
> lood in obsd somewhere like /var/run/dmesg.boot or use the "dmesg"
> commant if not too far into uptime.
>
> Some VM utilities also print out whatever internal register on the x86
> (or whatever) the cpu serial is in.
>
> On x86 chips there's a CPUID instruction. If you put 3 in EAX first,
> it returns the chip serial no. Happy "asm(...)" or assembly hacking.