On 12-12-07 13:59, linux-os (Dick Johnson) wrote:
On Tue, 11 Dec 2007, [utf-8] Alejandro Riveira Fern?ndez wrote:
On my AMD 3800 X2 (2000MHz) ULi M1697 2.6.24-rc5 i get:
cycles: out 1844674407370808, in 1844674407369087
It is not constant but variations are not significant afaics
It looks as though this hardware does not have a port 0x80
and its access is trapped by the hardware with a long time-out!
This may be the reason when the _p was called "harmful" on this
platform!
I'm not sure the "rules" for port access allow for this kind of
behavior. This design may be defective, needing to be brought
to the attention of the vendor. A decent vendor would update
a FPGA and provide code to burn a new BIOS.
I'm afraid it's just the test that is "defective" as 64-bit code. For some
reason "=A" doesn't mean edx:eax on amd64 even though it's a useful register
pair to be able to name there as well. Didn't catch that being without amd64
machines myself.
Oh well. gcc -m32 fixes it...
Rene.
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