On Wed, 11 Jul 2007, H. Peter Anvin wrote:
> Bodo Eggert wrote:
> >> That being said, one could argue that since this is a BIOS interface it
> >> should be queried via INT 16h, AH=02h and stuffed in the zeropage
> >> structure. This would also solve the issue of it not being supported by
> >> non-BIOS firmware.
> >
> > This is an interesting option, but it's more invasive. I'd rather like a
> > feedback saying we can depend on that data area to be there.
>
> I don't think we can. You might find garbage there.
I asked you not to say that ...
Can somebody using LinuxBIOS or OpenFirmware please do
dd if=/dev/mem bs=1 count=1 skip=$((0x417)) | hexdump
- and -
dd if=/dev/mem bs=1 count=14 skip=$((0x400)) | hexdump
You should get
- one byte for the keyboard status, 0x20 == Numlock
- seven words for the legacy serial and parallel ports, port address only
(e.g. 03f8 02f8 0000 0000 0378 0000 0000)
--
C program run. C program crash. C programmer quit.
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