Nate Lawson 8fc0f4c675 Instead of scanning the entire lower 1 MB of RAM, only scan locations
where the RSD PTR can actually occur.  According to section 5.2.2
of the ACPI spec, we only consider two regions for the base address:

    1. EBDA (0x0 - 0x3FF)
    2. High memory (0xE0000 - 0xFFFFF)

I don't know whether this fixes any actual problems but is more correct.
2004-05-14 16:52:39 +00:00
..
2004-03-05 02:48:22 +00:00