John Baldwin 14765ad2e0 - Set 'dmadat' earlier so that we properly setup the heap if we fail to
locate a high memory area for the heap using the SMAP.
- Read the number of hard drive devices from the BIOS instead of hardcoding
  a limit of 128.  Some BIOSes duplicate disk devices once you get beyond
  the maximum drive number.

MFC after:	1 month
2010-05-21 16:58:52 +00:00
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