K 10
svn:author
V 4
jkim
K 8
svn:date
V 27
2010-03-31T15:32:36.328836Z
K 7
svn:log
V 466
MFC:	r205297, r205347, r205452, r205455, r205649, r205650

Sync. x86bios with HEAD.

- Detect illegal access to unmapped memory within real mode emulator.
- Map EBDA if available and support memory wraparound above 1MB as VM86 does.
- Set initial %ds to 0x40 as X.org int10 handler does.
- Print the initial memory map when bootverbose is set.
- Optimize real mode page table lookup.
- Add strictly aligned memory access for distant future.
- Update copyright date.

END