neel 8f99933d82 Add emulation of the "outsb" instruction. NetBSD guests use this to write to
the UART FIFO.

The emulation is constrained in a number of ways: 64-bit only, doesn't check
for all exception conditions, limited to i/o ports emulated in userspace.

Some of these constraints will be relaxed in followup commits.

Requested by:	grehan
Reviewed by:	tychon (partially and a much earlier version)
2014-05-23 05:15:17 +00:00
..
2014-03-11 10:07:01 +00:00
2012-05-24 22:00:48 +00:00
2012-03-28 20:58:30 +00:00
2014-03-11 10:27:57 +00:00