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846 or1200: Fix for cache bug related to first_{hit|miss}_ack

Under certain circumstances, when first_hit_ack and
first_miss_ack is asserted at the same time, cache data
would wrongly be overwritten with bus data.

Patch by: Matthew Hicks <firefalcon@gmail.com>
stekern 4239d 12h /openrisc/
845 or1200: l.lws support

Using the l.lws instruction doesn't work currently.
It simply skips the instruction. No exception or reaction.
The patch attached simply duplicates the behaviour of
l.lwz for l.lws.

Patch by: Jeppe Græsdal Johansen <jjohan07@student.aau.dk>
stekern 4239d 12h /openrisc/
844 skrzyp 4240d 05h /openrisc/
843 Applied RDiez suggestions skrzyp 4240d 05h /openrisc/
842 Moving GDB 7.1 into the old collection. jeremybennett 4242d 03h /openrisc/
841 GDB 7.2 is now considered the stable version. jeremybennett 4242d 04h /openrisc/
840 Relocate GDB 6.8 to the old directory. jeremybennett 4242d 04h /openrisc/
839 Forgot about updating linker flags, thanks RDiez! skrzyp 4243d 07h /openrisc/
838 added branch-delay option and sets r0 to zero skrzyp 4243d 20h /openrisc/
837 Instructions redirecting users to new directories. jeremybennett 4250d 01h /openrisc/

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