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848 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 4194d 07h /openrisc/trunk/
847 or1200_genpc: fix ipcu_cycstb_o generation

In some circumstances the CPU is still waiting for the lsu to finish
while in a pre branch state. However, ipcu_cycstb_o is set and the cycle
starts with the wrong address on the iwb bus (the one before the
branched address).

This fixes this issue.

Patch by: Franck Jullien <franck.jullien@gmail.com>		 stekern 4194d 07h /openrisc/trunk/
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 4194d 07h /openrisc/trunk/
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 4194d 07h /openrisc/trunk/
844 skrzyp 4195d 01h /openrisc/trunk/
843 Applied RDiez suggestions skrzyp 4195d 01h /openrisc/trunk/
842 Moving GDB 7.1 into the old collection. jeremybennett 4196d 23h /openrisc/trunk/
841 GDB 7.2 is now considered the stable version. jeremybennett 4196d 23h /openrisc/trunk/
840 Relocate GDB 6.8 to the old directory. jeremybennett 4196d 23h /openrisc/trunk/
839 Forgot about updating linker flags, thanks RDiez! skrzyp 4198d 02h /openrisc/trunk/

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