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850 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 4237d 08h /openrisc
849 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 4237d 08h /openrisc
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 4237d 08h /openrisc
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 4237d 08h /openrisc
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 4237d 08h /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 4237d 08h /openrisc
844 skrzyp 4238d 01h /openrisc
843 Applied RDiez suggestions skrzyp 4238d 01h /openrisc
842 Moving GDB 7.1 into the old collection. jeremybennett 4239d 23h /openrisc
841 GDB 7.2 is now considered the stable version. jeremybennett 4240d 00h /openrisc
840 Relocate GDB 6.8 to the old directory. jeremybennett 4240d 00h /openrisc
839 Forgot about updating linker flags, thanks RDiez! skrzyp 4241d 03h /openrisc
838 added branch-delay option and sets r0 to zero skrzyp 4241d 16h /openrisc
837 Instructions redirecting users to new directories. jeremybennett 4247d 21h /openrisc
836 The old legacy directory, which just a README these days. jeremybennett 4247d 22h /openrisc
835 Move current version to stable directory. jeremybennett 4247d 22h /openrisc
834 Move current version to stable directory. jeremybennett 4247d 22h /openrisc
833 Move current version to stable directory. jeremybennett 4247d 22h /openrisc
832 Move current version to stable directory. jeremybennett 4247d 22h /openrisc
831 Move current version to stable directory. jeremybennett 4247d 22h /openrisc

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