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sim/2376: powerpc timebase cannot be read via mfspr 268 / mfspr 269


>Number:         2376
>Category:       sim
>Synopsis:       powerpc timebase cannot be read via mfspr 268 / mfspr 269
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Mon Dec 03 23:08:01 UTC 2007
>Closed-Date:
>Last-Modified:
>Originator:     Till Straumann
>Release:        gdb-6.5, gdb-6.6
>Organization:
>Environment:

>Description:
Apparently, reading the time-base register using the MFSPR
instruction (rather than mftb / mftbu) is not implemented.
AFAIK, it should be part of the VEA (and on real CPUs it works).
>How-To-Repeat:
mfspr x, 268
mfspr x, 269

crash
>Fix:
attached
>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: text/x-patch; name="psim-tb-spr.diff"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="psim-tb-spr.diff"

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