Re: [Gems-users] Start Ruby after the simulation is running?

[Dan Gibson <degibson@xxxxxxxx>]

Have a look at the various headers that come in the LogTM codebase, in transactions/common/ (GEMS 2.0+) in particular. There should be some handy macros there intended for this purpose.

Regards,
Dan

Philip Garcia wrote:

Look in the simics reference manual about using the special magic instructions.  Using magic breakpoints in the code (combined with having set magic-break-enable before running the code) will have simics stop execution at that instruction.  Just make sure you do a "c 1" after the magic instruction before saving the processor's state.  If you don't do this, the state will be saved at the magic instruction, and telling it to execute again will just cause it to break again.

Phil

On Mar 3, 2008, at 1:13 AM, Jim Leek wrote:

The wiki FAQ (http://www.cs.wisc.edu/gems/doc/wiki/moin.cgi/Frequently_Asked_Questions) recommends the following:

4) Be careful to only simulate the important regions of code -- do not

include thread creation / destruction, process forking, etc.

That sounds like a good idea.  What is the standard way to do this?  It seems like you would have to throw an instruction into the benchmark code to halt the simulation and drop back to the simics CLI.  Is there an instruction to do this?  I guess I could use getchar() to do that.  What did the logTM guys do?

Jim
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