Re: bochs dcache

Hi,

 

Unfortunately I have to disappoint.

The data cache was never included in any official Bochs version, from
emulation point of view there is no need for data cache as it doesn't have
any impact on emulation correctness and doesn't provide any speedup.

It could be interesting to have data cache for HLE/RTM features modelling
but they currently not supported by Bochs.

I saw some data cache models as Bochs instrumentation plugins but they never
were included in official releases.

You may try to find some on the net, I tried for few minutes now but didn't
find it.

On the other hand, it is not so complicated to write a one. If you write
data cache instrumentation module, please contribute it, we would like to
include it with other instrumentation examples.

 

Thanks

Stanislav

 

From: ytsmtipe <[email protected]> 
Sent: Monday, 24 December 2018 12:40
To: [email protected]
Subject: [Bochs-developers] bochs dcache

 

Hi all,

  I remembered that some old version bochs implemented a data cache which
just for experiment: if you enable the dcache, you can study the cache
mechanism, but it will slow down bochs as both the data in BX_MEM_C::vector
and dcache are in DDR memory, there is no real dcache.

  I want to study the cache code, but I can't find the version, it would be
very appreciate if any one can tell me the bochs version which implemented
dcache? thanks a lot!

 

Best Regards,

-ytsmtipe

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