load/store inside grid, outside of scratchpad

Any technical questions about the Epiphany chip and Parallella HW Platform.

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load/store inside grid, outside of scratchpad

Postby dobkeratops » Tue Mar 22, 2016 2:32 am

just curious, what currently happens with a load/store instruction addressed within an e-cores region within the grid, but outside of the physical scratchpad (i.e in the area reserved for future scratchpad growth)
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Re: load/store inside grid, outside of scratchpad

Postby jar » Wed Mar 23, 2016 9:36 pm

You should boot up your board and try :D

It's garbage, though. Don't do it.

And reading beyond 0x100000 (1 MB) may lock up cores since it's no longer a local address and probably not addressable (depending on the address). If the address is mapped to another core, then you'll get the memory at that location.
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