Arm Development Studio forum difference between saved copy and banked copy

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difference between saved copy and banked copy

Rui Ma over 12 years ago

Note: This was originally posted on 15th January 2013 at http://forums.arm.com

Hi there,

I am reading ARM architecture manual v7, part B.
In the discretion of system register banks on page 1144, it refers SPs with a term as "banked copy"; while for the SPSRs, it uses "saved copy".
Is there a difference? I mean on the implementation of the micro-architecture.
Thanks in advance!