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USP use

Question asked by MFlamer on Nov 14, 2015
Latest reply on Nov 24, 2015 by PrasanthR

If i'm in supervisor mode, can I use both usp and sp as seperate stacks? I would like to do the following but am getting assembler errors.

 

[--usp] = r0;

[--sp] = r1;

 

just as a simple example. If this is not possible, how exactly is usp used? Thanks.

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