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cleanup scratch register usage #3

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andreiw opened this issue Nov 17, 2015 · 0 comments
Open

cleanup scratch register usage #3

andreiw opened this issue Nov 17, 2015 · 0 comments

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@andreiw
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andreiw commented Nov 17, 2015

Bring sanity to asm routines. Validate that all of them use scratch registers instead of arg registers, and that they save and restore values as appropriate on the DSP.

Maybe introduce "volatile" scratch registers that are known to never be saved across subroutine calls.
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@andreiw