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Rev 2083 Rev 2441
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 * Both context_save() and context_restore() eat two doublewords from the stack.
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 * Both context_save() and context_restore() eat two doublewords from the stack.
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 * First for pop of the saved register, second during ret instruction.
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 * First for pop of the saved register, second during ret instruction.
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 *
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 *
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 * One item is put onto stack to support get_stack_base().
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 * One item is put onto stack to support get_stack_base().
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 */
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 */
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#define SP_DELTA    (8+STACK_ITEM_SIZE)
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#define SP_DELTA    (8 + STACK_ITEM_SIZE)
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/*
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/*
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 * Only save registers that must be preserved across
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 * Only save registers that must be preserved across
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 * function calls.
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 * function calls.
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 */
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 */