On Jan 12, 2005, at 10:08 AM, Victor Emanuel wrote:
hi all,
�
�
� I would like to know why interrupts caused by instructions ( software ) cost more than by hardware signals in TinyOS.
�� So the doubt are generated because both of them spent time to save the registers.
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�
The hardware cost is the actual issuing of the interrupt (e.g., storing the PC, etc.). The software cost is spilling registers.
Phil
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"We shall not cease from exploration And the end of all our exploring Will be to arrive where we started And know the place for the first time."
- T. S. Eliot, 'Little Gidding'
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