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An ever increasing number of dynamic interactive applications are implemented on portable consumer electronics. Designers depend largely on operating systems to map these applications on the architecture. However, today's embedded operating systems abstract away the precise architectural details of the platform. As a consequence, they cannot exploit the energy efficiency of scratchpad memories. We present in this paper a novel integrated hardware/software solution to support scratchpad memories at a high abstraction level. We exploit hardware support to alleviate the transfer cost from/to the scratchpad memory and at the same time provide a high-level programming interface for run-time scratchpad management. We demonstrate the effectiveness of our approach with a case-study.

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Highlights d A single olfactory conditioning trial induces long-term memories in honeybees d These memories differ in their dependency on translation and transcription d 4 h after conditioning, the memory depends only on translation processes d One and three days later, the memory depends both on translation and transcription