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ARCS
2010
Springer

Exploiting Inactive Rename Slots for Detecting Soft Errors

13 years 10 months ago
Exploiting Inactive Rename Slots for Detecting Soft Errors
Register renaming is a widely used technique to remove false data dependencies in superscalar datapaths. Rename logic consists of a table that holds a physical register mapping for each architectural register and a logic for checking intra-group dependencies. This logic checking consists of a number of comparators that compares the values of destination and source registers. Previous research has shown that the full capacity of the dependency checking logic is not used at each cycle. In this paper we propose some techniques that make use of the unused capacity of the dependency checking logic of the rename stage in order to detect soft errors that occur on the register tags while the instructions are passing through the frontend of the processor.
Mehmet Kayaalp, Oguz Ergin, Osman S. Ünsal, M
Added 28 May 2010
Updated 28 May 2010
Type Conference
Year 2010
Where ARCS
Authors Mehmet Kayaalp, Oguz Ergin, Osman S. Ünsal, Mateo Valero
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