Efficient Fault-Tolerant Addition by Operand Width Consideration

Autor: Joerg Keller, Bernhard Fechner
Rok vydání: 2010
Předmět:
Zdroj: FERS-Mitteilungen. 28:44-46
ISSN: 0724-5319
DOI: 10.1007/bf03345443
Popis: Addition is a central operation in microcontrollers and hence faults should be detected for safety reasons. We extend the principle of recomputing with shifted operands (RESO) by doing the re-computation concurrently to the computation in the case of small operands. Thus, we generate a solution cheaper than two adders and faster than simple repetition. To extend RESO, we consider the actual bit-widths of the operands. We validate our method with data from static code analysis of two application kernels.
Databáze: OpenAIRE