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Issue No.05 - October (1995 vol.15)
pp: 22-30
ABSTRACT
This article discusses an architectural innovation from ARM known as Thumb. High-end embedded control applications such as cell-phones, disk drives, and modems are demanding more performance from their controllers whilst still requiring low costs. By implementing a second "compressed" instruction set, Thumb reduces RISC code size and hence provides 32-bit ARM RISC performance at 8/16-bit system cost. The article starts with a description of the problems of embedded control and then discusses the Thumb solution and its implementation. Typical application areas and competitive benchmarking are also covered.
INDEX TERMS
Embedded systems, RISC architecture, embedded controllers
CITATION
Simon Segars, Keith Clarke, Liam Goudge, "Embedded Control Problems, Thumb, and the ARM7TDMI", IEEE Micro, vol.15, no. 5, pp. 22-30, October 1995, doi:10.1109/40.464580
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