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Embedded Control Problems, Thumb, and the ARM7TDMI
October 1995 (vol. 15 no. 5)
pp. 22-30
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, Oct. 1995, doi:10.1109/40.464580
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