PROCESSING DEVICE FOR EXTRACTING A SET OF DATA FROM A DATA WORD, AND CORRESPONDING ELECTRONIC CIRCUIT AND DATA EXTRACTION METHOD

摘要

The invention relates to a processing device (500) for extracting a set of data from a data word (D1, D2, D3, D4), the device including an arithmetic and logic unit (50). The arithmetic and logic unit (50) includes extraction means (504) for processing an extraction command, the operands of which are: the data word, position information relating to the position of the data set within the data word and size information relating to the size of the data set, the extraction means (504) including: a first input (E1) receiving the data word; a second input (E2) receiving the position information and the size information; a third input (E3) receiving the extraction command, the extraction means (504) enabling the data set to be obtained by means of shifting the data word in accordance with the position and size information.