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packetC Programming by Dwight Mulcahy, Ralph Duncan, Peder Jungck

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R E P R I N T  8

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packet Field and Bitfield Allocation Orderby Ralph Duncan

Abstract

C and C -based languages give implementations substantial freedom in choosing schemes for bit and byte allocation. The ensuing variability can make it difficult to port programs that depend on particular structure and bit-field layouts. With these problems in mind, packetC prescribes that implementations use big endian byte allocation order and little endian bit allocation order. This paper reviews the related issues of structure field, byte and bit allocation order and describes an algorithmic approach for compensating when the implementation executes on a processor ...

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