Flat memory model paradigm (1 Ergebnisse)

Taschenbuch. Zustand: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Please note that the content of this book primarily consists of articlesavailable from Wikipedia or other free sources online. Flat memory modelor linear memory model refers to a memory addressing paradigm inlow-level software design such that the CPU can directly address all ofthe available memory locations without having to resort to any sort ofmemory segmentation or paging schemes. Memory management andlogical-to-physical address translation can still be implemented on topof a flat memory model in order to facilitate the operating system'sfunctionality, resource protection, multitasking or to increase thememory capacity beyond the limits imposed by the processor's physicaladdress space, but the key feature of a flat memory model is that theentire memory space is linear, sequential and contiguous from addresszero to MaxBytes-1. Memory management is therefore optional; it isneither necessary, nor dictated by the CPU architecture: In a simplecontroller, or in a single tasking embedded application, where memorymanagement is not needed nor desirable, the flat memory model is themost appropriate, because it provides the simplest interface from theprogrammer's point of view, with direct access to all memory locationsand minimum design complexity.…