Chapter 4. Moving to Multi-core Intel Architecture
The choice of employing 32-bit or 64-bit Intel instruction set architecture (ISA) depends on your application’s needs. The Intel® 64 ISA offers a larger addressable memory region and larger registers; however, it costs more in terms of data and instruction size.
Porting legacy applications from architectures with big endian byte order may require making the code endian neutral, using binary translation software or using BiEndian Technology to deal with endianness issues.
Understand the features of your target operating system (OS) with regard to taking advantage of multi-core processors. If your target OS does not support symmetric multiprocessing (SMP), the benefits of multi-threading ...
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