Windows xp professional x64 iso
This may lead to the need for library developers to provide both 32- and 64-bit binary versions of their libraries. A 64-bit application cannot link against a 32-bit library (DLL) and similarly a 32-bit application cannot link against a 64-bit library.
#Windows xp professional x64 iso code
As a result, AMD64 microprocessors suffer no performance loss when executing 32-bit Windows applications, whereas IA-64 implementations experience noticeable performance loss.Īlthough 32-bit applications can be run transparently, the mixing of the two types of code within the same process is not allowed. However, on the IA-64 architecture, WOW64 was required to translate 32-bit x86 instructions into their 64-bit IA-64 equivalents which in some cases were implemented in quite different ways so that the processor could execute them.
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Since the AMD64 architecture includes hardware-level support for 32-bit instructions, WOW64 simply switches the process between 32- and 64-bit modes. It was first employed in Windows XP 64-bit Edition, but then reused for the “圆4 Editions” of Windows XP and Windows Server 2003. Windows XP 圆4 Edition uses a technology named WOW64, which permits the execution of 32-bit x86 applications.
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For 64-bit Windows for Itanium systems, see Windows XP 64-bit Edition.