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Posts: #64bit

Posts: # 64bit

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#64bit
Aug 14 2012
Can I port code to a 64-bit platform under a 32-bit platform?
Andrey Karpov
Yes, you can do this if you use a cross-compiler that creates a native code for a platform different from that on which your code is...
...
#64bit
Aug 14 2012
What is the POINTER_32 macro?
Andrey Karpov
The POINTER_32 macro is a standard Windows SDK macro usually declared in header files BaseTsd.h, Ntdef.h or...
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#64bit
Aug 14 2012
Why do 64-bit operating systems use only 48-bit addresses for addressing?
Andrey Karpov
Addresses used in a program, i.e. pointer values, are so called "virtual addresses". The processor contains a small amount of ultra-fast associative memory that stores conversions of several...
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#Cpp #64bit
Mar 22 2012
How can a 32-bit program detect that it is launched in a 64-bit Windows?
Andrey Karpov
64-bit operating systems of the Windows family can execute 32-bit programs with the help of the WoW64 (Windows on Windows 64) subsystem that emulates the 32-bit environment due to an additional...
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#64bit
Mar 11 2012
How can I find out in Win64 how many processor cores there are in the system?
Andrey Karpov
To get information about the number of processor cores in the system, you may use the Windows environment variable NUMBER_OF_PROCESSORS. Below is a fragment of C++ code where the...
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#Cpp #64bit
Mar 11 2012
The warnings C4311 and C4312 generated by the compiler when using the /Wp64 switch
Andrey Karpov
C4311 and C4312 are ones of the most frequent warnings generated by the compiler for 32-bit code not adapted for migration to 64-bit platforms. They are generated only when you use the /Wp64...
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#64bit
Jan 23 2012
Where is the 64-bit compiler in Visual Studio?
Andrey Karpov
There are a lot of questions concerning the problem of being unable to create the 64-bit configuration of a project in Visual Studio, or, compile an existing 64-bit project. Almost always...
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#64bit
Jan 23 2012
How much memory can an application access in Win32 and Win64?
Andrey Karpov
When developing a software product for a Windows-family operating system, you must keep in mind the restrictions imposed on sizes of data a program can declare and...
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#Cpp #64bit
Jan 23 2012
Confusion of WPARAM with UINT, and LPARAM with LONG
Andrey Karpov
A great deal of compilation errors occurring when trying to recompile a 32-bit Windows application for 64-bit systems is related to inccorect function arguments. You may often see that in user...
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#64bit
Jan 23 2012
Why does WoW64 use register and file system redirection?
Andrey Karpov
So, why does WoW64 employ the mechanism of redirecting the register and file system instead of simply assigning the obsolete register keys and "%windir%\system32" to 32-bit applications and...
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