Access CPU register

[ludi0423]

Hello, Could anyone tell me how to access the CPU register in C? Thanks

[_Superman_]

In Windows and x86, you can use the __asm keyword to write inline assembly and then access the registers by its name (eax, ebx etc.). __asm is not supported in x64.

«_Superman_» I love work. It gives me something to do between weekends.
Microsoft MVP (Visual C++)

[ludi0423]

Thanks, Superman. And I wonder whether the keyword "register" is possible to be used to specify a register in the processor? :)

[_Superman_]

No. The register keyword is used as a hint to the compiler to store the variable into a general purpose register instead of a memory location.

«_Superman_» I love work. It gives me something to do between weekends.
Microsoft MVP (Visual C++)

[Rajesh R Subramanian]

There's no guarantee that the variable will be put into a register at all, so leave alone a "specific" register.

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