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Which CPU information this code is trying to retrieve. This code is part of a larger package. I am not a Python programmer, and I want to convert this code to C#.
from ctypes import c_uint, create_string_buffer, CFUNCTYPE, addressof
CPUID = create_string_buffer("\x53\x31\xc0\x40\x0f\xa2\x5b\xc3")
cpuinfo = CFUNCTYPE(c_uint)(addressof(CPUID))
print cpuinfo()
If you are a Python programmer and knows what this code is doing, it will be a great help for me.
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A shortcut way to copy a list or a string is to use the slice operator [:] . This will make a shallow copy of the original list keeping all object references the same in the copied list.
string[::2] reads “default start index, default stop index, step size is two—take every second element”.
In Python strings, the backslash "\" is a special character, also called the "escape" character. It is used in representing certain whitespace characters: "\t" is a tab, "\n" is a newline, and "\r" is a carriage return.
It acts as an indicator in the format method that if you want it to be replaced by the first parameter(index zero) of format. Example : print(42+261={0}.format(303)) Here, {0} will be replaced by 303.
It executes the following machine code:
push bx
xor ax, ax
inc ax
cpuid
pop bx
retn
Basically it calls CPUID instruction of the CPU in order to get information about the CPU. Since EAX=1 it gets the processor info and feature bits. The result 32-bit integer is then displayed on the screen, see the wikipedia article or this page to decode the result.
EDIT: Since that's what you're looking for, here's an excellent article about invoking CPUID in a .NET/C# environment (sort of, with P/Invoke)
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