Now, this is silly!
Pure Python library for accessing information about x86 processors by querying the CPUID instruction. Well, not exactly pure Python...
It works by allocating a small piece of virtual memory, copying a raw x86 function to that memory, giving the memory execute permissions and then calling the memory as a function. The injected function executes the CPUID instruction and copies the result back to a ctypes.Structure where is can be read by Python.
It should work fine on both 32 and 64 bit versions of Windows and Linux running x86 processors. Apple OS X and other BSD systems should also work, not tested though...
For poops and giggles. Plus, having access to a low-level feature without having to compile a C wrapper is pretty neat.
I wanted the output to be compatible with the GNU cpuid, so that I could
run the script (without even downloading it) on a remote machine and pipe
the output into cpuid -f.
Getting info with eax=0:
import cpuid
q = cpuid.CPUID()
eax, ebx, ecx, edx = q(0)
Running the files:
$ python cpuid.py
CPU:
0x00000000 0x00: eax=0x00000010 ebx=0x68747541 ecx=0x444d4163 edx=0x69746e65
0x00000001 0x00: eax=0x00a20f12 ebx=0x0a100800 ecx=0x7ef8320b edx=0x178bfbff
0x00000002 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000003 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000004 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000005 0x00: eax=0x00000040 ebx=0x00000040 ecx=0x00000003 edx=0x00000011
0x00000006 0x00: eax=0x00000004 ebx=0x00000000 ecx=0x00000001 edx=0x00000000
0x00000007 0x00: eax=0x00000000 ebx=0x219c97a9 ecx=0x0040068c edx=0x00000010
0x00000008 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x00000009 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x0000000a 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x0000000b 0x00: eax=0x00000001 ebx=0x00000002 ecx=0x00000100 edx=0x00000006
0x0000000b 0x01: eax=0x00000004 ebx=0x00000010 ecx=0x00000201 edx=0x0000000e
0x0000000b 0x02: eax=0x00000000 ebx=0x00000000 ecx=0x00000002 edx=0x0000000a
0x0000000c 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x0000000d 0x00: eax=0x00000207 ebx=0x00000340 ecx=0x00000988 edx=0x00000000
0x0000000d 0x01: eax=0x0000000f ebx=0x00000350 ecx=0x00001800 edx=0x00000000
0x0000000d 0x02: eax=0x00000100 ebx=0x00000240 ecx=0x00000000 edx=0x00000000
0x0000000d 0x09: eax=0x00000008 ebx=0x00000980 ecx=0x00000000 edx=0x00000000
0x0000000d 0x0b: eax=0x00000010 ebx=0x00000000 ecx=0x00000001 edx=0x00000000
0x0000000d 0x0c: eax=0x00000018 ebx=0x00000000 ecx=0x00000001 edx=0x00000000
0x0000000e 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x0000000f 0x00: eax=0x00000000 ebx=0x000000ff ecx=0x00000000 edx=0x00000002
0x0000000f 0x01: eax=0x00000000 ebx=0x00000040 ecx=0x000000ff edx=0x00000007
0x00000010 0x00: eax=0x00000000 ebx=0x00000002 ecx=0x00000000 edx=0x00000000
0x00000010 0x01: eax=0x0000000f ebx=0x00000000 ecx=0x00000004 edx=0x0000000f
0x20000000 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80000000 0x00: eax=0x80000023 ebx=0x68747541 ecx=0x444d4163 edx=0x69746e65
0x80000001 0x00: eax=0x00a20f12 ebx=0x20000000 ecx=0x75c237ff edx=0x2fd3fbff
0x80000002 0x00: eax=0x20444d41 ebx=0x657a7952 ecx=0x2037206e edx=0x30303835
0x80000003 0x00: eax=0x2d382058 ebx=0x65726f43 ecx=0x6f725020 edx=0x73736563
0x80000004 0x00: eax=0x2020726f ebx=0x20202020 ecx=0x20202020 edx=0x00202020
0x80000005 0x00: eax=0xff40ff40 ebx=0xff40ff40 ecx=0x20080140 edx=0x20080140
0x80000006 0x00: eax=0x48002200 ebx=0x68004200 ecx=0x02006140 edx=0x01009140
0x80000007 0x00: eax=0x00000000 ebx=0x0000003b ecx=0x00000000 edx=0x00006799
0x80000008 0x00: eax=0x00003030 ebx=0x111ef657 ecx=0x0000400f edx=0x00010000
0x80000009 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x8000000a 0x00: eax=0x00000001 ebx=0x00008000 ecx=0x00000000 edx=0x101bbcff
0x8000000b 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x8000000c 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x8000000d 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x8000000e 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x8000000f 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80000010 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80000011 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80000012 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80000013 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80000014 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80000015 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80000016 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80000017 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80000018 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80000019 0x00: eax=0xf040f040 ebx=0xf0400000 ecx=0x00000000 edx=0x00000000
0x8000001a 0x00: eax=0x00000006 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x8000001b 0x00: eax=0x000003ff ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x8000001c 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x8000001d 0x00: eax=0x00004121 ebx=0x01c0003f ecx=0x0000003f edx=0x00000000
0x8000001d 0x01: eax=0x00004122 ebx=0x01c0003f ecx=0x0000003f edx=0x00000000
0x8000001d 0x02: eax=0x00004143 ebx=0x01c0003f ecx=0x000003ff edx=0x00000002
0x8000001d 0x03: eax=0x0003c163 ebx=0x03c0003f ecx=0x00007fff edx=0x00000001
0x8000001e 0x00: eax=0x00000002 ebx=0x00000101 ecx=0x00000000 edx=0x00000000
0x8000001f 0x00: eax=0x0001780f ebx=0x00000173 ecx=0x000001fd edx=0x00000001
0x80000020 0x00: eax=0x00000000 ebx=0x00000002 ecx=0x00000000 edx=0x00000000
0x80000020 0x01: eax=0x0000000b ebx=0x00000000 ecx=0x00000000 edx=0x0000000f
0x80000021 0x00: eax=0x0000004d ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80000022 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80000023 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0x80860000 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
0xc0000000 0x00: eax=0x00000000 ebx=0x00000000 ecx=0x00000000 edx=0x00000000
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