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UCPUINFO

ucpuinfo reads various bits of information about the current execution environment and displays it. It only supports IA-32 and thus fetches information visible to user processes regarding:

  • segments
  • segment descriptors
  • machine status word
  • descriptor tables

Compiling / Using

ucpuinfo has a Makefile that works with cygwin, MacOS, Linux, FreeBSD, and OpenBSD. Assuming you have a C compiler and "make" installed:

# make

The doesn't have any command line arguments, it just spits information out.

TODO

There are a few things left on the old TODO list:

  • CPUID subleaves for Intel
  • CPUID caveats for AMD and others?
  • initial state of floating point
  • initial state of SSE/SSE2/etc