A new way for add

&(&i) vs *(*i) in C

Is &(&i) valid in C?

No, I would not say so. we know the expression try to get an address of

an address of a variable, however, only after compiler time construction, we

could get a value for its address, for this exact time the compiler could not

return recognize the address of a new construct value in Compiler,

So it would print error.

Command less for checking multiple files

This semester I need to check a lot of txt file under linux, it's kind of bored to click on,

Then, one day, I noticed my instructor the way he did, Pretty neat, just a simple less command 

in Linux, it works in this way:

List of AMD CPU microarchitectures

• AMD K5 - AMD's first original microarchitecture. The K5 was based on the AMD Am29000 micro architecture with the addition of an x86 decoder. Although the design was similar in idea to a Pentium Pro, the actual performance was more like that of a Pentium.
• AMD K6 - The K6 was not based on the K5 and was instead based on the Nx686 processor that was being designed by NexGen when that company was bought by AMD. The K6 was generally pin-compatible with the Intel Pentium (unlike NexGen's existing processors).
• AMD K6-2 - An improved K6 with the addition of the 3DNow! SIMD instructions.

Help to build QEMU (upstream version) with Xen

Get the source

• Get Xen source (version 4.2 aka xen-unstable development version)
• Get QEMU upstream source from:
  • Recommended: xen-stable-0.15 qemu branch