Subject: Re: Linux (YDL) vs. Linux (Intel flavours)
From: John Schmidt (jas@netbrick.com)
Date: Thu Mar 14 2002 - 08:55:07 MST
On Thursday 14 March 2002 08:41 am, you wrote:
>
>
> Then why do x86 binaries not work on ppc without a recompile.
The instructions that are found in x86 binaries are unique to the x86
processor. Likewise the instructions found in the ppc binaries are unique to
the ppc processor. The compiler turns the generic source code (written in c,
c++, fortran, etc) into architecture specific instructions, hence you end up
with binaries that will only work on a specific architecture. ppc machines
use a risc chip and x86 machines have cisc chips. Each chip has different
set of instructions that it implements to do a generic type of operation
(that is written in a high level language). This is grossly simplified with
certain liberties taken, but hopefully you get the picture.
John
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