Adding asm examples

[Julio Merino <jmmv%julipedia.org@localhost>]

Hello,

I would like to add some trivial, heavily-commented assembly code 
examples to /usr/share/examples/asm/.  The goal of these examples would 
be to illustrate platform-specific stuff rather than teach the assembly 
language itself (but this would be a side-effect anyway).  For instance, 
a "hello world" example would show how to craft an ELF file and how to 
perform a couple of system calls according to the platform conventions. 
 There could be another example showing the C->ASM call protocol.

The reason I'm proposing this is because, out of pure curiosity, I've 
started learning PowerPC assembly and such examples could come very 
handy.  (Books teach you the general assembly language but not how that 
is put in practice in a specific platform/assembler... and 'gas' is 
quite... special.)  I found some sample code in the old wiki, but it 
would be much more useful if it were in the tree.

These teeny-tiny examples would come with a Makefile ready for use and 
some trivial tests to ensure that the sample code builds and runs on the 
platforms that implement the specific tests.

Comments / objections?

Thanks!