[ Thanks to LinucksGirl for this link.
“Unlike other languages, assembly programming involves
understanding the processor architecture of the machine that is
being programmed. Assembly programs are not at all portable and are
often cumbersome to maintain and understand, and can often contain
a large number of lines of code. But with these limitations comes
the advantage of speed and size of the runtime binary that executes
on that machine.
“Though much information is already available on assembly level
programming on Linux, this article aims to more specifically show
the differences between syntaxes in a way that will help you more
easily convert from one flavor of assembly to the another. The
article evolved from my own quest to improve at this