[Issue 19276] Document accurately calling conventions and demo them in inline asm

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19276

kinke at gmx.net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kinke at gmx.net

--- Comment #1 from kinke at gmx.net ---
The System V ABI (used on all non-Windows x86_64 platforms AFAIK) is way too
complex for a Wiki page. See https://www.uclibc.org/docs/psABI-x86_64.pdf.

--