Orchid XP v7 <voi### [at] devnull> wrote:
> Fair enough, but how exactly does it work under the covers? As in, how 
> does it ultimately find the address of the code you want to call?

  AFAIK the system libraries perform kernel calls (in both Windows and
Linux). Basically the kernel knows the library and accepts its calls
(while it's not possible to do it directly from user code). A kernel
function call is probably little more than a 'call' machine code to
a certain address in the kernel space. A 'call' machine code is more or
less equivalent to 'gosub' in BASIC. (The CPU can be instructed to allow
or disallow such calls depending on what code is attempting to do it.)

-- 
                                                          - Warp

Post a reply to this message