Re: which memory address space?

Jud McCranie wrote: 
On Sun, 17 Jul 2005 22:28:11 +0200, Andreas Koch
<mail@xxxxxxxxxxxxxxx> wrote:


Try it: start the program and disconnect the cable. Does it still run? 


Ehm, did you try that?
It should stop to run, because windows loads EXEs partially, and
fails if the EXE gets inaccessible while the app is running.
At least thats the way it worked with floppys ;-)



To my surprise, that seems to be true.  (I thought it loaded the whole
EXE.)  I wrote a 1.2MB EXE to a thumb drive, unplugged the drive,
rebooted (to clear out any cache, etc), plugged in the drive, and
executed the program from it.  Then I unplugged the drive after the
main screen came up.  Then many of the items on the menu would not
execute, they would say "error reading ... external error C0000006".
It would be reading things like an EditMask, etc.

Rebooting wasn't necessary - I tried it a few times just unplugging
the thumb drive, and then not unplugging the drive.  Results were
consistent with it reading parts of the EXE as needed.

---
Replace you know what by j to email

that is because windows only reads in the EXE part, it leaves the
resource on file and only accesses it as it needs it.
 so yes, you need to stay connected to the source of the file, but
every thing happens at the point of where you are working.


--
Real Programmers Do things like this.
http://webpages.charter.net/jamie_5

.

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