RE: Memory control

Is there a freeware/shareware/utility to create a program flow diagram
for CL/RPG programs?

Thanks

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Walden H. Leverich
Sent: Wednesday, September 28, 2005 10:05 AM
To: RPG programming on the AS400 / iSeries
Subject: RE: Memory control

>And is it possible to
>extend that into the program's executable code? 

Generally speaking, no. Data pages and program pages are well defined
from eachother. I would imagine you'd simply get a mrmory fault if you
attempted to change a code page.

>Can you move data to a
>procedure pointer?

And keep the pointer valid? Not sure, don't think so. Then again, I have
heard of someone running PPC machine instructions out of a user space,
so at that point it gets really interesting.

>Including OS400 itself?  Using just HLL programs?  Isn't Leif's book
mostly
>about MI?

Sure you can mod OS400 data -- but be careful! Changing the global SEPT
is an example. Since most MI opcodes can be accessed from RPG I would
think you might be able to do it in RPG, however, why don't you consider
MI an HLL?

-Walden

------------
Walden H Leverich III
Tech Software
(516) 627-3800 x11
WaldenL@xxxxxxxxxxxxxxx
http://www.TechSoftInc.com

Quiquid latine dictum sit altum viditur.
(Whatever is said in Latin seems profound.)