Think of this like a JVM. Java compiles to intermediate code, which
then is translated to executable code by the runtime. Same idea, just
on a larger scale....
http://archive.midrange.com/rpg400-l/200305/msg00710.html
Did you see this on IBM's site?
http://www-03.ibm.com/servers/enable/site/porting/iseries/overview/overv
iew.html
Eric DeLong
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of McKown, John
Sent: Friday, December 12, 2008 10:05 AM
To: Midrange Systems Technical Discussion
Subject: Question on TIMI implementation.
I don't know if I understand the following paragraph that I got from
IBM's web site:
<quote>
Traditional System i applications run under a model known as IBM
Integrated Language Environment(r) (ILE). This model allows C/C++, RPG,
CL and COBOL applications to easily call functions from, and share data
with, each other through interaction that occurs at the TIMI level.
Above the TIMI, all programs compile to an intermediate form that is
automatically translated into actual hardware instructions by the SLIC
kernel prior to execution. ILE applications are not interpreted.
</quote>
To me, the last sentence is saying that the program compiled to the
TIMI. But when the program is loaded for execution, the TIMI
instructions are transparently converted (compiled) to pSeries
instructions and then that temporary copy of the program is actually run
"natively" (without using a emulator). As opposed to the program being
loaded for execution and a TIMI emulator in "firmware" then running the
program by reading each TIMI instruction and executing the necessary
pSeries instructions.
Hope my question makes sense.
John McKown
Systems Engineer IV
IT
Administrative Services Group
HealthMarkets(r)
Administrative Services Group
9151 Boulevard 26 * N. Richland Hills * TX 76010
(817) 255-3225 phone * (817)-961-6183 cell
john.mckown@xxxxxxxxxxxxxxxxx * www.HealthMarkets.com
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