Re: [PLUG] How the IRS is able to reverse engineer Assembly

IRS is a big mainframe user. On the mainframe, most code is being moved from assembly to Java. The move has little to do with technology and more about pricing models. In mainframes there are a couple of different types of processers. General Processors (or GPs) can be very expensive because organizations like IRS have to pay IBM for the workloads that run on GPs by the MSUs consumed. The altermative is to use zIIP engines which are specialty processors for specific workloads like java. These enginres are priced at a flat rate - or "all you can eat." Yes, in the mainframe world we call processors "engines".

On Thu, Jan 4, 2018 at 10:21 AM, prushik <prushik@gmail.com> wrote:

Sounds like a nightmare (the result, not the process).

From the article: "Java is the current standard" ... hope nobody actually believes that.

Sent from my device.

---- Original message ----
From: jvoris@axs2000.net
Sent: 01/04/2018 13:04:47
To: plug <plug@lists.phillylinux.org>
Subject: [PLUG] How the IRS is able to reverse engineer Assembly

This group loves to hear about old programming languages and hardware,
and a great tale of this was at the Legacy Code Rocks! website.

Tom Temin reports how the IRS was able to convert their Assembly programs
into Java code, but there was no budget and the brilliant minds left.

https://federalnewsradio.com/tom-temin-commentary/2018/01/irs-clutches-its-modernization-holy-grail

http://legacycode.rocks/issues/18?#start    has a slew of other
interesting articles, like how Apple will be releasing the OS code for
Lisa ( circa 1983 )

- John Voris
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