Mainframe, MVS and zOS Discussion

Hi,

I know this is 2020 and there are not many jobs for assembler. But there had been some programs in our company which are written in assembler. They abend once in a while in production and becomes nightmare to solve it. I'd like to learn reading an assembler program and solving the abends for them. Could you please guide where can I learn assembler from? Any advice is appreciated.

Assembler is very tough language. And I think not many companies are using it, so there is no in learning it.

Google "learning hlasm" to find some resources. HLASM is the current IBM mainframe assembler and there are some facilities on the Internet for learning it.

Thanks for the guidance. I have started learning it again.

I am also reading about Hercules, will Hercules allow to practice assembler or do we need purchase assembler license to practice it on Hercules?

the free mvs family operating systems are pretty old,
but they will let You practice assembler basics and a bit more

take a look at http://wotho.ethz.ch/tk4-/

after download and unpack You will be up and running in just a few minutes
it does not have ISPF but the full screen editors are quite good anyway

Thanks giskard.

What can we use in place of ISPF in Hercules?

That link is very helpful, Thanks again.