Mainframe assembly language - Journal of Omnifarious
Mar. 7th, 2006
03:33 pm - Mainframe assembly language
z/OS, it's the only platform I know of (aside from things like wristwatches or pacemakers) where assembly language is taken seriously. Seriously enough that today I watched a demo of a really nice looking assembly level debugger called 'XDC'.
It was a really nice assembly level debugger. It had all kinds of interesting features that I would very much like if I were to do large-scale assembly programming, Even more amusing, it had basically no ability at all to do source level debugging of higher level languages. I don't know if tools to do this even exist on z/OS.
Processor speeds on z/OS are still measured in the 10s of MIPS. So maybe it makes sense to still care about assembly language. But I somehow doubt it.
All in all, z/OS is a very bizarre platform for any number of reasons. And it's kind of interesting to be learning so much about it.