I miss dump reading on reams of green-bar paper.

The dump reading was done with a cardboard pamphlet that listed the machine instructions, arguments, address offsets.

You'd find the hex abend on the greenbar, mark it up with a pencil, and use the machine instructions to figure out what went wrong (and the record that caused it).

In my business (banking) this was done sometime around 2 a.m. after you got called back to work by the night operators.

Ah, the good old days.