I have been reading Sharon Tuggle's book "Assembler Language
Programming: Systems/360 and 370" and it makes use of a macro SNAP on
OS (MVS etc) which, from what I can tell, produces some kind of dump
output of the program state.
This does not seem to be defined while assembling on CMS. Is there an
equivalent? Or do I need to do something to include a specific macro
library?
