Was working on it and then for the very first "hello world" it talked about comptibility. Obviously, when PC370 was written it was written to practice Assembler on PC, much before even 32-bit OS was introduced. Heck, we re on 64-bit now -- any turn around for 64-bit wondows platform/s, to make use of this book and PC370?
I have 2 or 3 of the books in that link as well as Bill Qualls' book. Not one of them mentions how to set the return code (set R15 to required value) which has caused a few queries in the forum in the past.
Joined: 22 Apr 2006 Posts: 6258 Location: Mumbai, India
Thanks for stopping by Nic. I'm not someone who has very good hand on Assembler, I remember OPCODEs which I used during college days but never worked for it, on it, professionally, so curious to learn more about it, though it's not going to feed me per my current role.
I'll keep R15 thing in mind, however, I believe there is lot more to learn before I reach to that stage.
Well, Bill's book is the only assembler book that I have managed to read from front to back. It is reporting program based - no system utility stuff. The fact that it came with PC370 was not an inducement to me as I already had that and it does have its limitations - but I am too much of a tyro to really know what those are. The 'new' version of PC370 - z390 - seems a much better (and more up-to-date) product; if a little 'odd' at first.