On Tue, 16 Dec 2008 14:28:53 -0600, Patrick O'Keefe <patrick.oke...@wamu.net> wrote:
>On Tue, 16 Dec 2008 10:47:29 -0800, Scott Ford ><scott_j_f...@yahoo.com> wrote: > >>... source code and PLMs to understand the workings of a lot of >>the VM and MVS components. >>... > >PLMs. <sigh> > >IBM's promise to improve the doc included getting rid of PLMs. That >way there wasn't as much information to go obsolete. We are so >much off now without all that confusing (and occassionally incorrect) >detail. We should all be happy. I guess. > >Pat O'Keefe A bit off, but has anybody else here looked at the "i" system (nee AS/400)? You want to talk about OCO! It has some really interesting capabilities. But it has NO way to write anything in assembler. The OS is basically divided in two. The "high level" part is called OS/400 (i5/OS). It is written at the MI (Machine Independent) level. The "low level" part is called the SLIC (System Licensed Internal Code). None of this code is ever shown outside of the AS/400 development lab. You cannot even write your own language! Because you cannot create a "program object". And something can be executed only if it is marked as a "program object". This is not a system for bits-n-bytes techies! You simply cannot get to the bits-n-bytes level. -- John ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
