[rescue] AS/400 question

vance at neurotica.com vance at neurotica.com
Thu Jun 5 17:23:03 CDT 2003

On Thu, 5 Jun 2003, Dave McGuire wrote:

> >>    I meant the kind of info that'd be required to port a free
> >> OS...architecture specs, hardware FAQs, how to get one from a surplus
> >> house and get it running, etc.  IBM will *never* publish info like
> >> that.
> >
> > IBM publishes the assembler programming guide for these machines.
> > That should help, no?  It contains info on the instruction set,
> > including formats and indirection, firmware specs, and stuff like
> > that.
>    They do?  Why did the Linux guys have such a hard time finding it?
> They eventually gave up, from what I read.

Just so we're on the same page, I'm talking about the RISC ones, not the

You just have to pay for it.  IBM publishing sells this kind of stuff for
writing commercial software on larger systems.  I have all the ones from
S/370 (original) all the way to z/Arch.  They're cheap too.

Peace...  Sridhar

More information about the rescue mailing list