--- Alan Ackerman <[EMAIL PROTECTED]>
wrote:

> (So I'm 3 weeks behind in reading this? So shoot
> me!)
> 

I am more like 10 years behind....

> When it came time to  write compilers for CMS, the
> decision was made NOT to write native CMS 
> compilers, but instead to write OS Simulation so the
> compilers could be ported over with only 
> small "glue" routines. This got CMS lots of
> compilers it might not have otherwise had. You may 
> find that an amazing decision, but given that
> decision, I think what you are complaining about is 
> not at even surprising.
> 

It was more of a query than a complaint. The problem I
actually have is that if I use SVC202 (or its modern
equivalent, see I am 10 years behind on some things)
and the "thing" that is run as a result of the SVC202
is another OS program, when it returns I may have
"issues". I am now sorting these out, for example by
using "SET STORECLR ENDSVC" and choosing DD names more
carefully, but it is a bit fiddly ...   

> Over time,  some CMS-friendly features,  such as the
> ability code CMS filenames crept in, but 
> basically, you still have OS compilers. (Some people
> say these improvements were a mistake.)
> 

Perhaps it would have been better to update the OS
emulation, so the tweaks were not needed...

> On Mon, 27 Nov 2006 15:58:41 -0500, Alan Altmark
> <[EMAIL PROTECTED]> wrote:
> 
> >On Monday, 11/27/2006 at 12:31 PST, Dave Wade
> <[EMAIL PROTECTED]> wrote:
> >> Looking through the IBM C manuals I can find, it
> >> seems amazing to me that the only way to access
> the
> >> above devices is via OS emulation. Any one find
> this a
> >> pain. If so what have they done? Or have I missed
> >> something?
> >
> >You haven't missed anything.  LE I/O goes through
> the OS READ/WRITE
> >interface.  That means FILEDEF.
> >
> >You're probably looking for char/block special
> files via /dev, e.g.?  Stop
> >looking; they aren't there.
> >
> >:-(
> >
> >Alan Altmark
> >z/VM Development
> >IBM Endicott
>
>===========================================================
> ==============
> 


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