RE: Re: creating DASD

> -----Original Message-----
> From: [email protected] 
> [mailto:[email protected]] On Behalf Of mstramba2000
> Sent: 07 August 2010 17:43
> To: [email protected]
> Subject: [H390-VM] Re: creating DASD
> 
> 
> 
> 
> --- In [email protected], "Dave Wade" <g4ugm@...> wrote:
> > > >(watch out for -11)
> > > 
> > > What does that mean ?
> > 
> > Different models of device. So 3330 come as -1 and -11 and 
> I seem to 
> > remember there rules on which can be mounted on what..
> 
> Ok, gotcha now, (in the dasdinit devtype-model)
> 
>  
> > > > So you can actually re-assemble IFOX on VM using the 
> MACLIBS while
> > > > they are still on the OS Volumes.
> > > 
> > > Using the CMS assembler ?
> > > 
> > 
> > Well the "CMS" assembler is IFOX running under MVT/OS 
> emulation., so 
> > its both the MVS and the CMS assembler...
> 
> Hmm, another interesting "factoid" ;)
> 
> I didn't know CMS had anything in common with the other IBM OS's.

It has lots in common with the other OS's. It can run both DOS and OS/MVT
programs. (Actually any of the 32 bit VMs can run MVS and MVS/XA programs as
well) Most of the compilers are the OS compilers with wrapper routines that
take the CMS command lines and build an appropriate environment for the
program. And whilst CMS MODULE files have a different format to OS Load
Libraries the LOAD command does expect MVS TEXT files and understands many
of the Linkage Editor options. However it also has many differences. The
base code was as far as I know all written from scratch. Its only single
threaded, single user (CP sorts the other issues out). Whilst the modern
XEDIT is similar to the MVS ISPF/PDF editor its not the same.

Some code started out life in CMS. The REXX in MVS is taken from CMS. The
original MVCS TCP/IP was a port of the VM product. IUCV was added to MVS
from VM so that TCP/IP could be ported across.

Quite a mix really...

> 
> Mike
> 

Dave