I am also confused - The only interface to 64 bit virtual that I know of is
media manager code for VSAM - as used by IMS or DB2.

All the rest of the access methods support 31bit virtual with 64 bit real
addresses.  This means no more thrashing around in Z/os looking for a below
the line real buffer for IO.

The other method for 64 bit virtual IO is EXCP or STARTIO because both
methods allow you to translate the address to 64bit real address. at which
point it doesn't matter whether the virtual address was 64 or 31.

Mike

On 5/27/06, Chaye Wala <[EMAIL PROTECTED]> wrote:

This is not a flame - please - all these 64 bit supporters. Can you please
name a single access method which can do direct asynchromous or
synchronous
I/O to a 64 bit address space directly from a device using device
independent code. Something similar to DIV.  A pointer to a sample code
will
be great. I hope I am not asking too much?


--
Mike

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