Rick Fochtman wrote:
----------------------<snip>---------------------
On 4/24/2007 12:29 PM, Rick Fochtman wrote:
Before SVC-99, we still had SVC-34, but the setup was somewhat more
complex and far less forgiving of errors.
I suspect you meant SVC 32, not SVC 34.
----------------------<unsnip>----------------------------
You're right, Walt. Good catch, and thanks for correcting my sometimes
faulty memory. :-)
However, IIRC SVC 32 only did DASDM space allocation. It did
not build SIOT's, JFCB's, mark UCB's as allocated, etc. I think
SVC 99 was added to MVT (maybe OS/360 in general) just for TSO.
Initially it was not a generally availble interface to allocation,
but intended for TSO's use only.
--
Richard
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