On 7/1/2014 5:13 AM, Shane Ginnane wrote:
Modern kids ....   ;)
Peter I love your insights, but this was (historically) royally fucked up..
When I started looking at (64-bit) object allocation in OS/390 2.10 there was 
no doco, let alone migration assistance. The ISV monitors were scrabbling 
(unsuccessfully) to catch up, and even IPCS was adrift in its mappings.
There was no Programming Extended Addressability Guide - nothing. Nor was there 
any sharing of such objects.

For the record, OS/390 2.10 did not yet support 64-bit virtual. That came later in z/OS 1.2.

CVTZOS_010200 EQU X'10'      z/OS V1R2 @MQA
CVTZOS_V1R2   EQU X'10'      z/OS V1R2 @MQA
CVTH7705 EQU   X'10'         HBB7705 @MQA
CVTV64   EQU   X'10'         64-bit virtual services are present. @MQA
*                            You should ensure FLCARCH (in IHAPSA) is
*                            non-zero before using

--
Edward E Jaffe
Phoenix Software International, Inc
831 Parkview Drive North
El Segundo, CA 90245
http://www.phoenixsoftware.com/

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