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- Message-ID: <JCHBN.930106.142712.RC0@CUVMB.CC.COLUMBIA.EDU>
- Newsgroups: bit.listserv.vm-util
- Date: Wed, 6 Jan 1993 14:27:00 EST
- Sender: VM Utilities Discussion List <VM-UTIL@OHSTVMA.BITNET>
- From: "John F. Chandler" <JCHBN@CUVMB.BITNET>
- Subject: Re: XCOMPARE and SPRCMP
- In-Reply-To: SBROOKS@PSUHMC.BITNET message of Wed, 6 Jan 1993 10:56:00 EST
- Lines: 25
-
- > Does anyone know of a version of XCOMPARE or SPRCMP which works in
- > ESA? (Currently these only work for me in 370 machine mode but not
- > in XC machine mode.)
-
- I think the problem in EC mode is the SSM instruction that enables
- interrupts. I don't think it is necessary anymore, but I'm not sure
- what level of CMS made it unnecessary. There are two ways to patch
- SPRCMP: directly in the executable and by the source. The first is:
- XEDIT SPRCMP MODULE, SET ZONE 5201 5201, ALTER 81 01 *, and FILE.
- If SSM is the only problem, that should solve it. There may, however,
- be other differences in the I/O that would be fixed up by re-assembling
- under CMS Level 7, in which case, the SSM can be removed by the following
- update (indented one column to avoid "." hassles):
-
- ./ * NOSSM - Avoid incompatibility with XA
- ./ R 00750000 00751000 $ 750000 700 01/06/93 14:14:55
- PUTDET DS 0H @NOSSM
- *** SSM =X'81' BRIEFLY ENABLE INTERRUPTS @NOSSM
- *** SSM =X'00' AND DISABLE AGAIN @NOSSM
- ./ R 00776000 00777000 $ 776000 700 01/06/93 14:14:55
- PUT DS 0H @NOSSM
- *** SSM =X'81' BRIEFLY ENABLE INTERRUPTS @NOSSM
- *** SSM =X'00' AND DISABLE AGAIN @NOSSM
-
- John
-