Tom Marchant wrote:
In a message dated 10/3/2007 9:39:30 A.M. Central Daylight Time,
[EMAIL PROTECTED] writes:
On the
first reference, the hardware will recognize an 0C4, which will be
handled by the OS on your behalf and RSM and ASM will get involved to
locate a page for you. Your program will NOT see this 0C4, unless in
the highly unlikely situation that there is no real storage available.
But YOU can see the 0C4 interrupt and the resumption of your program's
execution in a system trace.
Just to nit pick a little... It is not a 0C4, but a PIC 4. 0C4 is not an
interruption, but the abend code that MVS produces when it is unable to
resolve the program interruption.
And, to nit pick a bit more, PIC 0004 is a protection exception. That is
*not* the interrupt you normally see in the trace when accessing a page
in "first reference" state.
--
Edward E Jaffe
Phoenix Software International, Inc
5200 W Century Blvd, Suite 800
Los Angeles, CA 90045
310-338-0400 x318
[EMAIL PROTECTED]
http://www.phoenixsoftware.com/
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