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What does system TIME macro return ?

 
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suresh veluchamy

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Joined: 17 Jul 2005
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Location: New York

PostPosted: Fri Mar 02, 2007 2:37 am    Post subject: What does system TIME macro return ?
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It returns a double value.. Any idea how the value is calculated ? I guess, this is in micro-seconds. Please clarify...
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dick scherrer

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Joined: 23 Nov 2006
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PostPosted: Fri Mar 02, 2007 4:10 am    Post subject:
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Hello,

Maybe this will help. . .

All references to time of day use the time-of-day (TOD) clock, a 64-bit binary counter. In the basic form, the TOD clock is incremented by adding a one in bit position 51 every microsecond.

If you'd like more detail, search the IBM documentation library for a manual called "Principles of Operations". No assembler programmer should be without one icon_smile.gif
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suresh veluchamy

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PostPosted: Fri Mar 02, 2007 7:58 am    Post subject: Re: What does system TIME macro return ?
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Thanks d.sch..... that surely helps...

I searched for that 'principles of operations' manual and did not hit one downloadable one.... do u have link where i can download it ?

I have some info from
http://publibfp.boulder.ibm.com/cgi-bin/bookmgr/BOOKS/dz9zr002/4.6.1.1?SHELF=&DT=20030424140649&CASE=

but not a PDF kind of stuff....

Thanks
Suresh
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dick scherrer

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Joined: 23 Nov 2006
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PostPosted: Fri Mar 02, 2007 8:16 am    Post subject:
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Hi Suresh,

You will be able to find some material at
http://publibz.boulder.ibm.com/bookmgr_OS390/libraryserver/zosv1r7/
and
http://publibfp.boulder.ibm.com/cgi-bin/bookmgr/download/A2278324.pdf%3fDT=20060213202835%26XKS=dz9zbk05

If those links won't work for you, search for +DZ9ZBK05 in Yahoo (it didn't work in Google).
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