Subtracting TOD-CLOCK values to get duration.
Hi, I need to subtract two TOD times to find elapsed time. Currently I convert the two TOD times with STCKCONV and determine the elaped time individually, and then compute the difference. This works. However I thought I could optimize the conversion, a little bit and I was wondering why not subtract the two TOD times to begin with. As I understand TOD time is the number of mic seconds elapsed since midnight of 1900-01-01. So when I subtract one TOD value from another the duration must be in micro seconds. For example, TOD1 is X'C0E608EF7409002E' ===>2007196, 16.59.58,745744 TOD2 is X'C1E608EF7409002E' > 2008035, 7.43.04.790160 If I subtract the two TOD values, it is binary as in (x'0100'). If I convert to a packed decimal value, I get a decimal value of 72057594037927936. (sign bit not shown here) Now I can't seem to figure the actual elapsed time based on the derived micro seconds. If I just treat the above value as a mic seconds then I end up with 2284.93 years which is gloriously incorrect while the actual elapsed days are 204 days ignoring the time part. I am sure I am missing something here. Can someone please help. Regards, Ludmil -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: Calling a AMODE 31 program from AMODE 64
I didn't expect that it would trigger so much response. I am just beginning to learn to code using AMODE 64 and the example I had initially presented doesn't necessarily represent any real program. What I wanted to do was to call a AMODE31 from AMODE64 and the list did provide too many thoughts / suggestions. Thanks. Ludmil -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Calling a AMODE 31 program from AMODE 64
Can someone please provide me a sample of how to call a AMODE 31 program (ASM) from a AMODE 64 program (ASM) and pass parameters and get return values. I am able to BASR to AMODE 31 and execute it but unable to use R1 for passing parm address. I get a protection exception. Thanks, Ludmila -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
Re: Calling a AMODE 31 program from AMODE 64
Thanks for the quick response. OK here is my code. I have two simple starter programs, PGM64A in AMODE 64 and PGM A in AMODE 31 I need to pass a field CRITDTE to PGMA and return a return value from PGMA. The code is below. PGM64A CSECT PGM64A AMODE 64 PGM64A RMODE 31 BAKR 14,0 LARL13,SAVEAREA LARL12,PGM64A USING PGM64A,12 LGHI15,0 LLGF1,CRITDTE LLGT15,=V(PGMA) SAM31 BASR14,15 PR, CRITDTE DS CL8 SAVEAREA DS 0D'0',F'0',C'F1SA' LTORG ENDPGM64A. I can BASR to PGMA no problem. Every time I try to modify the inbound parm, I get S0C4 / Reson 11. I am not sure where I am coding incorrectly. Following a few other posts I tried difft combinations of Loaing parm including LA, LLGT but it is not working. Since if I don't alter the inbound block it runs, I am making some glorious mistake on passing the parm. I cant seem to figure out,. pgmA is a vsery simple subroutine that only has a L3,0(1) LA 5,UPDTXT MVC 0(7,3),0(5) ===>Receive inbound value in Reg 3 and update with the value in updtxt besides the std prolog and epilog. Regards, Ludmil -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
