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yadav2005
Intermediate
Joined: 10 Jan 2005
Posts: 348
Topics: 144
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 Posted: Thu Nov 15, 2007 4:00 pm Post subject: how to interpret binary values |
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Members,
I have a dataset when see in browse mode:
| Code: |
----+
.. ..
.. ..
.. ..
.. ..
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When i put Hex on
| Code: |
.. ..
00400
01001
-----
.. ..
004FF
020FF
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I am reading this file into a program , i want to insert / override equivalent of binary 2 to be inserted in cols 4 - 5 for the first record ,basically it is a binary data PIC S9(04) COMP which takes 2 bytes , can somebody help me ? Also how can i interpret the Binary values stored in 2 bytes in pos 4 -5 to what exactly is the value ? |
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kolusu
Site Admin
Joined: 26 Nov 2002
Posts: 12376
Topics: 75
Location: San Jose
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| Posted: Thu Nov 15, 2007 4:41 pm Post subject: |
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yadav2005,
You can use the following DFSORT job to view the contents of the binary values.
If you have both negative/positive values then use FI format and if you are sure that you only have positive values then use BI format
| Code: |
//STEP0100 EXEC PGM=SORT
//SYSOUT DD SYSOUT=*
//SORTIN DD DSN=YOUR BINARY INPUT FILE,
// DISP=SHR
//SORTOUT DD SYSOUT=*
//SYSIN DD *
SORT FIELDS=COPY
OUTREC FIELDS=(p,m,FI,M26)
//*
//* p = position of the binary field in the file
//* m = length of the binary filed
//* m26 = pre-defined edit mask explained in the below link
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DFSORT Edit Masks
Hope this helps...
_________________
Kolusu
www.linkedin.com/in/kolusu |
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mf_user
Intermediate
Joined: 01 Jun 2003
Posts: 372
Topics: 105
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| Posted: Fri Oct 17, 2008 6:46 am Post subject: My Question on M26 Mask |
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Hi,
I supplied below low-values in SYSIN and got the below displayed in SYSOUT !
Sysin:
| Code: |
//SORTOUT DD SYSOUT=*
//SYSIN DD *
SORT FIELDS=COPY
OUTREC FIELDS=(1,6,FI,M26)
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But, when I check each byte individually it is shown differently.....
For 00 - +000
For 01 - +001
For 02 - +002
For FF - +255
For 20 - +032 etc
Would you please explain.
Thanks.
_________________
MF
==
Any training that does not include the emotions, mind and body is incomplete; knowledge fades without feeling.
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Dibakar
Advanced
Joined: 02 Dec 2002
Posts: 700
Topics: 63
Location: USA
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| Posted: Fri Oct 17, 2008 9:52 am Post subject: |
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MF,
I guess you are making a basic mistake by looking at each byte seperately and not as a whole. Remember a decimal number '123' is not 1, 2, 3 but 100+20+3.
Similarly a hexadecimal number, '0102ff20ff' is ff + (20*16) + ff*(16**2) + ff*(16**3) + 2*(16**4) + 1*(16**5), bracketed operations are in decimal. Not 01, 02, ff, 20, ff
To clarify further you can try open a calculator in scientifc mode. Put '0102ff20ff' as hex number. Then select decimal to see the transformation.
Diba. |
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kolusu
Site Admin
Joined: 26 Nov 2002
Posts: 12376
Topics: 75
Location: San Jose
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mf_user
Intermediate
Joined: 01 Jun 2003
Posts: 372
Topics: 105
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| Posted: Fri Oct 17, 2008 11:48 am Post subject: |
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Dibakar, using CALC in PC is better idea. Thanks.
_________________
MF
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Any training that does not include the emotions, mind and body is incomplete; knowledge fades without feeling.
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Frank Yaeger
Sort Forum Moderator
Joined: 02 Dec 2002
Posts: 1618
Topics: 31
Location: San Jose
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| Posted: Fri Oct 17, 2008 12:06 pm Post subject: |
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| Quote: | | '0102ff20ff' is ff + (20*16) + ff*(16**2) + ff*(16**3) + 2*(16**4) + 1*(16**5) |
You have it wrong. It would be the following in decimal:
(15*16**0)+(15*16**1)+(0*16**2)+(2*16**3)+(15*16**4)+(15*16**5)+(2*16**6)+(0*16**7)+(1*16**8)
_________________
Frank Yaeger - DFSORT Development Team (IBM)
Specialties: JOINKEYS, FINDREP, WHEN=GROUP, ICETOOL, Symbols, Migration
DFSORT is on the Web at:
www.ibm.com/storage/dfsort |
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Dibakar
Advanced
Joined: 02 Dec 2002
Posts: 700
Topics: 63
Location: USA
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| Posted: Tue Nov 11, 2008 9:58 pm Post subject: |
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| Opps, I missed this post and the correction. Thanks Frank. |
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