date:20110414

Re: New job for mainframes: Cloud platform

2011-04-14 Thread Graeme Gibson


@!@%*! === that's Klingon for Argggh!

Thanks Rex, we don't want to leave mangled claptrap 'round to further 
confuse the not-yet-knowing!


Yup, I was thinking hex and binary at the same time, and failed to 
keep them surgically separate!  I'd originally represented the eax 
register content in hex, then thought it would be better, clearer, if 
I typed out the bits!  (! = more Klingon, but cloaked!)


Of course, for the bit representation of eax I meant to type:

  eax:     0001 0010 == binary
  eax: 00   00   01   20 == hex


I also removed a discussion of bit order reversal (Least Significant 
Bit first) in serial comms lines, SYNC sequences, et cetera.  Chris 
M. or any number of others would do that topic better than I would.


So much stuff has gone under the bridge in the last 50 or 60 years, 
but in 100 years time there will still be 6 year olds stumbling on 
rusted-up gems buried in 
insertnameoffavouritesearchengineofthe22ndcenturyhere.  The 
Internet is becoming our muddy lake bottom, preserving stuff for far 
distant futures.


Graeme

At 06:13 AM 13/04/2011, you wrote:

Graeme,

Sorry, but I just have to do this.  X86 registers work in trinary 
mode rather than binary?  Your map of the eax register shows.


eax:     0001 0020   ==  What's the 
0020 mean?  :-)


Rex

-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@bama.ua.edu] On 
Behalf Of Graeme Gibson

Sent: Monday, April 11, 2011 11:42 PM
To: IBM-MAIN@bama.ua.edu
Subject: Re: New job for mainframes: Cloud platform

Well, let's not skew the kiddie's brains too much..

Endian- ness, in the context used in these posts, refers to BYTE
order not BIT order.

The bit-order *within each byte* is still most significant on the
left in both big- and little- endian systems.

Another wrinkle:  In the x86 world (little-endian) Intel names the
bits within a byte, from the left, 7,6,5,4,3,2,1,0 whereas in the z..
world (big-endian) IBM names them 0,1,2,3,4,5,6,7.  Regardless of
the naming scheme used, the rightmost bit in each byte is the
least-significant. :-)

An x86 code fragment might help to illustrate:

 .code
 mov eax,258 ;let's start with 258 KG
 mov weight,eax
 ..
 ..
 ret
 .data
weight  dd  0   ;weight in kilograms

After that 2nd mov instruction, while the 32-bit eax register looks like:

bits 32,31,..,24
|bits 23,22,..,16
||bits 15,14,..,8
|||bits 7,6,5,..,0
||||
eax:     0001 0020

..the four bytes at label weight will look like:

weight 0010 0001  
||||
|||bits 32,31,..,24
||bits 23,22,..,16
|bits 15,14,..,8
bits 7,6,5,..,0

So, bit numbering aside, it still looks like a big-endian world once
you're inside the processor.

Cheers,
Graeme


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Re: Esoterics names for DB2 V8

2011-04-14 Thread Ron Hawkins

What is unit Hydra?

 -Original Message-
 From: IBM Mainframe Discussion List [mailto:IBM-MAIN@bama.ua.edu] On Behalf Of
 Grillo Paul
 Sent: Wednesday, April 13, 2011 7:44 PM
 To: IBM-MAIN@bama.ua.edu
 Subject: [IBM-MAIN] Esoterics names for DB2 V8

 *Does anybody can help me about esoterics names in DB2 V8 ??? We want to
 make a migrate, to unit Hydra, and we are not sure, if exist this nomination
 for it, tests were made in previous version(V7), and failed.*
 **
 *Answers will be welcome  *
 **
 *Best regards*
 **
 *Jorge Arueira  *

 *Support team *
 **
 *www.4bears.com.br*

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Re: Esoterics names for DB2 V8

2011-04-14 Thread R.S.

W dniu 2011-04-14 04:44, Grillo Paul pisze:

*Does anybody can help me about esoterics names in DB2 V8 ??? We want to
make a migrate, to unit Hydra, and we are not sure, if exist this nomination
for it, tests were made in previous version(V7), and failed.*

What do you mean?
Is the esoterics you mentioned name for JCL UNIT, like SYSDA or 3390?
It yes, then
Your esoteric names are defined in HCD. This is the place where you
can define esoteric named HYDRA or GISMO, or whatever you want.

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