Assembler code

khadar78 · New User Joined: 29 Apr 2008 Posts: 16 Location: Mysore

DC X'D54B40C44B40404040404040'
DC H'12'
DC X'D59699A38840C4819296A3814040' NORTH DAKOTA
DC C'ND'
SPACE
DC X'D54B40C4819296A381404040'
DC H'12'
DC X'D59699A38840C4819296A3814040' NORTH DAKOTA
DC C'ND'

This is Assembly level language.
I want to know how the above hexadecimal code can be defined in characters, as done in line 3 for NORTH DAKOTA..
Similarly what can be line 1 will be defined..??
Can we convert hexadecimal in to characters??
and What does X 'FF' mean??

Garry Carroll · Posted: Mon Jan 19, 2009 2:48 pm

Hexadecimal representation of characters runs from

X'C1' to X'C9 = C'A' to C'I'
X'D1' to X'D9' = C'J' to C'R'
X' E2' to X'E9' = C'S' to C'Z'

for lower-case characters, the high-order bit is 'off'. Your line 3
DC X'D59699A38840C4819296A3814040' NORTH DAKOTA

can be coded as :

khadar78 · New User Joined: 29 Apr 2008 Posts: 16 Location: Mysore

hi Garry,

Thanks for your response.
But i did not understand the above concept explained by you.
As in the third line for North Dakota, how can you split of the
D59699A38840C4819296A3814040
could you please explain me in brief??

Garry Carroll · Posted: Mon Jan 19, 2009 3:11 pm

Each pair in the hex string equates to one character

X'D5' = C'N'
X'96' = C'o'
X'99' = C'r'
X'A3' = C't'
X'88' = C'h'

etc.

This is very basic stuff.

Garry.

khadar78 · New User Joined: 29 Apr 2008 Posts: 16 Location: Mysore

ok garry,

Can you please help me out with
D54B40C44B40404040404040
what is the conversion for this??

Garry Carroll · Posted: Mon Jan 19, 2009 4:36 pm

Suggest you look at www.legacyj.com/cobol/ebcdic.html

A simple Google for EBCDIC Table found this. It gives you all you need.

Garry.

khadar78 · New User Joined: 29 Apr 2008 Posts: 16 Location: Mysore

Thanks Garry..

Bill Dennis · Posted: Mon Jan 19, 2009 10:42 pm

Another helpful book is the IBM zArchitecture Reference Summary with Assembler OP codes and EBCDIC / ASCII tables and more.

publibz.boulder.ibm.com/epubs/pdf/dz9zs001.pdf

It's easier to read in the pocket sized hardcopy!

khadar78 · New User Joined: 29 Apr 2008 Posts: 16 Location: Mysore

hi bill,

A good handbook... Thanks a lot