Gods Of COBOL

[Chris Losinger]

yeah, it's amazingly verbose. i have to translate a bunch into C/C++ and i'm learning as i go. but this bit makes no sense to me.

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[Chris Losinger]

Andy Brummer wrote:

a bunch of 2 byte integers with 4 bytes left over

hmm... yeah, i suppose that could be it. the 'leftover bytes' feels stupid and wrong, but maybe i should just get over that... i'll give it a try!

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modified on Friday, April 9, 2010 4:38 PM

[Ian Shlasko]

Chris Losinger wrote:

anybody here know COBOL ?

I'd learn it, but... well... Some things just aren't meant to be done without large amounts of illegal drugs, and I'm not into that.

Proud to have finally moved to the A-Ark. Which one are you in?
Author of the Guardians Saga (Sci-Fi/Fantasy novels)

[Joe Woodbury]

My eyes keep glazing over while trying to read this. I tried sending it through Babel Fish, but it didn't do any good. I'll just guess that it means:

int main()
{
puts("Hello World");
}

[Pete OHanlon]

Chris Losinger wrote:

yeah, it's amazingly verbose.

Invented by a woman, don't you know? I'm just saying, that's all.

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

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[Pete OHanlon]

As far as I can tell, it means that the chances of you using COBOL to stop the nuclear countdown in 24 is going to be slim. Jack Bauer: "Dammit Chloe. I need aerial surveilance now." Chloe: "I'm trying Jack. I'm still only halfway through the declaration section."

"WPF has many lovers. It's a veritable porn star!" - Josh Smith

As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes.

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[Jeremy Falcon]

Might be worthwhile running it through a COBOL to C translator. Then maybe you can make sense of the C code.

Jeremy Falcon

[Douglas Troy]

This is nothing more than a string (alphanumeric) 2816 characters

Chris Losinger wrote:

01 MEMORY-AREA-ONE PIC X(2816).

that second section

Chris Losinger wrote:

01 REDEFINES MEMORY-AREA-ONE. 05 K01-1 OCCURS 37 TIMES INDEXED BY K01-1-X PIC 9(04) COMP-5. 05 K02-1 OCCURS 1369 TIMES INDEXED BY K02-1-X PIC 9(04) COMP-5.

Pic 9(04) COMP-5 is a 4 byte numeric stored in machine independent format Essentially, those two lines redefine the space originally defined by MEMORY-AREA-ONE into two blocks of unsigned 16-bit integers. I cannot recall what the INDEXED allows you to do anymore ... Not sure any of that helps you ... [edit] You might also considering hitting up the COBOL User Groups[^] for help with this, and/or other COBOL related issues you might have. Just a thought.

---

:..::. Douglas H. Troy ::..
Bad Astronomy |VCF|wxWidgets|WTL

modified on Friday, April 9, 2010 5:51 PM

[Luc Pattyn]

Hi Chris, you are aware there are a couple of .NET COBOL compilers around? you might be lucky and have a look at the IL your source generates; and reflector might be willing to show you equivalent C# or VB.NET code. And maybe you don't need to translate it after all, just run it... :)

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Getting an article published on CodeProject should be easier and faster for Bronze and Silver authors.

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[CPallini]

No cookie for you: COBOL is the only computer language invented by the Etrurians. :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

[CPallini]

Luc Pattyn wrote:

you are aware there are a couple of .NET COBOL compilers around?

Their authors should be flamed, immediately. :rolleyes:

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]

[Steve Mayfield]

Isn't that part of the start up code for Cylons...oh wait, that's "Lords of Kobol" :laugh:

Steve _________________ I C(++) therefore I am

modified on Friday, April 9, 2010 5:55 PM

[martin_hughes]

 01 SORRY-CHRIS                                          PIC YOUR-NAME(LANCELOT).
 
 01 I-DON'T-KNOW.
   05 IDK OCCURS 100 TIMES
          INDEXED BY I-REALLY-DON'T-KNOW                 PIC A-COLOUR(BLUE).
   05 IDK-2 OCCURS 1520 TIMES
          INDEXED BY WHAT-IS-THE-CAPITAL-OF-ASSYRIA      I-DON'T-KNOW-THAT(NONE).  

Output is apparently "Arrrrrrrrrrrrrggggggggggghhhhhhhhhhhhhhhhhh!"

Books written by CP members

[Steve Mayfield]

4 bytes left over Maybe the 4 extra bytes are for the array index variables (K01-1-X & K02-1-X)

Steve _________________ I C(++) therefore I am

[Steve Mayfield]

01 MEMORY-AREA-ONE PIC X(2816).
01 REDEFINES MEMORY-AREA-ONE.
05 K01-1 OCCURS 37 TIMES
INDEXED BY K01-1-X PIC 9(04) COMP-5.
05 K02-1 OCCURS 1369 TIMES
INDEXED BY K02-1-X PIC 9(04) COMP-5.

maybe becomes :confused:

union {
{
PIC MEMORY-AREA-ONE X[2816];
struct {
PIC K01-1-X;
PIC K01-1[37];
PIC K02-1-X;
PIC K02-1[1369];
} COMP-5
};

Steve _________________ I C(++) therefore I am

[JimmyRopes]

Chris Losinger wrote:

'leftover bytes' feels stupid

COBOL programmers were never known to be sticklers for programming best practices. COBOL, like VB, allows non-programmers to think they can program. I have many years of experience in technical support (we programmed in assembler on IBM mainframes) supporting COBOL shops, and I have the scars to prove it.

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Think inside the box! ProActive Secure Systems
I'm on-line therefore I am. JimmyRopes

[Chris Losinger]

Douglas Troy wrote:

I cannot recall what the INDEXED allows you to do anymore ..

i think that defines an iterator/pointer that's initialized to the start of the subgroup.

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[Sean Cundiff]

Chris Losinger wrote:

01 MEMORY-AREA-ONE PIC X(2816).

Allocate a block of memory 2816 bytes in size and fill with 'X'. Name the block of memory 'MEMORY-AREA-ONE'.

Chris Losinger wrote:

01 REDEFINES MEMORY-AREA-ONE.
05 K01-1 OCCURS 37 TIMES
INDEXED BY K01-1-X PIC 9(04) COMP-5.
05 K02-1 OCCURS 1369 TIMES
INDEXED BY K02-1-X PIC 9(04) COMP-5.

Reallocate the array for a different purpose. K01-1 is an array that contains 37 elements. The index to the array is K01-1-X. Each element is a 4-byte numeric. 'PIC 9(04)' Each element is stored as a 2's complement big-endian number in machine-dependant format. 'COMP-5' When I say big-endian I mean that when the number is displayed it will be displayed as 4 digits from left to right with most significant to least significant order. Whether it's big-endian in memory depends on the implementation. K02-1 is a 1369 element array with similar properties. K01-1-X and K02-1-X are the variables used to index the arrays. Each one belongs to it's respective array and can't be used for the other one. p-code example: for K01-1-X in {1 .. 37} do something with K01-1[K01-1-X]

-Sean ---- Fire Nuts

modified on Friday, April 9, 2010 6:58 PM

[Sean Cundiff]

Douglas Troy wrote:

Pic 9(04) COMP-5 is a 4 byte numeric stored in machine independent format

Machine-dependent format if I'm not mistaken. COMP-4 is machine independent.

-Sean ---- Fire Nuts

[Chris Losinger]

how can they be 4 byte integers ? that's twice the size of the MEMORY-AREA-ONE's 2816 bytes. (37 + 1369) * 4 = 5624 i'm thinking the 4 is the number of places allowed for the value. 9(4) is a 4 digit integer (0-9999) ? you can fit that in a two byte integer, which would fit in the 2816 bytes. make sense ?

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