Can COBOL display Comp variable 3?
In the below file, the last 2 Bytes are COMP-3 Data. You read the Hexa-decimal value in a top-down fashion. 3. You may also DISPLAY this in COBOL, by first MOVE’ing the data to a Numeric-Edited DISPLAY Format Variable.
What is Comp-3 variables COBOL?
(also called “Computational-3”, “Packed Decimal”, or “Packed”) COBOL Comp-3 is a binary field type that puts (“packs”) two digits into each byte, using a notation called Binary Coded Decimal, or BCD. This halves the storage requirements compared to a character, or COBOL “display”, field.
Can we move Comp to Comp-3?
1. it possible to move a comp-3 field to a comp field or display field and vice versa.. 2. it possible to redefine a field with comp-3 status to a comp status.
What is Comp-3 variable in mainframe?
COMP-3 is the equivalent of PACKED-DECIMAL. COMP-3 usage clause is applicable for numeric data type. If an item declared as COMP-3, the item appears in storage in packed decimal format. The right most half byte contains the sign value. COMP-3 data item contains any of the digits 0 through 9, a sign.
Can Comp-3 be converted to numeric?
You cannot move a COMP-3 variable to alphanumeric directly. It will not give a SOC7 error but will you give you a return code 12 stating that comp-3 and alphanumeric variables did not follow the move compatibility rule. 01 A1 PIC S9(4) COMP-3 VALUE 1234.
How do you use comp variables in COBOL?
COBOL has what you might call “decimal-binary” fields (COMP and siblings). That is, the data is stored as binary but its maximum and minimum values are the number and full value of the PICture clause which is used in the definition. COMP PIC 9 – can contain zero to nine. COMP PIC S99 – (signed) can contain -99 to +99.
How do you calculate Comp-3?
To calculate the byte-length of a comp-3 field, start with the total number of digits and divide by 2 giving a result (discarding the remainder if any), then add 1 to the result. So, a field with “pic s9(6) comp-3” would take 4 bytes (6/2 +1).
What is the difference between Comp & Comp-3?
COMP usage stores the data in half word or in full word, depending on the size of the data. COMP3 usage stores 1 digit in half byte (i.e. 4 bits) and a separate 1 bit is reserved for the sign, which is stored at the right side of the data.
How do you redefine COMP three variables?
There is no way to use only redefines and get what you want. . . To get what you want, create a 9(13) field in ws and move EMP-NBR-1 to it. Redefine the 9(13) field with 2 other fields – the first 9(10) and the second 9(3).
Can we move zeros to Comp-3 Variable?
When you move ZERO/ZEROS/ZEROES to a group level which contains elementary COMP-3 fields (in this example) 12-Bytes of Display-Numeric ZERO (X’F0′) is moved to all three fields, which will eventually cause a S0C7 Data Exception. LE has a storage option to initialize memory to LOW-VALUES.
How do you move Comp three variables to Alphanumeric in COBOL?
You cannot move a COMP-3 variable to alphanumeric directly. It will not give a SOC7 error but will you give you a return code 12 stating that comp-3 and alphanumeric variables did not follow the move compatibility rule.
How do I convert comp to numeric in COBOL?
RE: moving COMP value to numeric value
- 01 val1-display PIC 99.99999. Very Important! I am presuming that you have remembered to initialize. the val1 by coding :-
- MOVE 0.324 TO VAL1. So now, add.
- MOVE VAL1 TO VAL1-DISPLAY. DISPLAY ‘VAL1-DISPLAY=>’ VAL1-DISPLAY. Let us know how you go.
How to view comp-3 fields in COBOL?
Re: how do you view comp-3 fields? Suppose if you have mentioned a field in COMP-3 format in cobol,that field appears in the generated file (in “VIEW” mode) as a packed decimal format.so,if you want see that field in decimal format write a simple sort card for expanding that filed using “EDIT” keyword.
What are COBOL data field structures?
COBOL Data field structures are define as hierarchical structures. The 01 H-L group field – & any sub-group level field – Is almost always an implied CHARACTER string value If an individual element field is a 01 or 77 level – then it can be numeric.
What are the group level move rules in COBOL?
Note the decimal alignment & zero padding. Group Level MOVE rules COBOL Data field structures are define as hierarchical structures. The 01 H-L group field – & any sub-group level field – Is almost always an implied CHARACTER string value If an individual element field is a 01 or 77 level – then it can be numeric.
How to convert binary to zoned decimal in COBOL?
If you click on it, find the Enterprise COBOL Application Programming Reference manual, and read 6.2.10 in this manual on the DISPLAY statement, you will find Binary and internal decimal items are converted to zoned decimal.