HLASM Language Reference

DC Instruction—Graphic Constant
results in the assembled character string value of:
D1D1D1
Examples of graphic constants are:
DBCS1 DC G''
DBCS2 DC GL1''
DBCS3 DC GL4''
Because the length attribute does not include the SO and SI, the length attribute of
DBCS1 is 6. The length modifier of 10 for DBCS2 causes padding of 2 double-byte
spaces at the right of the nominal value. The length modifier of 4 for DBCS3 causes
truncation after the first 2 double-byte characters. The length attribute of a graphic
constant must be a multiple of 2.
Type Attribute of G-Type Constant: Don't confuse the G-type constant character
with the type (data) attribute of a graphic constant. The type attribute of a graphic
constant is @, not G. See the general discussion about data attributes on page
324, and “Type Attribute (T')” on page 328.
Figure 40. Graphic Constants
Subfield Value Example Result
1. Duplication factor Allowed DC 3G'' Object code
X'42C142C142C1'
2. Type G
3. Type Extension Not allowed
| 4. Program type Allowed
5. Modifiers
Implicit length:
(length modifier
not present)
Alignment:
Range for length:
6. Nominal value
Represented by:
Enclosed by:
Number of values
per operand:
Padding:
Truncation of
assembled value:
As needed
(twice the number
of DBCS
characters)
Byte
2 to 256, must be
multiple of 2
(byte length)
bit length not
allowed
DBCS characters
delimited by SO
and SI
Single quotation
marks
One
With DBCS
spaces at right
(X'4040')
At right
GC DC G'' L'GC = 4
DC G'