Block adjust, Block constant – Xerox 701P21091 User Manual
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Specifying input parameters
Using LCDS Print Description Language
2-13
BLOCK ADJUST
Specifies a block adjustment value that is added to, or subtracted
from, the contents of the block length field to determine the true
block length. (Refer to the BLOCK LENGTH parameter
description for further information.)
Syntax
BLOCK ADJUST = value
Options
Default
0
BLOCK CONSTANT
Specifies that the block delimiter constant sc and all data
following it are ignored until the end of the block is reached.
Syntax
BLOCK CONSTANT = sc
Options
Default
No default
Table 2-5. BLOCK ADJUST parameter options and definitions
Option
Definition
value
Specifies the block adjustment length. This length is a constant integer that is
added to or subtracted from the value in the block length field of every tape
block. The resulting value is the true block length.
The range for a value is -127 to 127 and must be less than the block LENGTH
parameter.
A plus (+) or minus (-) character may be used to specify a positive or negative
adjustment value.
Table 2-6. BLOCK CONSTANT parameter options and definitions
Option
Definition
sc
(String constant) A string (hexadecimal, octal, or character) constant as
described under “Coding a JSL.”
The length of the constant must be from one to four bytes.