Extracts bits.
-
w
-
specifies the number of bits to read.
-
d
-
specifies the zero-based offset.
The BITSw.d informat extracts particular bits from an input stream and
assigns the numeric equivalent of the extracted bit string to a variable.
Together, the w and d
values specify the location of the string you want to read.
This informat is useful for extracting data from system
records that have many pieces of information packed into single bytes.
input @1 value bits4.1;
|
Data Line |
Results* |
----+----1----+
|
|
B
|
8
|
*The EBCDIC binary code for a capital B is 11000010, and the ASCII binary
code is 01000010.
The input pointer moves to column 2 (d=1). Then the INPUT statement reads four bits (w=4) which
is the bit string 1000 and stores the numeric value
8, which is equivalent to this binary combination.
Copyright © 2011 by SAS Institute Inc., Cary, NC, USA. All rights reserved.
