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data word.
Double length word operations permit the automatic handling of six alphanumeric
characters with a single instruction. These convenientword sizes eliminate the need for elaborate
partial word facility. Information must be in the BCD format prior to printing o r typing.
The word below illustrates how 3 random characters a r e represented in a six-bit (BCD) format
within one word:
The table below illustrates the range of alphanumeric characters which can be represented within
any six bit positions within any word of storage:
Alphanumeric Character
Zone
Bits
Numeric Bits
A,
A
1
-+v-v-Y-w--vYv
0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1011 1100 1101 1110
GE-235
Alphanumeric Characters
Binary Words
A
binary data word consists of 19 bits plus the sign bit. For example, the decimal number
+49
i s represented in binary form as:
Negative binary numbers a r e expressed in 2's complement form. F o r example, the decimal
number -10 i s represented in binary form as:
4
1
=
-
(minus)
IV- 3
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