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Positive signed binary data is identical to unsigned binary data (up to 32,767)
and can be converted using BIN(100). The following procedure converts nega-
tive decimal values between –32,768 and –1 to signed binary. In this example
–12345 is converted to CFC7.
Bit number
Contents 0011000000111001
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
1. First take the absolute value (12345) and convert to unsigned binary:
Bit number
Contents 1100111111000110
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
2. Next take the complement:
Bit number
Contents 1100111111000111
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
3. Finally add one:
Reverse the procedure to convert negative signed binary data to decimal.
Converting Decimal to
Signed Binary
Data Area Structure Section 3-2
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