----- Original Message -----
From: "Dave Clark" <[email protected]>
To: <[email protected]>
Sent: Saturday, February 12, 2022 5:00 AM
Subject: Rules for Zoned Overpunch
I know that x'F1' and x'C1' are positive and that x'D1' is
negative. But what if I find x'A1', x'B1', or x'E1' for overpunch values?
What is the shortest way (in terms of assembler instructions) to validate
these into just two classes -- positive and negative?
Only 11 and 13 represent negative values; the remainder
represent positive values.
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