For PLC users, there is a special PMP directive to force a special "one bit" mode during expression evaluation: CODEGEN 1+

After this directive, operators *, / and + are redefined to AND, NOT and OR respectively.

Normal mode is restored by: CODEGEN 1-

For example, the following expression:

(/A + B) * C

will be interpreted as:

(NOT A OR B) AND C

Warning, in one bit mode, all terms are treated as booleans (not zero is true).