``++Eval++`` and ``++Callp++`` are the only two exceptions to the rule that each free-format line must start with an operation code. Since you can leave these two opcodes out, you should for cleaner, more readable code.
== Noncompliant Code Example
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Eval Regpay = hours * perHour;
Callp calcTax();
== Compliant Solution
Regpay = hours * perHour;
calcTax();