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Error A20

Summary
*** Error A20

Invalid Simple Relocatable Expression

Description

A simple relocatable expression is an expression that is used in a relocatable segment to represent an address. External symbols as well as symbols from other segments are not allowed in a simple relocatable expression. However, a simple relocatable expression may contain symbols from the same segment.

Cause

This error is caused by an invalid operand in the expression.

Resolution

Carefully check the expression to be sure it contains no external symbols.

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