description Learn more about: `.ERRNZ` title .ERRNZ ms.date 12/17/2019 f1_keywords .ERRNZ helpviewer_keywords .ERRNZ directive ms.assetid 373a9222-140f-4505-8dec-ef370a069ebf .ERRNZ Generates an error if expression is true (nonzero). Syntax .ERRNZ expression ⟦, message⟧ See also Directives Reference MASM BNF Grammar