KB120154 - FIX: DX1020 Using TEXTEQU to Define False IF Block

SYMPTOMS

Using the TEXTEQU directive to define an IF statement that evaluates to FALSE produces the following error message in MASM version 6.1 or 6.1a:

DOSXNT : fatal error DX1020: unhandled exception: General protection fault

When you use ML from MASM version 6.0b, an "Application Error" message box appears when running from a Windows MS-DOS box. From straight MS-DOS, the following error message occurs:

fatal error A1000: cannot open file : error #xx -
: Macro Called From Main Line Code

Using MLX from MASM version 6.0b produces the following error message:

run-time error R6915
- DOSX16 : unhandled exception

Using ML from MASM version 6.0a, the following error messages occur:

fatal error A2051: text item required
: Macro Called From Main Line Code
fatal error A1010: unmatched block nesting : _text

; Assemble options needed: none dbgs textequ <if 0> ; evaluates to false dbgsend textequ <endif> dump_matrix macro dbgs mov ax, ax dbgsend endm _text segment dump_matrix _text ends END

FIX: DX1020 Using TEXTEQU to Define False IF Block

SYMPTOMS

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