Q39443: FIX: Parentheses Necessary for Operator Precedence

Article: Q39443
Product(s): Microsoft Macro Assembler
Version(s): 5.1
Operating System(s): 
Keyword(s): 
Last Modified: 04-MAY-2001

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The information in this article applies to:

- Microsoft Macro Assembler (MASM), version 5.1 
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SYMPTOMS
========

Using Microsoft Macro Assembler (MASM) version 5.1, You may be able to correct
"Illegal size for operand" errors by careful use of parentheses.

STATUS
======

Microsoft has confirmed this to be a problem in MASM version 5.1. This problem
was corrected in MASM version 5.1a.

MORE INFORMATION
================

The following code demonstrates warnings, errors, and their solution:

  dosseg
  .model small,c
  .data

  .code
  myproc PROC buffer:FAR PTR BYTE

             mov     bx, WORD PTR buffer[0]
             mov     ds, WORD PTR buffer[2]

  ; MASM gives an operand-size error. This is a precedence problem that
  ; you can correct with parentheses:

             mov     bx, WORD PTR (buffer[0])
             mov     ds, WORD PTR (buffer[2])

  myproc ENDP

  end

Additional query words: 5.10 buglist5.10 fixlist5.10a

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Keywords          :  
Technology        : kbMASMsearch kbAudDeveloper kbMASM510
Version           : :5.1
Solution Type     : kbfix

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