PRB: "AT" Combine Types

ID: Q26839

The information in this article applies to:

Microsoft Macro Assembler for MS-DOS, versions 5.0, 5.1, 5.1a
Microsoft Macro Assembler for OS/2, versions 5.1, 5.1a

SYMPTOMS

The Microsoft Macro Assembler will generate a misleading error message when a segment with the AT combine type is specified with a segment value that is too large. The error message generated will be:

error A2029: Division by 0 or overflow

It is not clear from the error message that the segment value was too large.

CAUSE

This is the expected behavior of MASM 5.0, 5.1, and 5.1a.

RESOLUTION

MASM 6.0 now generates the following error message:

error A2084: constant value too large

MORE INFORMATION

The following sample code can be used to demonstrate the problem.

Sample Code


; Assemble options needed: none

S1  SEGMENT AT  01234H   ; This segment is OK
S2  ENDS

S2  SEGMENT AT  12345H   ; This segment generates a misleading error
S2  ENDS

END

Additional query words: 5.00 5.10 5.10a

Keywords :
Version : :5.0,5.1,5.1a
Platform :
Issue type :