Two Causes of Interrupt 0 in MASM Program

Last reviewed: January 23, 1995
Article ID: Q27587

The information in this article applies to:

Microsoft Macro Assembler for MS-DOS, versions 5.0, 5.1, 5.1a, 6.0, 6.0a, and 6.0b

When running a program created by the Microsoft Macro Assembler, an "integer divide by 0" may be generated. In MASM version 6.0 and later, the error number generated will be R6003. The documentation for MASM version 6.0 gives the following explanation:

   Run-time error R6003

   integer divide by 0

   An attempt was made to divide an integer by 0, giving an
   undefined result.

Another possible cause, documented in the Microsoft Macro Assembler version 5.0 Programmer's Guide under DIV/IDIV, is the quotient overflowing its target register.

Additional reference words: kbinf 5.00 5.10 5.10a 6.00 6.00a 6.00b
KBCategory: kbprg
KBSubCategory: MASMLngIss

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Last reviewed: January 23, 1995
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