DOCUMENT:Q40572 06-MAY-2001 [masm] TITLE :Versions of MASM Prior to 6.0 Do Not Support Flat Model PRODUCT :Microsoft Macro Assembler PROD/VER::4.0,5.0,5.1 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Macro Assembler (MASM), versions 4.0, 5.0, 5.1 ------------------------------------------------------------------------------- SUMMARY ======= The Microsoft Macro Assembler (MASM) versions 5.1 and earlier do not support programming in the flat model. They support only the small, medium, compact, and large memory models. The flat model was introduced in MASM version 6.0 to support OS/2 2.0. The flat model is a memory model based on the Intel 80386 chip which supports full 32-bit addressing and segments greater than 64K. For more information on the flat model, consult the MASM 6.0 "Programmer's Guide" or Intel's "80386 Programmer's Reference Manual." Additional query words: kbinf 4.00 5.00 5.10 ====================================================================== Keywords : Technology : kbMASMsearch kbAudDeveloper kbMASM510 kbMASM400 kbMASM500 Version : :4.0,5.0,5.1 ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.