Q68627: C1001: Internal Compiler Error: omfMD.c, Line 446

Article: Q68627
Product(s): See article
Version(s): 6.00 6.00a | 6.00 6.00a
Operating System(s): MS-DOS | OS/2
Keyword(s): ENDUSER | buglist6.00 buglist6.00a | mspl13_c
Last Modified: 6-FEB-1991

The sample program below attempts to save data in the code segment
using inline assembly, but produces the following internal compiler
error when compiled with or without optimizations:

   foo.c(10) : fatal error C1001: Internal Compiler Error
                (compiler file '@(#)omfMD.c:1.26', line 446)
                Contact Microsoft Product Support Services

The sample code was designed to store the stack segment immediately
after the jmp instruction. The code should compile without any errors;
however, it is usually not good programming choice to write
self-modifying code.

The following are two workarounds:

1. Compile with /qc (the Quick Compile) option.

-or-

2. Use the _based keyword to define a location within the code
   segment. The following sample illustrates this:

      int _based(_segname("_CODE")) savess;
      void foo(void)
      {
          _asm mov savess, SS
      }

Sample Code
-----------

 1. void foo(void)
 2. {
 3.    _asm
 4.    {
 5.       jmp label
 6.       nop
 7.       nop
 8.       nop
 9.    label:
10.       mov CS:WORD PTR $-4, SS
11.    }
12. }

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