Q66507: CodeView Fails to Return Value in ES

Article: Q66507
Product(s): See article
Version(s): 3.00 3.10 3.11
Operating System(s): MS-DOS
Keyword(s): ENDUSER | buglist3.00 buglist3.10 buglist3.11 | mspl13_basic
Last Modified: 9-NOV-1990

When CodeView is running in extended memory and a call is made to
interrupt 15h function C0h, the value in the ES register is not
changed. This interrupt call should return the segment of the system
configuration table in the ES register. If CodeView is run with the /D
or /E option, a value is returned in the ES register as it should be.

Microsoft has confirmed this to be a problem in CodeView versions
3.00, 3.10, and 3.11. We are researching this problem and will post
new information here as it becomes available.

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

main ()
  {
   _asm mov ah, 0xC0
  _asm int 0x15
  }

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