This DPMI 0.9 Specification is hosted by Tenberry Software, Inc.

11.2 Call Real Mode Procedure With Far Return Frame


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This function calls a real mode procedure. The called procedure must execute a far return when it completes.

To Call

     AX = 0301h
     BH = Flags
          Bit 0 = 1 resets the interrupt controller and A20 line
          Other flags reserved and must be 0
     CX = Number of  words to copy from  protected mode to
          real mode stack
     ES:(E)DI = Selector:Offset of real mode call structure

Returns

     If function was successful:
     Carry flag is clear.
     ES:(E)DI = Selector:Offset of modified real mode call structure

     If function was not successful:
     Carry flag is set.

Programmer's Notes


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This HTML edition of the DPMI 0.9 Specification is hosted by Tenberry Software, Inc., makers of the DOS/16M and the DOS/4G family of DOS extenders. Page last modified 2003.1.28, <webmaster@tenberry.com>