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_go32_dpmi_allocate_iret_wrapper
================================

Syntax
------

     #include <dpmi.h>
     
     int _go32_dpmi_allocate_iret_wrapper(_go32_dpmi_seginfo *info);

Description
-----------

DPMI Overview:    

This function creates a small assembler function that handles the
overhead of servicing an interrupt.  To use, put the address of your
servicing function in the `pm_offset' field of INFO and call this
function.  The `pm_field' will get replaced with the address of the
wrapper function, which you pass to both
`_go32_dpmi_set_protected_mode_interrupt_vector' and
`_go32_dpmi_free_iret_wrapper'.

_go32_dpmi_set_protected_mode_interrupt_vector: *Note   
_go32_dpmi_free_iret_wrapper::

Return Value
------------

Zero on success, nonzero on failure.

Example
-------

     _go32_dpmi_seginfo info;
     info.pm_offset = my_handler;
     _go32_dpmi_allocate_iret_wrapper(&info);
     _go32_dpmi_set_protected_mode_interrupt_handler(0x75, &info);
     ...
     _go32_dpmi_free_iret_wrapper(&info);