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_go32_dpmi_simulate_int
=======================

Syntax
------

     #include <dpmi.h>
     
     int _go32_dpmi_simulate_int(int vector, _go32_dpmi_registers *regs);

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

DPMI Overview:    

This function simulates a real-mode interrup.  The registers are set up
from REGS, including `CS' and `IP', which indicate the address of the
call.  Any registers the function modifies are reflected in REGS on
return.

If `SS' and `SP' are both zero, a small temporary stack is used when in
real mode.  If not, they are used AS IS.  It's a good idea to use
`memset' to initialize the register structure before using it.

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

Zero on success, nonzero on failure.

Example
-------

     _go32_dpmi_registers r;
     r.h.ah = 0x08;
     r.h.dl = 0x80; /* drive C: */
     r.x.ss = r.x.sp = 0;
     _go32_dpmi_simulate_int(0x13, &r);
     printf("disk is %d cyl, %d head, %d sect\n",
            r.h.ch | ((r.x.cl<<2)&0x300),
            r.h.dh, r.h.cl & 0x3f));