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Synopsis:
    #include <i86.h>
    int int86( int inter_no,
               const union REGS *in_regs,
               union REGS *out_regs );

Description:
    The int86 function causes the computer's central processor (CPU) to be
    interrupted with an interrupt whose number is given by inter_no.  Before
    the interrupt, the CPU registers are loaded from the structure located
    by in_regs.  Following the interrupt, the structure located by out_regs
    is filled with the contents of the CPU registers.  These structures may
    be located at the same location in memory.

    You should consult the technical documentation for the computer that you
    are using to determine the expected register contents before and after
    the interrupt in question.

Returns:
    The int86 function returns the value of the CPU AX register after the
    interrupt.

Example:
    /*
     * This example clears the screen on DOS
     */
    #include <i86.h>

    void main()
      {
        union REGS  regs;

        regs.w.cx = 0;
        regs.w.dx = 0x1850;
        regs.h.bh = 7;
        regs.w.ax = 0x0600;
    #if defined(__386__) && defined(__DOS__)
        int386( 0x10, &regs, &regs );
    #else
        int86( 0x10, &regs, &regs );
    #endif
      }

Classification:
    Intel

Systems:
    DOS/16, Windows, Win386, QNX/16, DOS/PM

See Also:
    bdos, int386, int386x, int86x, intdos, intdosx, intr, segread