intx086.c

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C语言 代码 · 共 68 行

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*                            Open Watcom Project
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* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
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#include "variety.h"
#include <dos.h>

_WCRTLINK int int86x( int intno, union REGS *inr, union REGS *outr, struct SREGS *sr )
    {
        union REGPACK r;

        r.x.ax = inr->x.ax;
        r.x.bx = inr->x.bx;
        r.x.cx = inr->x.cx;
        r.x.dx = inr->x.dx;
        r.x.si = inr->x.si;
        r.x.di = inr->x.di;
        r.x.ds = sr->ds;
        r.x.es = sr->es;
        intr( intno, &r );
        outr->x.ax = r.x.ax;
        outr->x.bx = r.x.bx;
        outr->x.cx = r.x.cx;
        outr->x.dx = r.x.dx;
        outr->x.si = r.x.si;
        outr->x.di = r.x.di;
        outr->x.cflag = r.x.flags & INTR_CF;
        sr->ds = r.x.ds;
        sr->es = r.x.es;
        return( r.x.ax );
    }

_WCRTLINK int int86( int intno, union REGS *inr, union REGS *outr )
    {
        struct SREGS sr;

        segread( &sr );
        return( int86x( intno, inr, outr, &sr ) );
    }