Hardware Interaction C

#include
#include
#include
void main(void)
{
clrscr();
union REGS regs;
regs.h.ah = 07;
regs.h.al = 5;
regs.h.bh = 8;
regs.h.ch = 0;
regs.h.cl = 0;
regs.h.dh = 50;
regs.h.dl = 50;
int86(0x10,®s,®s);
getch();
}