#include <dos.h>
/* requires a 768 byte array to be created */
int  SaveDACs(int fh, char *savearea)
{
   unsigned seg,off;

   seg=FP_SEG(savearea); off=FP_OFF(savearea);
   _AH=0x10;
   _AL=0x17;
   _BX=0;
   _CX=256;
   _ES=seg;
   _DX=off;
   geninterrupt(0x10);
   return(write(fh, savearea, 768));
}