/* memcpy.c - memcpy */

/*------------------------------------------------------------------------
 *  memcpy  -  Copy a block of memory from src to dst, and return a
 *                        pointer to the destination
 *------------------------------------------------------------------------
 */
void    *memcpy(
          void          *s,     /* Destination address                  */
          const void    *ct,    /* source address                       */
          int           n       /* number of bytes to copy              */
        )
{
        if(n <= 0) {
                return s;
        }

        asm volatile (
                        /* Source address is loaded in esi */
                        /* Dest address is loaded in edi   */
                        /* Count is loaded in ecx          */
                        "rep    movsb\n\t"
                        :                               /* Output       */
                        : "S" (ct), "D" (s), "c" (n)    /* Input        */
                        :                               /* Clobber      */
                     );
        return s;
}