USAGE
   signed int sccdiperm(
           signed char *days,
           signed int year,
           signed int month );

PROTOTYPE IN
   sc_clock.h

DESCRIPTION
   sccdiperm calculates the number of days in month for year.
   This function also senses leap year and will properly return 29 days for
   February.

EXAMPLE
   #include <stdio.h>
   #include <softc.h>
   #include <sc_clock.h>

   void main()
   {
     signed char d;

     sccdiperm(&d,1989,3);
     printf("%d",d);
   }