From: nowhere@nospicedham.never.at   
      
   On 08.10.2020 13:19, Kerr-Mudd,John wrote:   
   > I found an old cal.com (900 bytes)   
   >> cal /? gives   
   >   
   > CAL  1.07  Freeware   
   > Copyright 1998, Charles Dye   
   >   
   > CAL   
   > CAL mm/yyyy   
   > CAL yyyy   
   >   
   > ; I have another 856 byte one   
   >   
   > which I may have written, or recreated from someone else's com:   
   >> cal /? gives   
   > Unknown month or year. Example usage: "cal march 83"   
   >   
   > which shows how long ago it was written!   
   >   
   > I have rewritten it to the same spec:   
   > cal               (uses current mth&year)   
   > cal mthname       (uses current year and mthname)   
   > cal mthname year  (uses year and mthname)   
   >   
   > current byte count is down to 465   
   >   
   >   
   > Sample output:   
   >> cal fEb   
   >   
   >          February 2020   
   >   
   > Sun Mon Tue Wed Thu Fri Sat   
   >   
   >                           1   
   >   2   3   4   5   6   7   8   
   >   9  10  11  12  13  14  15   
   > 16  17  18  19  20  21  22   
   > 23  24  25  26  27  28  29   
   >   
   >   
   > DOS dependencies:   
   > Int 21 fn 2A for curr yr/mth (if full yr/mth not specced)   
   > Int 21 fn 09 to print.   
      
   In my OS there is a running wall clock which can be set to various   
   output forms, the default is a two liner:   
   [Fr Oct.09.20]   
   [23:59:59.999]   
   It initially reads direct from RTCL, it calculates DayOfWeek and the   
   Milli-Seconds join in from the PIT (which is synchronized by RTCL).   
   Together with the few bytes in the IRQ-routines it's about 512 byte.   
      
   And it can be (ab)used to display DOW of any date (based anno 1800).   
   __   
   wolfgang   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)