SET CLOCK ROUTINE

                            by Don Retzlaff


       After getting the Real Time Clock running with the display on

       the screen, I wanted a way to set the clock.  Initially I did

       this through a Basic program using POKE statements.  What a 

       pain - having to call in Basic, just to set the clock.

       Obviously and Assembly language routine was in order.  The

       following SETCLK routine does the job.


       When you run SETCLK, the following prompts are displayed on

       the screen:


                    ENTER YEAR

                    ENTER MONTH

                    ENTER DAY

                    ENTER HOUR

                    ENTER MIN


       After each prompt a two digit number is expected.  Use a

       leading 0 if necessary.  If an error is made on the first 

       digit you can backspace (ctl-H) and re-enter it.  If an

       error is made on the second digit - too bad - C/R through the

       rest of the prompts and call up SETCLK again and reset the

       clock.  No carrage returns are expected after the second

       digit.


       If you do not want to set the Year, Month, and Day - enter a

       C/R after the first prompt (ENTER YEAR) and the next prompt

       will be ENTER HOUR.

       Works great - Try it!