Write a program that converts times expressed in 24-hour format to 12-hour format using a. m. and p. m. The program should prompt the user for a time in 24-hour format, validate the input, and then output the equivalent time in 12-hour format. For example, if the input time was 1:34, the output time would be 1:34 a. m. If the input time was 18:00, the output time would be 6:00 p. m. The user should be able to repeat this as many times as he or she wishes. in c

Write a new lc-3 trap subroutine (i.e. a subroutine that will be invoked via the trap instruction) that will receive a numeric digit entered at the keyboard (i.e. an ascii character), echo it to the screen, and return in r0 the corresponding numeric value: so if the user types the digit '7', the character '7' will appear on the screen, but the value returned in r0 will be b0000 0000 0000 0111 (#7) you may not use any trap calls in your code - you must implement the "polling" code that interrogates the keyboard status and data registers. ; getnum_tsr ; a subroutine for obtaining a numeric value ; given ascii numeric digit input to keyboard. ; the numeric digit is echoed to the console (e.g. '7' = b0000 0000 0011 0111), ; but the value returned in r0 is the actual numeric value ; corresponding to the digit (e.g. b0000 0000 0000 0111 =